JP2012248497A - Battery and battery electrode - Google Patents

Abstract

A battery and an electrode having an increased capacity without increasing the size of the battery are provided.
A first electrode having a first substrate, a first frame provided on an upper surface of the first substrate, and a second frame provided so as to surround the first frame. Above the first electrode 1 with the same configuration, the upper surface of the first frame 11 and the lower surface of the third frame 21 and the upper surface of the second frame 12 and the lower surface of the fourth frame 22 face each other. The second electrode 2 located in the ring, the annular first resin member 3, and the annular filled between the first electrode 1 and the second electrode 2 in a region outside the outer periphery of the first resin member 3 Power generation element provided in a space surrounded by the second resin member 4 and the first electrode 1, the second electrode 2, and the first resin member 3 and electrically connected to the first electrode 1 and the second electrode 2. 7 and the distance between the upper surface of the second frame 12 and the lower surface of the fourth frame 22 is such that the upper surface of the first frame 11 and the lower surface of the third frame 21 It is a great battery than the interval.
[Selection] Figure 2

Description

  The present invention relates to a battery and a battery electrode used therefor. The battery of the present invention can be used as a power source for electronic devices such as mobile phones, portable information terminals, and notebook computers.

  As a battery, a battery in which a power generation element is provided inside a battery package made of a pair of metal electrodes and a resin sealing material is known. Examples of such a battery include a flat battery described in Patent Document 1.

  In the flat battery described in Patent Document 1, a battery container is formed by fitting a negative electrode can into a positive electrode can via a gasket. Furthermore, it is used as a battery by accommodating a power generation element in a battery container.

Japanese Patent Laid-Open No. 2008-21565

  In general, a battery used for a power source of a portable electronic device is required to be downsized while securing a capacity as the electronic device is downsized. In addition, pressure may be applied to the battery due to an impact caused by dropping the electronic device.

  The flat battery described in Patent Document 1 holds a pair of electrodes with a gasket. For this reason, when pressure is applied to the flat battery from above and below, the gasket may be deformed in the planar direction of the electrode, and pressure may be applied to the power generation element. By using a wide gasket, the above pressure can be suppressed, but in that case, it has been difficult to maintain the size of the flat battery. Further, if a wide gasket is used while maintaining the size of the flat battery, it is difficult to form a wide space in which the power generation element is enclosed. For these reasons, it has been difficult to increase the capacity without increasing the size of the flat battery.

  A battery according to an aspect of the present invention includes a first electrode having a first substrate, a first frame provided on an upper surface of the first substrate, and a second frame provided so as to surround the first frame, A second substrate, a third frame provided on a lower surface of the second substrate, and a fourth frame provided so as to surround the third frame, and an upper surface of the first frame and a lower surface of the third frame And the second electrode positioned above the first electrode such that the upper surface of the second frame body and the lower surface of the fourth frame body face each other, and the upper surface of the first frame body and the third frame body An annular first resin member that is positioned between the lower surface of the first frame member and the third frame member, and a first electrode and a second electrode in a region outside the outer periphery of the first resin member And an annular second resin member filled between the first electrode, the second electrode, and the first resin member, and electrically connected to the first electrode and the second electrode. And a power generating element is connected, the distance between the upper surface and the lower surface of the fourth frame of the second frame is greater than the distance between the upper surface and the lower surface of the third frame of the first frame.

A battery electrode according to one aspect of the present invention includes a first substrate, a first frame provided on an upper surface of the first substrate, and a second frame provided so as to surround the first frame. And a second frame, a third frame provided on the lower surface of the second substrate, and a fourth frame provided so as to surround the third frame,
The second frame is used above the first electrode so that the upper surface of the first frame and the lower surface of the third frame are opposed to each other, and the upper surface of the second frame and the lower surface of the fourth frame are opposed to each other. An upper surface of the second frame when the upper surface of the first frame and the lower surface of the third frame are opposed to each other, and the upper surface of the second frame and the lower surface of the fourth frame are opposed to each other. And the lower surface of the fourth frame are larger than the distance between the upper surface of the first frame and the lower surface of the third frame.

