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Title:
SEALED LAMINATE BATTERY WITH ROUGHENED TERMINAL LEADTHROUGHS___
Document Type and Number:
WIPO Patent Application WO2002045186
Kind Code:
A3
Abstract:
A battery apparatus includes an anode terminal and a cathode terminal at least one of which includes a conductive extension extending through and contacting insulative housing material. The extension includes at least one outer rough surface characterized by a plurality of surface nodules at least a majority of which are at least 5 microns in height and have a maximum linear cross dimension of at least 20 microns and which contact and bond with the enveloping electrically insulative housing material. The battery apparatus can include a plurality of bicells. A method of forming a bettery apparatus includes brushing an outer surface of at least one of an anode terminal material or a cathode terminal material effective to roughen the outer surface from what it was prior to the brushing. The anode and cathode assembly are enveloped in a housing comprising electrically insulative material with at least the one terminal aterial projecting therefrom.

Inventors:
GROSS OLIVER J (US)
GUGGENHEIM PETER (US)
Application Number:
PCT/US2001/043436
Publication Date:
September 06, 2002
Filing Date:
November 21, 2001
Export Citation:
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Assignee:
VALENCE TECHNOLOGY INC (US)
GROSS OLIVER J (US)
GUGGENHEIM PETER (US)
International Classes:
B23K1/06; H01M50/119; H01M50/121; H01M50/129; H01M50/176; H01M50/55; H01M50/557; H01M50/562; H01M; (IPC1-7): H01M2/02; H01M2/06; H01M2/30
Domestic Patent References:
WO1997008762A11997-03-06
WO2000070701A12000-11-23
Foreign References:
US6145280A2000-11-14
Other References:
PATENT ABSTRACTS OF JAPAN vol. 013, no. 312 (E - 788) 17 July 1989 (1989-07-17)
PATENT ABSTRACTS OF JAPAN vol. 006, no. 025 (E - 094) 13 February 1982 (1982-02-13)
PATENT ABSTRACTS OF JAPAN vol. 006, no. 234 (E - 143) 20 November 1982 (1982-11-20)
PATENT ABSTRACTS OF JAPAN vol. 010, no. 058 (E - 386) 7 March 1986 (1986-03-07)
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