WO2016017048A1 - Bloc-batterie - Google Patents

Bloc-batterie Download PDF

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Publication number
WO2016017048A1
WO2016017048A1 PCT/JP2015/001935 JP2015001935W WO2016017048A1 WO 2016017048 A1 WO2016017048 A1 WO 2016017048A1 JP 2015001935 W JP2015001935 W JP 2015001935W WO 2016017048 A1 WO2016017048 A1 WO 2016017048A1
Authority
WO
WIPO (PCT)
Prior art keywords
output
tab
battery pack
laminated
curved portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2015/001935
Other languages
English (en)
Japanese (ja)
Inventor
大輔 西田
和明 福留
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of WO2016017048A1 publication Critical patent/WO2016017048A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/202—Casings or frames around the primary casing of a single cell or a single battery
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/105—Pouches or flexible bags
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/593—Spacers; Insulating plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
    • H01M50/595—Tapes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a battery pack formed by connecting a circuit board to a laminated battery.
  • the battery pack of the laminated battery has a circuit board on which electronic components such as a protective circuit are mounted on the output tab of the laminated battery.
  • the laminated battery arrange
  • An output tab is connected to the positive and negative electrodes, and the output tab is pulled out to the outside from an output laminated portion in which an exterior film is laminated and welded and hermetically sealed.
  • the output tab is bent in a U shape and connected to the circuit board disposed in the output stacking portion.
  • the battery pack of Patent Document 1 is a temperature element in which an output tab 26 drawn out from the output laminated portion 24 is bent in a U shape and its tip is fixed to the circuit board 22. 28 is connected.
  • this battery pack is made of strong aramid resin and has a U-shape with a predetermined thickness (about 0.1 mm) as shown in the sectional view of FIG. It is necessary to arrange the insulating plate 20. Further, the insulating plate 20 needs to be bonded with an insulating tape 25 having a thickness of about 0.05 mm along both edges.
  • the battery pack having this structure can insulate the U-curved portion 29 of the output tab with the insulating plate 20, there is a drawback that the outer shape is increased by the insulating plate 20.
  • the insulating plate 20 since the insulating plate 20 has a predetermined thickness, the insulating plate 20 cannot be bent at a right angle with a small radius of curvature, and is bent with a predetermined radius of curvature, so There is a drawback that the width of the battery pack is widened to increase the outer shape of the battery pack.
  • the battery pack has a drawback that when the aluminum foil laminated inside the exterior film 23 comes into contact with something and has a potential, hydrogen is generated and swells.
  • the electric potential causes the aluminum foil to be eroded by moisture that permeates through the film layer on the surface, thereby generating a pinhole. This is because.
  • it is important to reliably prevent contact between the aluminum foil of the exterior film 23 and the output tab.
  • the laminated battery 21 becomes the cut surface 23A of the laminated outer film 23 at the outer peripheral edge of the output laminated portion 24. Therefore, the aluminum foil of the outer film 23 is linear on the cut surface 23A. Is exposed.
  • the present invention was developed for the purpose of solving the above drawbacks of the conventional battery pack.
  • An important object of the present invention is to provide a battery pack that can insulate the U-curved portion of the output tab without using a U-shaped insulating plate, and can reduce both the outer shape and thickness to reduce the volume. It is in.
  • Another important object of the present invention is to provide a battery pack that can reliably insulate an output tab while reducing both manufacturing cost and component cost.
  • Another important object of the present invention is to provide a laminated battery capable of improving safety by reliably preventing contact between the aluminum foil of the exterior film and the output tab.
  • the battery pack of the present invention includes a laminated battery 1 and a circuit board 2.
  • electrodes are disposed between the facing exterior films 3.
  • positive and negative output tabs 6 are arranged between the facing exterior films 3.
  • An insulating resin tab 5 is disposed between the output tab 6 and the exterior film 3, and the output tab 6 is pulled out from the output laminated portion 4A in an airtight state.
  • the output tab 6 is electrically connected to the circuit board 2.
  • the output tab 6 protruding from the edge of the output laminated portion 4A is bent by the first U-curved portion 9A and is electrically connected to the circuit board 2.
  • the resin tab 5 is long enough to cover the first U-curved portion 9A, and the first U-curved portion 9A is covered with the resin tab 5 for insulation.
