Battery with improved safety during mechanical abuse

Details Battery with improved safety during mechanical abuse Battery with improved safety during mechanical abuse

1997-04-16

1998-05-05

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

With control means responsive to battery condition sensing...

429 94, 429197, 429218, H01M 1002

Patent

active

057471886

ABSTRACT:
A battery construction is disclosed having improved safety behaviour under conditions of mechanical abuse, in particular crush type abuse, wherein an additional site for internal short circuiting is engineered therein. In certain circumstances, it can be beneficial to initiate the engineered short before other internal shorts occur. Additionally, it may be beneficial for the engineered short to have a lower resistance than the internal resistance of the battery. The invention is particularly suited for application in lithium ion type batteries.

REFERENCES:
patent: 5464705 (1995-11-01), Wright
K. Ozawa, et al., "Cycle Performance of Lithium Ion Rechargeable Battery," 10th International Seminar on Primary and Secondary Battery Technology and Application, Mar. 1-4, 1993, Deerfield Beach, Florida.

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