  According to the battery of the above aspect, the distance between the upper surface of the second frame body and the lower surface of the fourth frame body is larger than the distance between the upper surface of the first frame body and the lower surface of the third frame body. When pressure is applied from the vertical direction, the first resin member and the second resin member can be easily deformed to the outer peripheral side of the battery. Thereby, it can suppress that a 1st resin member and a 2nd resin member deform | transform into the center side of a battery. Therefore, it is possible to suppress a large pressure from being applied to the inside without excessively increasing the widths of the first resin member and the second resin member. As a result, the capacity of the battery can be increased.

  According to the battery electrode of the present invention, when the first electrode and the second electrode face each other, the distance between the upper surface of the second frame and the lower surface of the fourth frame is such that the upper surface of the first frame and the It is larger than the distance from the lower surface of the three frame body. Thus, a resin member is provided in a region between the upper surface of the first frame and the lower surface of the third frame and a region outside this region, and the first electrode and the second electrode are joined to produce a battery. Battery with a large capacity.

It is a perspective view which shows the battery and battery electrode of one Embodiment of this invention. It is sectional drawing of the battery and battery electrode which are shown in FIG. It is sectional drawing which shows the battery and battery electrode which concern on one modification. It is sectional drawing which shows the battery and battery electrode which concern on one modification. It is sectional drawing which shows the battery and battery electrode which concern on one modification. It is sectional drawing which shows the battery and battery electrode which concern on one modification. It is sectional drawing which shows the battery and battery electrode which concern on one modification.

  Hereinafter, a battery 99 and a battery electrode 98 according to an embodiment of the present invention will be described with reference to the drawings.

<Battery configuration>
As shown in FIGS. 1 and 2, a battery 99 according to an embodiment of the present invention includes a battery package 9 and a power generation element 7 including an electrolyte member (not shown) enclosed in the battery package 9. ing.

<Configuration of battery package>
The battery package 9 includes a first electrode 1, a second electrode 2 provided on the upper surface side of the first electrode 1 so as to be separated from the first electrode 1, and a first shape so as to be annular when viewed in plan. A region between the first resin member 3 in which the electrode 1 and the second electrode 2 are joined, and the region between the first electrode 1 and the second electrode 2 and on the outer peripheral side than the first resin member 3 is filled. And the annular second resin member 4.

  The first electrode 1 is a member used as a positive electrode or a negative electrode in the battery 99, and surrounds the first substrate 10, the first frame body 11 provided on the upper surface of the first substrate 10, and the first frame body 11. The second frame body 12 is provided. The first electrode 1 can transmit electricity generated inside the battery 99 to the electronic circuit by being electrically connected to an external electronic circuit.

  The 1st board | substrate 10 is a flat member, Comprising: The shape when planarly viewed is circular. The 1st board | substrate 10 has the through-hole 5 opened to an upper surface and a lower surface. The through hole 5 is used as a sealing hole when the electrolyte member is sealed in a region where the power generation element 7 is disposed inside the battery package 9. In addition, after the electrolyte member is sealed, the through hole 5 is sealed with a sealing material 6. As the sealing material 6, for example, a resin material such as an epoxy resin, a phenol resin, or a furan resin can be used. Moreover, as the sealing material 6, a metal piece can also be used.

  As the first substrate 10, for example, a conductive metal material such as nickel, stainless steel, or aluminum can be used. When using the 1st electrode 1 as a positive electrode, it is desirable to use the metal material which is excellent in corrosion resistance like gold, platinum, tungsten, or aluminum for the upper surface part which faces an electrolyte member.

  The first frame body 11 has a function of forming a space filled with the second resin member 4 together with the second frame body 12. The first frame 11 is formed on the upper surface of the first substrate 10. The first frame 11 has an annular shape when viewed in plan. The inner peripheral surface and the outer peripheral surface of the first frame body 11 are formed so that the angle is about 90 degrees with respect to the upper surface of the first substrate 10 when viewed in cross section.

  As the first frame 11, for example, a metal material such as nickel, stainless steel, or aluminum can be used. When using the 1st electrode 1 as a positive electrode, it is desirable for the inner peripheral part which faces an electrolyte member to use the metal material which is excellent in corrosion resistance like gold | metal | money, platinum, tungsten, or aluminum. More preferably, the first frame body 11 and the first substrate 10 may be integrally formed using the same material. Thereby, since the difference in thermal expansion coefficient between the first frame body 11 and the first substrate 10 can be reduced, the thermal stress generated between the first frame body 11 and the first substrate 10 can be reduced. Thereby, the reliability of the battery 99 in an environment where the temperature change is severe can be improved.