  • the circuit board 2 is arranged in a posture parallel to the output lamination part 4A of the laminated battery 1, and the output tab 6 is arranged on the circuit board 2 side from the first U-curved part 9A.
  • the second U-curved portion 9B is provided, and the entire shape can be bent into an S shape by the first U-curved portion 9A and the second U-curved portion 9B.
  • the battery pack of the present invention can have a length that allows the resin tab 5 to cover the output tab 6 between the first U-curved portion 9A and the second U-curved portion 9B.
  • the battery pack of the present invention can electrically connect the output tab 6 and the circuit board 2 via the U-bent lead plate 7.
  • the battery pack of the present invention can be provided with the insulating plate 11 inserted between the output tabs 6 facing the first U-curved portion 9A. Further, the battery pack of the present invention is provided with an insulating tape 12 that covers the side edge of the output laminated portion 4A, and the circuit board 2 and the output tab 6 are arranged inside the insulating tape 12, and the insulating tape 12 is provided. Thus, the output tab 6 and the outside of the circuit board 2 can be insulated.
  • the battery packs described above are characterized in that the U-curved portion of the output tab can be insulated without using a U-shaped insulating plate, and the volume can be reduced by reducing both the outer shape and the thickness.
  • the above battery pack extends the length of the resin tab covering and insulating the surface of the output tab, insulates the U-curved portion of the output tab, and insulates the U-curved portion with the resin tab. It is.
  • the surface of the output tab is insulated by the resin tab, it is not necessary to arrange a U-shaped insulating plate in order to insulate the U-curved portion of the output tab as in the prior art.
  • Battery packs that can insulate the U-curved portion of the output tab without providing a U-shaped insulating plate use a U-shaped insulating plate, so that the outer shape does not increase, and the U-shaped insulation It realizes the feature that the outer shape can be made small without increasing the thickness by stacking the plates.
  • the above battery pack also realizes a feature that can reliably insulate the output tab while reducing both manufacturing cost and component cost. This is because the cost of parts can be reduced by not using a U-shaped insulating plate, and the manufacturing cost can be reduced because the process of bonding with two insulating tapes is simplified.
  • the above battery pack is characterized in that it can prevent the contact between the aluminum foil of the exterior film and the output tab without fail, thereby improving safety.
  • the laminated battery described above is insulated by covering the U-curved portion of the output tab with a resin tab.
  • this battery pack there is a resin tab between the output tab and the aluminum foil exposed at the cut edge of the output laminated portion, and this resin tab prevents the exposed portion of the aluminum foil from contacting the output tab.
  • FIG. It is a perspective view of the battery pack concerning the Example of this invention. It is a disassembled perspective view of the battery pack shown in FIG. It is a cross-sectional view of the output lamination
  • Laminate battery 1 to 3 includes a laminated battery 1 and a circuit board 2.
  • Laminate battery 1 has electrodes (not shown) arranged between facing outer covering films 3, and the outer film 3 is laminated and joined outside the electrodes, and the electrodes are built inside. ing.
  • the laminate battery 1 is a lithium laminate battery.
  • the present invention does not specify a laminated battery as a lithium laminated battery.
  • the laminate battery may be any laminate battery that can be charged.
  • the laminated battery 1 shown in the figure has a rectangular outer shape, and the exterior film 3 is laminated on three sides including one side on the output tab 6 side and two sides on both sides thereof to form a laminated adhesive portion 4.
  • the laminated adhesion part 4 airtightly joins the two exterior films 3 by a method such as adhesion or welding.
  • Laminate battery 1 has one exterior film 3 folded at one side of the electrode to cover both sides of the electrode. Since the laminated battery 1 having this structure folds the exterior film 3 along one side of the electrode, the laminated adhesive portion 4 is not provided on one side of the quadrangle, and the laminated adhesive portion 4 is provided on the three sides of the electrode.
  • the laminated battery may have a structure in which laminated adhesive portions are provided on the outer periphery of the four sides.
  • This laminated battery is manufactured by stacking two separated exterior films on both sides of an electrode and bonding them at a laminated adhesive portion on four sides around the electrode.
  • the laminated battery 1 shown in the figure has an exterior film 3 laminated on the lower surface of the electrode in a flat or nearly flat shape, and the exterior film 3 laminated on the upper surface of the electrode is bent downward along the periphery of the electrode. Then, the laminated adhesive part 4 is formed by laminating and bonding to the exterior film 3 on the lower surface.
