WO2022097918A1 - 이차 전지 - Google Patents
이차 전지 Download PDFInfo
- Publication number
- WO2022097918A1 WO2022097918A1 PCT/KR2021/013266 KR2021013266W WO2022097918A1 WO 2022097918 A1 WO2022097918 A1 WO 2022097918A1 KR 2021013266 W KR2021013266 W KR 2021013266W WO 2022097918 A1 WO2022097918 A1 WO 2022097918A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sealing
- case
- electrode assembly
- sealing part
- secondary battery
- 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
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Classifications
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- 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
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- 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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
-
- 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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/121—Organic material
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- 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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
-
- 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
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
- H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
-
- 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
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/171—Lids or covers characterised by the methods of assembling casings with lids using adhesives or sealing agents
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- 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
- H01M50/183—Sealing members
- H01M50/184—Sealing members characterised by their shape or structure
-
- 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
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
-
- 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
- H01M50/183—Sealing members
- H01M50/19—Sealing members characterised by the material
- H01M50/193—Organic material
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
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- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/20—Pressure-sensitive devices
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- 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 secondary battery, and more particularly, to a secondary battery having improved safety in the form of a pouch.
- Secondary batteries are attracting a lot of attention as an energy source for power devices, such as electric magnetrons, electric vehicles, and hybrid electric vehicles, as well as mobile devices such as cell phones, digital cameras, and notebook computers.
- a small battery pack in which one battery cell is packed is used for small devices such as mobile phones and cameras, but a battery pack in which two or more battery cells are connected in parallel and/or in series is used in mid- to large-sized devices such as notebook computers and electric vehicles. Packed medium or large battery packs are used.
- the secondary battery has a high demand for a prismatic secondary battery and a pouch-type secondary battery that can be applied to products such as mobile phones with a thin thickness in terms of shape.
- a prismatic lithium secondary battery it is advantageous to protect the electrode assembly from external impact, and while the injection process is easy, it is difficult to reduce the volume because the shape is fixed.
- a pouch-type lithium secondary battery there are no restrictions on shape and size, so it is suitable for manufacturing thin cells, easy assembly through thermal fusion, and easy to release gas or liquid when abnormal behavior occurs. It has a high advantage.
- This swelling phenomenon may cause a high pressure inside the sealed battery case, further promote the decomposition of the electrolyte may further lead to the explosion of the battery cell.
- the central portion of the battery case swells due to the gas, which causes a shape deformation of the battery cell, and thus has a problem in that it may cause an electrical short.
- Embodiments are to provide a secondary battery capable of preventing explosion by safely discharging gas in an intended direction even when a large amount of gas is generated inside the pouch-type secondary battery.
- a secondary battery includes an electrode assembly and a pouch case in which the electrode assembly is embedded, wherein the pouch case includes a first case portion having a first receiving portion in which a part of the electrode assembly is embedded, and the electrode and a second case part having a second accommodating part in which the remaining part of the assembly is accommodated, wherein the first case part and the second case part contact each other at an edge part surrounding the first and second accommodating parts, and at least the edge part It is sealed by a sealing part formed in a band shape in a portion, and the sealing part includes a first sealing part having a first width and a second sealing part having a second width smaller than the first width, and the second sealing part
- the longitudinal center portion coincides with the center portion of the long side of the electrode assembly.
- the sealing part may include a first inclined part connecting the first sealing part and the second sealing part and having a shape inclined toward the electrode assembly from the outside of the pouch case, and the first sealing part and the second sealing part It may further include a second inclined part connecting the parts and having a shape inclined toward the outside of the pouch case from the electrode assembly.
- a length of the first inclined portion may be longer than a length of the second inclined portion.
- the second width may be 1/4 or less of the first width.
- the width of the edge portion may be constantly maintained at a location where the first sealing part is positioned and a location where the second sealing part is positioned.