  The second frame 12 is provided in order to increase the contact area between the first electrode 1 and the second resin member 4 and thereby strengthen the bonding between the first electrode 1 and the second resin member 4. Yes. The second frame 12 is formed on the upper surface of the first substrate 10 so as to surround the first frame 11 while being spaced apart from the first frame 11. The second frame 12 has an annular shape when viewed in plan. The inner peripheral surface and the outer peripheral surface of the second frame 12 are formed so that the angle is about 90 degrees with respect to the upper surface of the first substrate 10 when viewed in cross section. The second frame 12 has an outer peripheral surface that is flush with the outer peripheral surface of the first substrate 10. A distance D2 between the upper surface of the second frame 12 and the upper surface of the first substrate 10 is formed to be smaller than a distance D1 between the upper surface of the first frame 11 and the upper surface of the first substrate 10.

  As the second frame 12, for example, a metal material such as nickel, stainless steel, or aluminum can be used. Desirably, the second frame 12 and the first substrate 10 are formed integrally using the same material. Thereby, since the difference in thermal expansion coefficient between the second frame shape and the first substrate 10 can be reduced, the thermal stress generated between the second frame body 12 and the first substrate 10 can be relaxed. Thereby, the reliability of the battery 99 in an environment where the temperature change is severe can be improved.

  As dimensions of the first electrode 1, for example, the diameter of the first substrate 10 is 5 to 50 mm, the thickness of the first substrate 10 is 0.25 to 2.5 mm, and the diameter of the inner periphery of the first frame 11 is 3 to 3. 30 mm, the diameter of the outer periphery of the first frame 11 can be set to 3.5 to 35 mm, and the diameter of the inner periphery of the second frame 12 can be set to 4.5 to 45 mm. The distance between the upper surface of the first frame 11 and the upper surface of the first substrate 10 is 0.5 to 5 mm, and the distance between the upper surface of the second frame 12 and the upper surface of the first substrate 10 is 0.25 to 2 mm. It can be set to 5 mm.

  The second electrode 2 has the same configuration as the first electrode 1. Specifically, the member corresponding to the first substrate 10 is the second substrate 20, the member corresponding to the first frame 11 is the third frame 21, and the member corresponding to the second frame 12 is the fourth frame 22. It is. The shape, material, and the like described in the description of the first electrode 1 can be used for each shape, material, and the like. The second electrode 2 is disposed on the upper surface side of the first electrode 1 so as to be separated from the first electrode 1 and face each other. The third frame body 21 is positioned such that the lower surface faces the upper surface of the first frame body 11. The fourth frame body 22 is positioned such that the lower surface faces the upper surface of the second frame body 12. In the present embodiment, the second electrode 2 is configured with the same shape and material as the first electrode 1, but is not limited thereto.

  The first electrode 1 and the second electrode 2 constitute a battery electrode 98.

  The first resin member 3 is provided between the electrical electrodes 98 in order to keep the power generating element 7 airtight. The first resin member 3 is located between the upper surface of the first frame body 11 and the lower surface of the third frame body 21. The first resin member 3 joins the first frame body 11 and the third frame body 21. The first resin member 3 is formed in an annular shape between the upper surface of the first frame 11 and the lower surface of the third frame 21, thereby holding the first electrode 1 and the second electrode 2 and generating power. The airtightness with respect to the element 7 can be maintained. As the 1st resin member 3, insulating resin materials, such as an epoxy resin, a phenol resin, or a furan resin, can be used, for example.

  As a dimension of the 1st resin member 3, thickness can be set to 0.25-2.5 mm, for example.

  The second resin member 4 is provided to hold the first electrode 1 and the second electrode 2. The second resin member 4 is filled between the first electrode 1 and the second electrode 2 in a region outside the outer periphery of the first resin member 3. The second resin member 4 has an annular shape when seen through the plane. The second resin member 4 is provided in contact with the outer peripheral surface of the first frame 11, the outer peripheral surface of the third frame 21, and the outer peripheral surface of the first resin member 3. Thereby, the airtightness with respect to the electric power generation element 7 can be improved.

