摘要:
라미네이트 시트의 금속층이 외부로 노출되는 것이 방지된 파우치형 이차전지 및 그 제조방법을 제공한다. 본 발명에 따른 파우치형 이차전지는 파우치형 전지케이스; 상기 전지케이스 내부에 장착된 전극조립체; 일단은 상기 전극조립체에 연결되어 있고, 타단은 상기 전지케이스 외부로 돌출된 양극 및 음극의 전극리드; 및 상기 전지케이스의 상부 시트와 하부 시트를 접착시킨 실링부를 포함하는 파우치형 이차전지에 있어서, 상기 실링부 말단부로의 수분 침투 경로를 증가시키도록 하는 금속박막을 포함하는 테이프가 접착된 것을 특징으로 한다.
摘要:
A lithium-ion battery module includes a housing having a plurality of partitions configured to define a plurality of compartments within the housing. The battery module also includes a lithium-ion cell element provided in each of the compartments of the housing. The battery module further includes a cover coupled to the housing and configured to route electrolyte into each of the compartments. The cover is also configured to seal the compartments of the housing from each other.
摘要:
A pouch cell (20A, 20) includes a generally rectangular cell housing (20, 21) formed of a metal laminated film, an electrode assembly (60) that is sealed within the cell housing (20, 21), and a current collector device disposed in the cell housing (20, 21). The electrode assembly (60) includes positive electrode portions alternating with negative electrode portions, the positive electrode portions and the negative electrode portions being separated by at least one separator and stacked along a stack axis (66). The current collector device is electrically connected to one of the positive electrode portions and the negative electrode portions and exits the cell housing (20, 21) via an opening (28, 428) formed in the cell housing (20, 21). The opening (28, 428) is formed in a side (22, 24) wall of the cell housing (20, 21) at a location spaced apart from the sealed joint (40) that closes the cell housing (20, 21) and at a location facing the stack axis (66).
摘要:
A battery module supports a stack of nested electrochemical cells. Each cell includes an electrically-conductive container including a bottom, and a sidewall surrounding a periphery of the bottom. Each cell includes an electrically-conductive cell cover configured to close an open end of the container, an insulating gasket disposed between the container and the cell cover and an electrically-conductive jelly roll electrode set disposed in the container. The cell cover is formed having a recess configured to receive the bottom of an adjacent cell. In particular, the recess is configured to conform to the shape and size of the bottom of the adjacent cell so that when the cells are stacked end-to-end, a cell stack is formed in which the cells of the stack a) fit within each other in a nested arrangement, and b) form an electrical connection.
摘要:
상기와 같은 목적을 달성하기 위한 본 발명에 의한 이차전지용 케이스는, 하판과, 상기 하판으로부터 상향으로 연장되는 상향측벽으로 구성되어, 상측이 개방된 내부공간을 구비하는 캔; 상판과, 상기 상판으로부터 하향으로 연장되는 하향측벽으로 구성되어 하측이 개방된 내부공간을 구비하며, 상기 하향측벽의 하단이 상기 하판의 상면에 안착되도록 상기 캔의 내부공간에 삽입되어 상기 캔의 내부공간을 외부와 격리시키는 캡; 을 포함하되, 상기 캔과 상기 캡의 체결 시 체결력과 밀폐성을 향상시키도록 상기 하향측벽의 일부 구간을 상기 상향측벽의 일부 구간으로 감싸는 체결강화부를 구비할 수 있다. 본 발명에 의한 이차전지용 케이스는, 캔과 캡의 결합구조가 단순화되어 제품의 소형화가 가능해지고, 캔과 캡 간의 체결력 및 밀폐성이 향성되며, 전극조립체와의 통전성이 개선된다는 장점이 있다.
摘要:
A battery mouth-sealing assembly and a battery including the said battery mouth-sealing assembly, wherein the mouth-sealing assembly includes an explosion-proof assembly and a mouth-sealing seat. The explosion-proof assembly is held in the hollow cavity, which is in center of mouth-sealing seat, and a supporting-step for supporting the explosion-proof assembly is provided on the bottom of the hollow cavity of the mouth-sealing seat. The first hole for inputting the electrode is provided on the supporting-step and the second hole for outputting the electrode is provided on the top of the mouth-sealing seat, the explosion-proof assembly insulated and sealed is fixed in the hollow cavity.
摘要:
Disclosed are a cap assembly for a secondary battery and a secondary battery including the cap assembly. The cap assembly includes: a safety vent made of a circular metal plate and consisting of a central portion corresponding to the central area of the metal plate and a peripheral surrounding the central portion, the central portion including a current-carrying contact forming a first conductive path through which an electric current generated from a power generating device flows to the outside and a breakable junction forming a second conductive path at the center of the central portion; a cap-down opposite to the safety vent, having a central hole through which the breakable junction is exposed, and including a support member in close contact with the peripheral portion; and a sub-plate joined to the breakable junction and having a notch formed around the breakable junction, the outer circumferential surface of the sub-plate and the cap-down interposing an insulating layer therebetween. The cap assembly can be used to increase the capacity of the power generating device in the secondary battery compared to when used in other secondary batteries of the same size, minimizes the contact resistance between terminals, is constructed at reduced cost, and can protect a gasket disposed between a battery can and the safety vent from being melted or lost by energy or force generated upon external electrical shorting to prevent electrical shorting of the secondary battery.