- the first case part and the second case part each include a base layer, a metal layer, and a sealing layer, and the sealing part is integrally formed by thermally fusion of the sealing layer of the first case part and the sealing layer of the second case part. It can be an area.
- the sealing layer may include a thermoplastic resin.
- the electrode assembly may include a pair of long sides facing each other, and the second sealing part may be positioned only in correspondence with any one of the pair of long sides.
- the electrode assembly may include a pair of long sides facing each other, and the second sealing part may be positioned to correspond to both long sides of the pair of long sides.
- the second sealing part may act as a vent part for gas generated when thermal runaway occurs inside the pouch case.
- the battery module according to another embodiment of the present invention may include the secondary battery described above.
- the pouch-type secondary battery even if a large amount of gas is generated inside, it is possible to prevent explosion by inducing the gas to be safely discharged in an intended direction, so it is possible to provide a secondary battery with improved safety.
- FIG. 1 is an exploded perspective view illustrating a secondary battery according to an embodiment of the present invention.
- FIG. 2 is a view showing a state in which the secondary battery of FIG. 1 is assembled.
- FIG. 3 is an enlarged cross-sectional view of part A of FIG. 2 .
- FIG. 4 is a diagram schematically illustrating the secondary battery of FIG. 2 when viewed from the front.
- FIG. 5 is a cross-sectional view taken along line B-B' of FIG. 2 .
- FIG. 7 is a diagram schematically illustrating a secondary battery according to another embodiment of the present invention when viewed from the front.
- a part of a layer, film, region, plate, etc. when a part of a layer, film, region, plate, etc. is said to be “on” or “on” another part, it includes not only cases where it is “directly on” another part, but also cases where there is another part in between. . Conversely, when we say that a part is “just above” another part, we mean that there is no other part in the middle.
- the reference part means to be located above or below the reference part, and to necessarily mean to be located “on” or “on” in the direction opposite to gravity not.
- planar it means when the target part is viewed from above, and "cross-sectional” means when viewed from the side when a cross-section of the target part is vertically cut.
- FIG. 1 is an exploded perspective view showing a secondary battery according to an embodiment of the present invention
- FIG. 2 is a view showing an assembled state of the secondary battery of FIG. 1
- FIG. 3 is an enlarged cross-sectional view of part A of FIG.
- FIG. 4 is a schematic diagram illustrating the secondary battery of FIG. 2 as viewed from the front
- FIG. 5 is a cross-sectional view taken along line B-B' of FIG. 2 .
- the secondary battery 10 includes a pouch case 100 and an electrode assembly 200 .
- the pouch case 100 includes a first case unit 110 and a second case unit 120 .
- 1 shows that the first case part 110 and the second case part 120 are connected to each other and are integrally formed, but the first case part 110 and the second case part 120 may be separated from each other.
- the shape of the pouch case 100 is not limited to that illustrated in FIG. 1 , and any shape is possible as long as it has a shape capable of accommodating and sealing the electrode assembly 200 .
- the electrode assembly 200 may be configured in a form in which a positive electrode plate and a negative electrode plate are disposed with a separator interposed therebetween.
- the electrode assembly 200 may have a structure in which one positive electrode plate and one negative electrode plate are wound with a separator interposed therebetween, or a structure in which a plurality of positive electrode plates and a plurality of negative electrode plates are stacked with a separator interposed therebetween.
- These positive and negative plates may be formed in a structure in which an active material slurry is applied to an electrode current collector, respectively, and the slurry is typically formed by stirring an active material, a conductive material, a binder, a plasticizer, etc. in a state in which a solvent is added.
- the electrode assembly 200 there may be an uncoated region to which the slurry is not applied to the electrode plate, and an electrode tab corresponding to each electrode plate may be formed in the uncoated region.
- the positive electrode tab 310 may be attached to the positive electrode plate of the electrode assembly 200
- the negative electrode tab 410 may be attached to the negative electrode plate of the electrode assembly 200 .