  The second resin member 4 includes a region located between the first frame 11 and the second frame 12 on the upper surface of the first substrate 10 and the third frame 21 and the fourth of the lower surface of the second substrate 20. It is provided in contact with a region located between the frame body 22. Therefore, even when a force from above and below is applied to the first electrode 1 or the second electrode 2, the first electrode 1 and the second electrode 2 can be stably held. Thereby, durability of the battery 99 can be improved.

  Further, the second resin member 4 is provided so as to sandwich the inner and outer peripheral surfaces of the second frame 12 and the inner and outer peripheral surfaces of the fourth frame 22, respectively. Thus, the 1st electrode 1 and the 2nd electrode 2 can be fixed more firmly by forming the 2nd resin member 4 so that a plurality of surfaces may be touched. Thereby, even when a force is applied to the battery 99 from the outside, the first electrode 1 and the second electrode 2 can be stably held, so that the durability of the battery 99 can be further improved.

  As the 2nd resin member 4, insulating resin materials, such as an epoxy resin, a phenol resin, or a furan resin, can be used, for example.

In the battery 99 according to the embodiment of the present invention, the distance L2 between the upper surface of the second frame body 12 and the lower surface of the fourth frame body 22 is the distance between the upper surface of the first frame body 11 and the lower surface of the third frame body 21. Larger than L1. Therefore, the first resin member 3 and the second resin member 4 are easily deformed to the outer peripheral side of the battery 99 when pressure is applied to the battery 99 from above and below. Thereby, it can suppress that the 1st resin member 3 and the 2nd resin member 4 deform | transform into the center side of the battery 99. FIG. Accordingly, since it is not necessary to form the first resin member 3 and the second resin member 4 excessively wide, the power generation element 7 can be provided in a wide range. As a result, the capacity of the battery 99 can be increased.

  Preferably, the first resin member 3 has a larger elastic modulus than the second resin member 4. Thereby, the second resin member 4 is easily deformed to the outer peripheral side of the battery 99. Therefore, it is possible to further suppress the first resin member 3 and the second resin member 4 from being deformed toward the center of the battery 99.

  The adjustment of the elastic modulus of the first resin member 3 and the second resin member 4 can be performed by adjusting the amount of the additive, for example. Specifically, if the first resin member 3 and the second resin member 4 are made of an epoxy resin, the elastic modulus of the epoxy resin can be increased by adding a polymer having a flexible chain to a resin system such as rubber. Can be reduced.

  For comparison and measurement of elastic modulus, for example, a bending test (JIS R 1602) can be used. Moreover, when the magnitude | size and shape of the 1st resin member 3 or the 2nd resin member 4 are less than the specification of the said bending test, it can compare by the test based on this. Specifically, the first resin member 3 and the second resin member 4 are each processed into a rectangular parallelepiped having the same dimensions, and the square is placed on two fulcrums and a load is applied to one central point between the fulcrums. Add. Thereby, the amount of displacement generated in the square bar is compared, and the smaller amount of displacement can be regarded as having a higher elastic modulus.

  Moreover, when comparing smaller materials, the nanoindentation method can be used. As a measuring device, for example, “Nanoindenter G200” manufactured by Agilent can be used. The elastic modulus measured by this method is compared.

<Configuration of power generation elements>
The power generation element 7 is provided in the space surrounded by the first electrode 1, the second electrode 2, and the first resin member 3. The power generation element 7 includes a positive electrode material 71 provided on the positive electrode side, a negative electrode material 73 provided on the negative electrode side, a separator 72 provided to separate the positive electrode material 71 and the negative electrode material 73, and an electrolyte member sealed in the space. Has been. As the positive electrode material 71, for example, a positive electrode active material such as lithium cobaltate or lithium manganate, or a sheet-like member including a conductive material such as acetylene black or graphite can be used. As the negative electrode material 73, for example, a sheet-like member containing a carbon material such as coke or carbon fiber can be used. As the separator 72, a polyolefin porous film or the like can be used. As the electrolyte member, for example, a lithium salt such as lithium tetrafluoroborate or an acid such as hydrochloric acid, sulfuric acid or nitric acid dissolved in an organic solvent such as dimethoxyethane or propylene carbonate can be used.

