Nonaqueous electrolyte battery
AssigneeSony Corporation
InventorsTomitaro Hara, Tsuyonobu Hatazawa, Kazuhito Hatsuta
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Abstract
It is an object to quickly disperse heat generated when short circuit occurs between a positive electrode and a negative electrode. A nonaqueous-electrolyte battery is disclosed which incorporates: an encapsulating medium constituted by a laminated film in which a unit cell is accommodated, wherein the laminated film of the encapsulating medium contains a metal material having a heat conductivity k at room temperatures which is 230 Wm−1K−1 or higher. Moreover, ratio R of the volume of the metal material portion of the encapsulating medium with respect to a capacity of 1 mAh of the unit cell is 0.0002 cm3/mAh≦R≦0.003 cm3/mAh.
Claims15
A nonaqueous-electrolyte battery comprising:
- an encapsulating medium constituted by a laminated film in which a unit cell is accommodated, wherein
- said laminated film of said encapsulating medium contains a metal material having a heat conductivity k at room temperatures which is 230 Wm−1K−1 or higher and having a thickness that ranges from about 30 micrometers to about 50 micrometers.
A nonaqueous-electrolyte battery comprising:
- a unit cell and an encapsulating medium that encapsulates the unit cell;
- the unit cell comprising a positive electrode and a negative electrode each laminated onto a solid electrolyte wherein the unit cell forms a winding structure;
- the encapsulating medium comprising a laminated film which includes a metal material having a heat conductivity k at room temperature ranging from 230 Wm−1K−1 or higher and having a thickness that ranges from about 30 micrometers to about 50 micrometers.
Dependencies are inferred from the claim text.