- the positive electrode tab 310 and the negative electrode tab 410 are electrically connected to the positive electrode lead 320 and the negative electrode lead 420 to form electrode terminals 300 and 400 .
- the positive lead 320 and the negative lead 420 may be drawn out of the pouch case 100 .
- the first case part 110 and the second case part 120 of FIG. 1 include a first accommodating part 110s and a second accommodating part 120s each having a concave shape, and these first accommodating parts ( 110s) and the second accommodating part 120s may accommodate the electrode assembly 200 and the electrolyte.
- the secondary battery 10 of FIG. 2 exemplarily illustrates a pouch-type secondary battery in which the first case unit 110 and the second case unit 120 shown in FIG. 1 are bonded to each other and sealed.
- FIG. 3 is an enlarged view of part A of FIG. 2
- FIG. 4 is a view of the secondary battery 10 of FIG. 2 as viewed from the front.
- the first case part 110 and the second case part 120 constituting the pouch case 100 are provided with the electrode assembly 200 of FIG. 1 being accommodated therein. and a sealing part 140 formed on the edge part 130 of the pouch case 100 surrounding the first accommodating part 110s and the second accommodating part 120s.
- the sealing part 140 is formed in a band shape on at least a portion of the edge part 130 along the edge of the pouch case 100 , whereby the first case part 110 and the second case part 120 are joined to each other. can
- the first case part 110 and the second case part 120 are heat-sealed to form the sealing part 140 , so that the pouch case 100 may be sealed.
- FIG. 5 is a view showing a cross-section taken along line B-B' of FIG. 2 .
- the first case part 110 includes a first base layer 113 , a second metal layer 112 , and a first sealing layer 111 sequentially stacked from the outside
- the second case part Reference numeral 120 includes a second base layer 123 , a second metal layer 122 , and a second sealing layer 121 sequentially stacked from the outside.
- the first base layer 113 and the second base layer 123 may be made of an insulating material such as polyethylene terephthalate (PET) resin or nylon resin to ensure insulation and moldability between the secondary battery and the outside.
- the first metal layer 112 and the second metal layer 122 may include one selected from the group consisting of copper, aluminum, nickel, iron, carbon, chromium, manganese, and alloys thereof.
- the first sealing layer 111 and the second sealing layer 121 may include a thermoplastic resin such as polypropylene (PP).
- the first case part 110 and the second case part 120 are bonded so that the first sealing layer 111 and the second sealing layer 121 are in contact with each other at the edge part 130 .
- the first sealing layer 111 and the second sealing layer 121 are integrally coupled to each other and the sealing layer 140 is formed by pressing with a mold heated to correspond to the sealing part 140 and thermally fusion. formed so that the pouch case 100 can be sealed.
- the sealing part 140 includes a first sealing part 141 having a first width W1 and a second sealing part 142 having a second width W2 smaller than the first width W1 . can do.
- the central part of the length h2 is the length h1 of the long side of the electrode assembly 200 accommodated in the first accommodating part 110s and the second accommodating part 120s. It may be formed to coincide with the center of That is, in FIG. 3 , the center of the long side of the electrode assembly 200 and the center of the length of the second sealing part 142 are both located on the center line C .
- the second sealing part 142 may act as a vent part for the gas generated when the temperature inside the pouch case 100 rises. That is, when exposed to high temperature conditions, the separator inside the electrode assembly 200 contracts, and the battery expands or the electrode is deformed due to vaporization of the electrolyte, thereby causing a short circuit between the positive electrode and the negative electrode. In particular, when the electrode and the current collector come into contact, a thermal runaway state in which heat generation is greater than heat dissipation is reached, and ignition occurs in the battery. However, in this case, even if a short circuit occurs between the positive and negative electrodes, if the electrolyte inside the battery is all drained, the movement of ions and electrons in the battery is restricted, so that ignition can be prevented. That is, safety can be improved by inducing the electrolyte to vaporize and escape at a faster time than conventional batteries.