  • the laminated battery 1 in FIG. 2 has an output laminated portion 4A on one side of the outer periphery.
  • the output laminated portion 4A is one of the laminated adhesive portions 4 and pulls out the output tab 6 connected to the electrode to the outside.
  • the output laminated portion 4A is located on both surfaces of the electrode, that is, in a plane parallel to the facing surface of the laminated battery 1.
  • the laminated battery 1 shown in the figure has an output laminated portion 4A provided on the bottom side of the electrode in the figure.
  • the laminated battery 1 shown in the figure is provided with a folded laminated adhesive portion 4B connected to both sides of the output laminated portion 4A.
  • the folded laminated adhesive portion 4B is provided by being bent 90 degrees along the side surface of the electrode.
  • the width of the bent laminated adhesive portion 4B is made substantially equal to the thickness of the electrode so as not to protrude from the upper surface.
  • the laminate battery 1 is provided with positive and negative output tabs 6 on the output laminate portion 4A.
  • the positive and negative output tabs 6 are thin metal plates and are connected to the positive and negative electrodes inside the exterior film 3.
  • the output tab 6 is disposed between the facing exterior films 3 in the output laminated portion 4A, and is drawn out to the outside.
  • the resin tab 5 is arranged between the output tab 6 and the exterior film 3.
  • the resin tab 5 is a band wider than the output tab 6 and is bonded to both sides of the output tab 6 to cover both sides of the output tab 6.
  • the resin tab 5 is a film of a thermoplastic resin such as modified polyethylene, and is sandwiched between the output tab 6 and the exterior film 3, and the output tab 6 is pulled out from the output laminated portion 4A to the outside in an airtight state.
  • the resin tab 5 may be provided only in the output laminated portion 4A.
  • the resin tab 5 is elongated along the output tab 6 drawn out from the output laminated portion 4A.
  • the resin tab 5 covers the U-curved portion 9 (first U-curved portion 9A) of the output tab 6.
  • This resin tab 5 seals between the output tab 6 and the exterior film 3 in an airtight state in the output laminated portion 4A, and further, a U-curved portion 9 (the first curved portion 9) of the output tab 6 pulled out from the output laminated portion 4A.
  • the surface of the U-curved portion 9A) is covered and insulated.
  • the resin tab 5 used for sealing the output tab 6 between the exterior films 3 in an airtight state is lengthened, and the U-curved portion 9 of the output tab 6 drawn out of the exterior film 3 is provided. It is used together for insulation of (first U-curved portion 9A).
  • the “U music” means that the output tab 6 is folded back about 180 degrees as shown in FIG. The folding place often has a bend R, but when there is no bend R, it is also referred to as a “U-curve”.
  • the output tab 6 is electrically connected to the circuit board 2 at the tip.
  • the output tab 6 is directly connected to the circuit board 2 or is electrically connected to the circuit board 2 via a current-carrying component.
  • the output tab 6 is connected to the circuit board 2 via the protective element 8 and the lead plate 7.
  • the lead plate 7 is connected to the circuit board 2 by a method such as soldering or welding.
  • one lead plate 7 is connected to a protective element 8 such as PTC.
  • one output tab 6 is connected to the circuit board 2 via the protective element 8 and the lead plate 7, and the other output tab 6 is connected to the circuit board via the lead plate 7. 2 is connected.
  • the output tab 6 is provided with a U-shaped portion 9 in a state of being connected to the circuit board 2.
  • the battery pack shown in the cross-sectional view of FIG. 3 is provided with two U-curved portions 9 on the output tab 6, and the tip is connected to the circuit board 2 via a protective element and a lead plate 7.
  • the output tab 6 in FIG. 3 is provided with a first U-curved portion 9A by U-curving a portion protruding from the end edge of the output laminated portion 4A, and the circuit board 2 side is further U-shaped than the first U-curved portion 9A.
  • a second U-shaped portion 9B is provided by bending.
  • the circuit board 2 is arranged on the output stacking portion 4A of the laminate battery 1 in a posture parallel to the output stacking portion 4A.
  • the output tab 6 is bent 180 degrees (U-curved) at two locations of the first U-curved portion 9A and the second U-curved portion 9B, and the entire shape is bent into an S-shape.