  In addition, this invention is not limited to the above-mentioned embodiment, A various change, improvement, etc. are possible in the range which does not deviate from the summary of this invention. For example, in the present embodiment, the shape of the first substrate 10 and the second substrate 20 when viewed in plan is a circular shape, but may be a polygonal shape including an elliptical shape or a rectangular shape. In the present embodiment, the first substrate 10, the first frame 11, and the second frame 12 are integrally formed, but the first substrate 10, the first frame 11, and the second frame 12 are formed. May be formed of different materials. Moreover, in this embodiment, although the horizontal width of the 1st frame 11 and the horizontal width of the 3rd frame 21 are formed equally, it is not restricted to this. If the first frame body 11 and the third frame body 21 are disposed so as to face each other, for example, the lateral width of the first frame body 11 may be formed larger than the lateral width of the third frame body 21.

  In the present embodiment, the second substrate 20, the third frame body 21 and the fourth frame body 22 are integrally formed. However, the second substrate 20, the third frame body 21 and the fourth frame body 22 are integrally formed. May be formed of different materials.

  In the present embodiment, the angle of the inner peripheral surface of the second frame 12 with respect to the upper surface of the first substrate 10 and the angle of the inner peripheral surface of the fourth frame 22 with respect to the lower surface of the second substrate 20 are formed at 90 degrees. However, it may be an angle smaller than 90 degrees or an angle larger than 90 degrees. When the aforementioned angle is smaller than 90 degrees, the second resin member 4 and the second frame body 12 and the second resin member 4 and the fourth frame body 22 are formed so as to sandwich each other. 2 The resin member 4 and the 1st electrode 1 and the joining of the 2nd resin member 4 and the 2nd electrode 2 can be strengthened more. Moreover, when the above-mentioned angle is larger than 90 degree | times, since the 2nd resin member 4 can be provided over a wide range, the airtightness with respect to the electric power generation element 7 can be improved.

<Modification 1>
A first modification of the battery 99 will be described. In addition, in each structure of this example, about the member which has the structure and function similar to the above-mentioned battery 99, the same referential mark is attached | subjected and the detailed description is abbreviate | omitted.

  In the battery 99 according to the above-described embodiment, the cross sections of the second frame body 12 and the fourth frame body 22 are rectangular, but the present invention is not limited thereto. For example, as shown in FIG. 3, chamfered portions 81 may be formed at corners on the inner peripheral side of the second frame body 12 and the fourth frame body 22. Thereby, since the deformation of the second resin member 4 is not easily disturbed by the second frame body 12 and the fourth frame body 22, the second resin member 4 is removed from the battery 99 when pressure is applied to the battery 99 from above and below. 99 can be further easily deformed to the outer peripheral side.

<Modification 2>
A second modification of the battery 99 will be described. In addition, in each structure of this example, about the member which has the structure and function similar to the above-mentioned battery 99, the same referential mark is attached | subjected and the detailed description is abbreviate | omitted.

  In the battery 99 according to the above-described embodiment, the first substrate 10 is a flat plate member having a constant thickness, but is not limited thereto. For example, as shown in FIG. 4, the thickness of the region located between the first frame 11 and the second frame 12 in the first substrate 10 is the region located on the inner side of the first frame 11. It may be formed larger than the thickness. Thereby, since the quantity of the 2nd resin member 4 with which it fills can be reduced, when a pressure is applied to the battery 99 from the up-down direction, the deformation | transformation which arises in the 2nd resin member 4 can be suppressed. In FIG. 4, only the thickness of the first substrate 10 is changed as compared with the battery 99 described above, but is not limited thereto. Specifically, an area located between the third frame body 21 and the fourth frame body 22 in the second substrate 20 is formed to be thicker than an area located inside the third frame body 21. May be.

<Modification 3>
A third modification of the battery 99 will be described. In addition, in each structure of this example, about the member which has the structure and function similar to the above-mentioned battery 99, the same referential mark is attached | subjected and the detailed description is abbreviate | omitted.