- the second sealing part 142 may be disposed to be more biased toward the electrode assembly 200 from the center of the first sealing part 141 in the width direction. That is, as shown in FIG. 3 , the sealing part 140 connects the first sealing part 141 and the second sealing part 142 , and toward the electrode assembly 200 from the outside of the pouch case 100 . It includes a first inclined part 143 having an inclined shape, and also connects the first sealing part 141 and the second sealing part 142 , and removes the outside of the pouch case 100 from the electrode assembly 200 . It includes a second inclined portion 144 having a shape inclined toward the. Also, in this case, the length of the first inclined portion 143 may be longer than the length of the second inclined portion 144 .
- the width W2 of the second sealing part 142 is relatively close to the inner side, it can have a sufficient sealing effect.
- the gas generated inside can be more easily guided toward the corresponding portion, that is, the second inclined portion 144 in the recessed form. Breakage of the sealing part 142 and discharge of gas may be induced more rapidly.
- the second width W2 of the second sealing part 142 may have a value of 1/4 or less of the first width W1 of the first sealing part 141 , but is not particularly limited. When the width is too small, sealing performance may be deteriorated, and preferably, it may be 1/8 or more and 1/4 or less.
- the second sealing portion 142 is not a configuration obtained through deformation such as cutting or cutting of the edge portion 130, but only deforms the pressurized shape of the portion during the sealing process by thermal fusion, That is, it is a structure obtained by deformation
- the second sealing part 142 is formed as shown in FIGS. 2 to 4, and in the secondary battery according to the comparative example, such a second sealing part 142 is not formed, In all, a sealing part of a constant width was formed.
- FIG. 7 is a diagram schematically illustrating a secondary battery according to another embodiment of the present invention when viewed from the front.
- the second sealing part 142 is positioned to correspond to both long sides of the pair of long sides facing each other of the electrode assembly 200 . .
- gas vents may occur at both sides at the same time, so that the electrolyte may be discharged more quickly. Accordingly, it is possible to prevent an explosion at a high temperature, thereby improving safety.
- a plurality of pouch-type secondary batteries according to an embodiment of the present invention may be assembled to constitute a battery module, and one or more of these battery modules may be packaged in a pack case to form a battery pack.
- the above-described battery module and battery pack including the same may be applied to various devices.
- a device may be applied to transportation means such as an electric bicycle, an electric vehicle, and a hybrid vehicle, but the present invention is not limited thereto and is applicable to various devices that can use a battery module and a battery pack including the same, and this It belongs to the scope of the invention.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
Claims (11)
- 전극 조립체;상기 전극 조립체가 내장되어 있는 파우치 케이스를 포함하고,상기 파우치 케이스는 전극 조립체의 일부가 내장되는 제1 수납부가 형성된 제1 케이스부 및 상기 전극 조립체의 나머지 부분이 수납되는 제2 수납부가 형성된 제2 케이스부를 포함하고,상기 제1 케이스부와 상기 제2 케이스부는 상기 제1 및 제2 수납부를 둘러싸는 테두리부에서 서로 접하고, 상기 테두리부의 적어도 일부에 띠 형상으로 형성된 실링부에 의해 밀봉되며,상기 실링부는, 제1 폭을 갖는 제1 실링부 및 상기 제1 폭보다 작은 제2 폭을 갖는 제2 실링부를 포함하고,상기 제2 실링부의 길이방향 중심부는, 상기 전극 조립체의 장변의 중심부와 일치하는 이차 전지.
- 제1 항에서,상기 실링부는, 상기 제1 실링부와 상기 제2 실링부를 연결하고, 상기 파우치 케이스의 외측으로부터 상기 전극 조립체를 향해 경사진 형태를 갖는 제1 경사부, 및 상기 제1 실링부와 상기 제2 실링부를 연결하고, 상기 전극 조립체로부터 상기 파우치 케이스의 외측을 향해 경사진 형태를 갖는 제2 경사부를 더 포함하는 이차 전지.