  • the resin tab 5 covers the first U-curved portion 9A located on the output laminated portion 4A side with respect to the second U-curved portion 9B.
  • the second U-curved portion 9 ⁇ / b> B is not covered with the resin tab 5, and its tip portion is electrically connected to the circuit board 2.
  • the “S-shape” is formed by connecting two U-curved portions facing in opposite directions, and a shape that is horizontally reversed from the “S” shape is also an “S-shape”. .
  • the resin tab 5 has a length that extends between the first U-curved portion 9A and the second U-curved portion 9B, and covers and insulates only the surface of the first U-curved portion 9A. In the manufacturing process, a manufacturing error occurs in the length of the resin tab 5 and the position of the U-curved portion 9. Therefore, it is very difficult to accurately control the tip position of the resin tab 5. If the resin tab 5 is too long and covers the tip of the output tab 6, it cannot be reliably connected to the circuit board 2, the lead plate 7, or the protection element 8.
  • the tip of the resin tab 5 is disposed between the first U-curved portion 9A and the second U-curved portion 9B. Therefore, even if there is a slight manufacturing error in the length of the resin tab 5 and the position of the tip of the resin tab 5 is shifted, the tip is between the first U-curved portion 9A and the second U-curved portion 9B.
  • the output tab 6 can be reliably electrically connected to the circuit board 2 and can be insulated by covering the first U-curved portion 9 ⁇ / b> A with the resin tab 5. That is, there is a feature that the output tab 6 can be reliably electrically connected to the circuit board 2 and the U-curved portion of the output tab 6 can be reliably insulated without requiring high processing accuracy in the manufacturing process.
  • the circuit board 2 is arranged on the output laminated portion 4A without protruding outside the output laminated portion 4A.
  • the circuit board 2 has a thin metal plate output lead 10 fixed to the surface.
  • the circuit board 2 shown in FIGS. 2 and 3 has an output lead 10 fixed to the lower surface in the figure.
  • the circuit board 2 is mounted with an electronic component 14 that realizes a protection circuit for the laminated battery 1.
  • the protection circuit is a circuit that controls the charge / discharge current to prevent the laminate battery 1 from being overcharged or overdischarged, a circuit that detects the overcurrent and interrupts the current, and the current that is supplied when the laminated battery 1 reaches an abnormally high temperature. A circuit that shuts off.
  • the circuit board 2 has an elongated rectangular shape with a width that does not protrude outward from the tip of the first U-curved portion 9A of the output tab 6 and a length that does not protrude from the width of the output stacked portion 4A.
  • an insulating plate 11 having an L-shaped cross-section is disposed in the output stacking portion 4A.
  • the insulating plate 11 is made of an insulating material such as aramid resin, and the L-shaped long side end is inserted between the first U-curved portions 9A of the output tab 6 to insulate the back surface of the circuit board 2. That is, the L-shaped insulating plate 11 is between the output laminated portion 4A and the output tab 6 and faces the portion between the first U-curved portion 9A and the second U-curved portion 9B. It arrange
  • the insulating tape 12 is bonded so as to cover the circuit board 2 and the output laminated portion 4A.
  • the insulating tape 12 is a tape having a thickness of about 0.05 mm in which an adhesive layer is provided on one side of an insulating material such as polyimide.
  • the insulating tape 12 is bonded so as to cover one side of the rectangular battery pack, that is, one side where the output laminated portion 4A of the laminated battery 1 is provided.
  • the insulating tape 12 has one side bonded to the upper surface of the laminated battery 1 and the other side bonded to the lower surface of the laminated battery 1, and in the bonded state, the insulating tape 12 has a groove shape as shown in the exploded perspective view of FIG. .
  • the circuit board 2 and the output tab 6 are arranged inside the groove-shaped insulating tape 12, and the insulating tape 12 insulates the output tab 6 and the outside of the circuit board 2.
  • one insulating tape 12 is bonded so as to extend from the upper surface to the lower surface of the laminated battery 1 to insulate one side of the output laminated portion 4A.
  • the above output lead 10 protrudes from a through hole 12 ⁇ / b> A provided with an insulating tape 12.
  • the other output lead 10 has an insulating tape 1 as shown by a chain line in FIG. 2 is pulled out from one end.
  • the insulating tape 13 is adhered from the upper surface to the lower surface so as to cover the folded laminated adhesive portions 4B on both sides of the laminated battery 1, and the label 15 is adhered to the surface of the laminated battery 1. ing.
