BATTERY CELL
To provide a battery cell that can suppress the pressure rise inside a frame-shaped member and prevent damage.SOLUTION: A battery cell 1 includes: an electrode composition; a frame-shaped member 3 that is arranged in an annular shape so as to surround the periphery of the electrode composition; and...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a battery cell that can suppress the pressure rise inside a frame-shaped member and prevent damage.SOLUTION: A battery cell 1 includes: an electrode composition; a frame-shaped member 3 that is arranged in an annular shape so as to surround the periphery of the electrode composition; and a positive electrode current collector and a negative electrode current collector that close an opening 3a of the frame-shaped member 3 from both sides in a thickness direction. The frame-shaped member 3 includes a fragile portion 9 that communicates inside and outside the frame-shaped member 3 when a pressure inside the frame-shaped member 3 increases by a certain amount or more.SELECTED DRAWING: Figure 3
【課題】枠状部材の内側の圧力上昇を抑えて損傷を防止できる電池セルを提供する。【解決手段】電池セル1は、電極組成物と、電極組成物の周囲を囲むように環状に配置される枠状部材3と、枠状部材3の開口3aを厚さ方向両側から閉塞する正極集電体及び負極集電体と、を備える。枠状部材3は、枠状部材3の内側の圧力が一定以上高まった場合に枠状部材3の内外を連通する脆弱部9を有する。【選択図】図3 |
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