- 제1 항에서,상기 제1 경사부의 길이는, 상기 제2 경사부의 길이보다 더 긴 이차 전지.
- 제1 항에서,상기 제2 폭은, 상기 제1 폭의 1/4 이하인 이차 전지.
- 제1 항에서,상기 테두리부의 폭은, 상기 제1 실링부가 위치하는 곳 및 상기 제2 실링부가 위치하는 곳에서 일정하게 유지되는 이차 전지.
- 제1 항에서,상기 제1 케이스부 및 상기 제2 케이스부는 각각 기재층, 금속층, 및 실링층을 포함하고,상기 실링부는 상기 제1 케이스부의 실링층과 상기 제2 케이스부의 실링층이 상호 열융착되어 일체로 형성된 영역인 이차 전지.
- 제6 항에서,상기 실링층은 열가소성 수지를 포함하는 이차 전지.
- 제1 항에서,상기 전극 조립체는 서로 마주하는 한 쌍의 장변을 포함하고,상기 한 쌍의 장변 중 어느 하나의 장변에 대응해서만 상기 제2 실링부가 위치하는 이차 전지.
- 제1 항에서,상기 전극 조립체는 서로 마주하는 한 쌍의 장변을 포함하고,상기 한 쌍의 장변 중 양측 장변 모두에 대응해서 상기 제2 실링부가 위치하는 이차 전지.
- 제1 항에서,상기 상기 제2 실링부는, 상기 파우치 케이스 내부에서 열폭주가 발생할 경우, 발생되는 가스의 벤트부로 작용하는 이차 전지.
- 제1항에 따른 이차 전지를 포함하는 전지 모듈.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17/922,677 US20230268590A1 (en) | 2020-11-09 | 2021-09-28 | Secondary Battery |
| ES21889383T ES3046220T3 (en) | 2020-11-09 | 2021-09-28 | Secondary battery |
| CN202180028437.4A CN115461914A (zh) | 2020-11-09 | 2021-09-28 | 二次电池 |
| EP21889383.2A EP4120446B1 (en) | 2020-11-09 | 2021-09-28 | Secondary battery |
| JP2022562150A JP7666788B2 (ja) | 2020-11-09 | 2021-09-28 | 二次電池 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200148820A KR102779619B1 (ko) | 2020-11-09 | 2020-11-09 | 이차 전지 |
| KR10-2020-0148820 | 2020-11-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022097918A1 true WO2022097918A1 (ko) | 2022-05-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2021/013266 Ceased WO2022097918A1 (ko) | 2020-11-09 | 2021-09-28 | 이차 전지 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20230268590A1 (ko) |
| EP (1) | EP4120446B1 (ko) |
| JP (1) | JP7666788B2 (ko) |
| KR (1) | KR102779619B1 (ko) |
| CN (1) | CN115461914A (ko) |
| ES (1) | ES3046220T3 (ko) |
| HU (1) | HUE073337T2 (ko) |
| WO (1) | WO2022097918A1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024042855A (ja) * | 2022-09-16 | 2024-03-29 | プライムアースEvエナジー株式会社 | 電池セル |
| JP2025535964A (ja) * | 2023-10-06 | 2025-10-30 | エルジー エナジー ソリューション リミテッド | バッテリセルおよびバッテリセルを含むバッテリ組立体 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20250093832A (ko) * | 2023-12-18 | 2025-06-25 | 삼성에스디아이 주식회사 | 이차 전지 |
| WO2026054477A1 (ko) * | 2024-09-04 | 2026-03-12 | 주식회사 엘지에너지솔루션 | 이차 전지 |
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| KR20090016279A (ko) * | 2007-08-10 | 2009-02-13 | 주식회사 엘지화학 | 향상된 안전성의 이차전지 |
| JP2010267593A (ja) * | 2009-05-18 | 2010-11-25 | Fuji Heavy Ind Ltd | 蓄電デバイス |
