BATTERY SEPARATOR WITH Z-DIRECTION STABILITY

Title:

BATTERY SEPARATOR WITH Z-DIRECTION STABILITY

Document Type and Number:

WIPO Patent Application WO2006047114

Kind Code:

A3

Abstract:

A method for preventing or reducing sudden thermal runaway in a battery is disclosed. In this method, a thermoplastic microporous membrane having inert, thermally non-deforming particulate dispersed therein is placed between the electrodes of the battery. Thus, for example, when an external force is applied to the battery, physical contact of the electrodes is prevented by the particulate-filled separator.

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Inventors:

ZHANG ZHENGMING (US)
NGUYEN KHUY V (US)
ARORA PANKAJ (US)
CALL RONALD W (US)
SIMMONS DONALD K (US)
DAO TIEN (US)

Application Number:

PCT/US2005/037135

Publication Date:

November 30, 2006

Filing Date:

October 18, 2005

Export Citation:

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Assignee:

CELGARD LLC (US)
ZHANG ZHENGMING (US)
NGUYEN KHUY V (US)
ARORA PANKAJ (US)
CALL RONALD W (US)
SIMMONS DONALD K (US)
DAO TIEN (US)

International Classes:

H01M2/16

Foreign References:

US4650730A	1987-03-17
US6432586B1	2002-08-13

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