In the battery 99 according to the above-described embodiment, the first substrate 10 is a flat plate member having a constant thickness, but is not limited thereto. For example, as shown in FIG. 5, the thickness of the region located between the first frame body 11 and the second frame body 12 in the first substrate 10 is the region located inside the first frame body 11. It may be formed smaller than the thickness. Thereby, the area | region where the 2nd resin member 4 with which it fills contacts the 1st electrode 1 can be enlarged. Thereby, the 1st electrode 1 and the 2nd resin member 4 can be adhered more firmly. In FIG. 5, only the thickness of the first substrate 10 is changed as compared with the battery 99 described above, but is not limited thereto. In particular,
An area located between the third frame body 21 and the fourth frame body 22 in the second substrate 20 may be formed with a smaller thickness than an area located inside the third frame body 21. .

<Modification 4>
A fourth modification of the battery 99 will be described. In addition, in each structure of this example, about the member which has the structure and function similar to the above-mentioned battery 99, the same referential mark is attached | subjected and the detailed description is abbreviate | omitted.

  In the battery 99 according to the above-described embodiment, the widths of the first frame body 11 and the third frame body 21 are constant, but the present invention is not limited to this. For example, as shown in FIG. 6, a flange 82 may be formed at the lower end of the first frame 11 and the upper end of the third frame 21. Thereby, the intensity | strength of the 1st frame 11 and the 3rd frame 21 can be improved, keeping the space where the electric power generation element 7 is enclosed wide.

<Modification 5>
A modification 5 of the battery 99 will be described. In addition, in each structure of this example, about the member which has the structure and function similar to the above-mentioned battery 99, the same referential mark is attached | subjected and the detailed description is abbreviate | omitted.

  In the battery 99 according to the above-described embodiment, only the power generation element 7 is provided inside the first frame body 11 and the third frame body 21, but is not limited thereto. For example, as shown in FIG. 7, a reinforcing member 83 arranged so as to be in contact with the first electrode 1 and the second electrode 2 may be provided inside the first frame body 11. Thus, by providing the reinforcing member 83, the first electrode 1 and the second electrode 2 can be held more firmly. As the reinforcing member 83, for example, a cylindrical member can be used. For the reinforcing member 83, for example, a ceramic material such as alumina or a resin material such as epoxy resin can be used.

<Battery manufacturing method 1>
First, the manufacturing process of the 1st electrode 1 and the 2nd electrode 2 is demonstrated. First, the first electrode 1 is produced. First, the first substrate 10 and the first frame 11 are produced by press molding, and the second frame 12 is formed by bending the first substrate 10. Next, the first electrode 1 is manufactured by bonding the first frame 11 to the first substrate 10. The second electrode 2 is also produced by the same method as the first electrode 1.

  Next, the surfaces of the first frame body 11, the second frame body 12, the third frame body 21, and the fourth frame body 22 are roughened by performing a chemical etching process or a sandblasting process. Furthermore, ultra fine irregularities are formed by applying the following aqueous solution dipping method.

  Here, the aqueous solution immersion method will be described. When the first frame 11, the second frame 12, the third frame 21, and the fourth frame 22 are made of aluminum, the following method can be used. An aqueous ammonia solution is used as the aqueous solution. The immersion conditions are about 5 to 30 minutes at room temperature. The concentration of ammonia can be set to 10 to 30 mol%. After soaking with these aqueous solutions, they are washed with water and dried. By immersing aluminum in an aqueous ammonia solution, aluminum is dissolved as aluminate ions while foaming hydrogen. Thereby, an ultrafine unevenness | corrugation can be formed. The ultra-fine irregularities are formed in order to improve the bondability between the epoxy resin and the first electrode 1 or the epoxy resin and the second electrode 2 by allowing the epoxy resin to penetrate therebetween.

Next, the positive electrode material 71, the negative electrode material 73, and the separator 72 are disposed in a region surrounded by the first frame 11 on the upper surface of the first electrode 1. Thereafter, an epoxy resin is applied to the upper surface of the first frame 11, the second electrode 2 is disposed on the upper part of the ceramic member, and then the epoxy resin is cured to form the first resin member 3.

  Next, the outer peripheral surface of the first frame 11, the inner peripheral surface, the upper surface and the outer peripheral surface of the second frame body 12, the outer peripheral surface of the third frame body 21, and the fourth frame body 22, which are formed with ultra-fine irregularities. An epoxy resin is applied to the inner peripheral surface, the lower surface and the outer peripheral surface, and the epoxy resin is infiltrated between the ultra-fine irregularities. Thereafter, an epoxy resin is filled between the first electrode 1 and the second electrode 2 in a region outside the outer periphery of the first resin member 3, and the second resin member 4 is formed by curing the epoxy resin. .