| JP2013165038A (ja) * | 2012-02-13 | 2013-08-22 | Nissan Motor Co Ltd | 電池補強方法 |
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| KR100944987B1 (ko) * | 2007-12-14 | 2010-03-02 | 주식회사 엘지화학 | 신규한 실링부 구조를 포함하는 이차전지 |
| JP2009146812A (ja) | 2007-12-17 | 2009-07-02 | Nissan Motor Co Ltd | 電池ケース及び組電池 |
| KR20130052892A (ko) | 2011-11-14 | 2013-05-23 | 에스케이이노베이션 주식회사 | 배터리셀, 및 이를 포함하는 배터리 모듈 |
| KR101294259B1 (ko) * | 2012-02-02 | 2013-08-06 | 주식회사 엘지화학 | 지그재그 형상의 실링부를 포함하는 이차전지 |
| KR20160111614A (ko) * | 2015-03-17 | 2016-09-27 | 주식회사 엘지화학 | 실링부에 벤팅부를 포함하고 있는 전지셀 |
| KR102268404B1 (ko) * | 2018-01-31 | 2021-06-24 | 주식회사 엘지에너지솔루션 | 이차전지 제조방법, 이차전지용 파우치 제조방법 및 이차전지용 파우치 |
-
2020
- 2020-11-09 KR KR1020200148820A patent/KR102779619B1/ko active Active
-
2021
- 2021-09-28 JP JP2022562150A patent/JP7666788B2/ja active Active
- 2021-09-28 ES ES21889383T patent/ES3046220T3/es active Active
- 2021-09-28 US US17/922,677 patent/US20230268590A1/en active Pending
- 2021-09-28 CN CN202180028437.4A patent/CN115461914A/zh active Pending
- 2021-09-28 EP EP21889383.2A patent/EP4120446B1/en active Active
- 2021-09-28 HU HUE21889383A patent/HUE073337T2/hu unknown
- 2021-09-28 WO PCT/KR2021/013266 patent/WO2022097918A1/ko not_active Ceased
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| JP2010267593A (ja) * | 2009-05-18 | 2010-11-25 | Fuji Heavy Ind Ltd | 蓄電デバイス |
| JP2013165038A (ja) * | 2012-02-13 | 2013-08-22 | Nissan Motor Co Ltd | 電池補強方法 |
| KR20150096325A (ko) * | 2014-02-14 | 2015-08-24 | 주식회사 엘지화학 | 실링부에 홈을 포함하고 있는 파우치형 이차전지 |
| KR20200055680A (ko) * | 2018-11-13 | 2020-05-21 | 주식회사 엘지화학 | 파우치 케이스 및 이를 포함하는 파우치형 이차 전지의 제조 방법 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024042855A (ja) * | 2022-09-16 | 2024-03-29 | プライムアースEvエナジー株式会社 | 電池セル |
| JP2025535964A (ja) * | 2023-10-06 | 2025-10-30 | エルジー エナジー ソリューション リミテッド | バッテリセルおよびバッテリセルを含むバッテリ組立体 |
Also Published As
| Publication number | Publication date |
|---|---|
| HUE073337T2 (hu) | 2026-01-28 |
| KR102779619B1 (ko) | 2025-03-10 |
| EP4120446A4 (en) | 2024-03-06 |
| ES3046220T3 (en) | 2025-12-01 |
| JP2023521808A (ja) | 2023-05-25 |
| CN115461914A (zh) | 2022-12-09 |
| JP7666788B2 (ja) | 2025-04-22 |
| EP4120446B1 (en) | 2025-07-09 |
| US20230268590A1 (en) | 2023-08-24 |
| KR20220062995A (ko) | 2022-05-17 |
| EP4120446A1 (en) | 2023-01-18 |
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