Battery having improved safety features

Details Battery having improved safety features Battery having improved safety features

1997-03-18

1998-08-18

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Elastic, resilient or spring biasing valve means

429 56, 429197, 429224, H01M 212

Patent

active

057956740

ABSTRACT:
An improved safety battery exhibiting excellent safety features and capable of preventing ejection and spraying of the contents thereof when the safety valve has been ruptured, and having a safety valve which cannot be pierced unintentionally or intentionally by a child or the like is provided. In a preferred embodiment, a cylindrical nonaqueous-electrolyte battery is provided including a safety valve and a battery cover arrangement defining first and second venting cavities which are disposed under cover, to reduce or eliminate direct spraying discharge of the battery contents and to prohibit outside access to venting openings.

REFERENCES:
patent: 4227701 (1980-10-01), Tsuchida et al.
patent: 5376467 (1994-12-01), Abe et al.
patent: 5427875 (1995-06-01), Yamamoto et al.
patent: 5455128 (1995-10-01), Tanaka
patent: 5462820 (1995-10-01), Tanaka
patent: 5677076 (1997-10-01), Sato et al.
patent: 5702840 (1997-12-01), Byon

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