  • the above battery pack is assembled in the following steps as shown in FIGS. 1.
  • the insulating tape 13 is attached to both sides of the laminated battery 1, and the label 15 is attached to the surface.
  • a protective element 8 such as PTC is connected to one output tab 6 by spot welding.
  • the output tab 6 of the laminate battery 1 is connected to the circuit board 2 via the lead plate 7.
  • the circuit board 2 is connected by soldering a pair of lead plates 7 bent in an L shape.
  • the laminated battery 1 is connected to the circuit board 2 by spot welding the protective element 8 connected to one output tab 6 to one lead plate 7 and spot welding the other output tab 6 to the other lead plate 7.
  • the 4 shows in FIGS.
  • the lead plate 7 connected to the circuit board 2 is bent 90 degrees. 5.
  • a position near the boundary between the lead plate 7 connected to the circuit board 2 and the protective element 8 at the tip of the output tab 6 is a U-curve. To do. 6).
  • the base portion of the output tab 6 is bent in a U-shape, and the circuit board 2 is disposed on the output stacking portion 4A. 7).
  • the insulating tape 12 is attached to one side where the output laminated portion 4A is provided.
  • the insulating tape 12 is provided with a through hole 12A, and the output lead 10 is inserted into the through hole 12A and protrudes to the outside.
  • the other output lead 10 is drawn out from one end of the insulating tape 12 as indicated by a chain line in FIG.
  • the output tab 6 is U-curved by the first U-curved portion 9A and the second U-curved portion 9B so that the overall shape is S-shaped, and the tip is further Although it is assumed that it is connected to the circuit board 2 via the lead plate 7, the output tab 6 is U-curved at the first U-curved portion 9A as shown in FIG. The tip of the output tab 6 may be connected to the circuit board 2 via the lead plate 7. Further, as shown in FIG. 7, the output tab 6 may be U-curved at the first U-curved portion 9 ⁇ / b> A so that the entire shape is U-shaped, and the tip of the output tab 6 may be directly connected to the circuit board 2. Good. Furthermore, as shown in FIG. 8, the output tab 6 is U-curved by the first U-curved portion 9 ⁇ / b> A and the second U-curved portion 9 ⁇ / b> B so that the overall shape is S-shaped. The circuit board 2 may be directly connected to the tip.
  • the battery pack of the present invention is built in a portable device such as a smartphone or a tablet and used safely.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

Selon la présente invention, une carte de circuit imprimé (2) est connectée électriquement directement, ou par l'intermédiaire d'une partie conductrice, à une patte de sortie (6) d'une batterie stratifiée (1), et la carte de circuit imprimé est connectée électriquement. La patte de sortie (6) de la batterie stratifiée (1) est courbée en U et connectée électriquement à la carte de circuit imprimé (2). Une patte en résine (5) de la batterie stratifiée (1) est déployée, et une première partie coudée en U (9A) de la patte de sortie (6) est recouverte et isolée. Grâce à cette configuration, la partie coudée en U de la patte de sortie est isolée et son volume est réduit sans utiliser de plaque isolante en C, et la sécurité est ainsi améliorée à bas coût.
PCT/JP2015/001935 2014-08-01 2015-04-07 Bloc-batterie Ceased WO2016017048A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014158036A JP2017168183A (ja) 2014-08-01 2014-08-01 電池パック
JP2014-158036 2014-08-01

Publications (1)

Publication Number Publication Date
WO2016017048A1 true WO2016017048A1 (fr) 2016-02-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/001935 Ceased WO2016017048A1 (fr) 2014-08-01 2015-04-07 Bloc-batterie

Country Status (2)

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JP (1) JP2017168183A (fr)
WO (1) WO2016017048A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
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CN118369761A (zh) * 2022-12-22 2024-07-19 新唐科技日本株式会社 蓄电包、半导体装置以及半导体装置的制造方法
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CN117199736A (zh) * 2023-11-03 2023-12-08 宁德时代新能源科技股份有限公司 电池单体、电池以及用电装置
CN117199736B (zh) * 2023-11-03 2024-03-22 宁德时代新能源科技股份有限公司 电池单体、电池以及用电装置
JP2025144504A (ja) * 2024-03-19 2025-10-02 三星エスディアイ株式会社 バッテリーパック
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