  In addition, it is preferable to contain the powder of the magnitude | size which can be penetrated into this super fine unevenness | corrugation in the epoxy resin to penetrate. Thereby, when an epoxy resin hardens | cures, the anchor effect produced between an epoxy resin and an unevenness | corrugation can be enlarged more. As a result, the bonding between the second resin member 4 and the first electrode 1 or the second electrode 2 can be further strengthened. As the powder, for example, an inorganic material such as silicon oxide can be used.

  Thereafter, the electrolyte member is sealed from the through holes 5 of the first electrode 1 and the second electrode 2. Finally, the through hole 5 is sealed with the sealing material 6. In this way, the battery 99 can be manufactured.

<Battery manufacturing method 2>
The manufacturing method 2 of the battery 99 will be described. In addition, in this manufacturing method, the detailed description is abbreviate | omitted about the process similar to the above-mentioned manufacturing method 1. FIG.

  In the manufacturing method 1 of the battery 99 described above, the first resin member 3 is formed after the first frame body 11 and the first substrate 10 are joined. However, the present invention is not limited to this.

  Specifically, the battery 99 can be manufactured by the following method. First, the first frame body 11 and the third frame body 21 are joined and integrated via the first resin member 3. Next, an integrated body of the first frame body 11, the third frame body 21, and the first resin member 3 is disposed on the upper surface of the first substrate 10 on which the second frame body 12 is formed, and is surrounded by these members. The positive electrode material 71, the negative electrode material 73, and the separator 72 are disposed in the region. Thereafter, the second substrate 20 on which the fourth frame body 22 is formed is disposed on the upper surface of the third frame body 21, and then the second resin member 4 is formed. Thereafter, the electrolyte member is sealed from the through holes 5 of the first electrode 1 and the second electrode 2. Finally, the through hole 5 is sealed with the sealing material 6. In this way, the battery 99 can be manufactured.

1: First electrode 10: First substrate 11: First frame 12: Second frame 2: Second electrode 20: Second substrate 21: Third frame 22: Fourth frame 3: First resin member 4: Second resin member 5: Through hole 6: Sealing material 7: Power generation element 71: Positive electrode material 72: Separator 73: Negative electrode material 81: Chamfered portion 82: Eaves portion 83: Reinforcing member 9: Battery package 98: Battery Electrode 99: battery

Claims (3)

A first electrode having a first substrate, a first frame provided on an upper surface of the first substrate, and a second frame provided so as to surround the first frame;
A second frame, a third frame provided on a lower surface of the second substrate, and a fourth frame provided so as to surround the third frame, the upper surface of the first frame and the third frame A second electrode positioned above the first electrode such that the lower surface of the frame body and the upper surface of the second frame body and the lower surface of the fourth frame body face each other;
An annular first resin member that is located between the upper surface of the first frame and the lower surface of the third frame and joins the first frame and the third frame;
An annular second resin member filled between the first electrode and the second electrode in a region outside the outer periphery of the first resin member;
A power generation element provided in a space surrounded by the first electrode, the second electrode, and the first resin member and electrically connected to the first electrode and the second electrode;
The battery, wherein an interval between an upper surface of the second frame and a lower surface of the fourth frame is larger than an interval between the upper surface of the first frame and the lower surface of the third frame.   The battery according to claim 1, wherein the first resin member has a larger elastic modulus than the second resin member. A first electrode having a first substrate, a first frame provided on an upper surface of the first substrate, and a second frame provided so as to surround the first frame;
A second frame, a third frame provided on a lower surface of the second substrate, and a fourth frame provided so as to surround the third frame, the upper surface of the first frame and the third frame A lower surface of the frame body, and a second electrode used to be positioned above the first electrode so that the upper surface of the second frame body and the lower surface of the fourth frame body face each other,
When the upper surface of the first frame and the lower surface of the third frame are opposed to the upper surface of the second frame and the lower surface of the fourth frame, respectively, the upper surface of the second frame And the lower surface of the fourth frame body is larger than the distance between the upper surface of the first frame body and the lower surface of the third frame body.

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