CELL

WIPO Patent Application WO/2006/118053

A1

A cell includes a band-shaped electrode group. The electrode group has a first electrode, a second electrode, and a separator arranged between the first electrode and the second electrode. The first electrode has a band-shaped first current collector and a first active material layer held on one side of the first current collector. The first active material layer faces the separator. The second electrode has a band-shaped second current collector and a second active material layer held on one side of the second current collector. The second active material layer faces the separator. The electrode group is bent in zigzag to constitute a layered body having a plurality of flat portions, at least one first bent portion located at a first end side of the flat portions with the first current collector located at the outermost circumferential side, and at least one second bent portion located at a second end side opposite to the first end side with the second current collector located at the outermost circumferential side. The layered body has a first terminal connected to at least one first bent portion and a second terminal connected to at least one second bent portion.

MINO SHINJI
OKAZAKI SADAYUKI
UGAJI MASAYA
HIRAMOTO MASAYOSHI

PCT/JP2006/308422

November 09, 2006

April 21, 2006

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MATSUSHITA ELECTRIC IND CO LTD (JP)
MINO SHINJI
OKAZAKI SADAYUKI
UGAJI MASAYA
HIRAMOTO MASAYOSHI

H01M4/70; H01M10/04; H01M10/0583; H01M10/38; H01M50/562

JPH05101830A	1993-04-23
JPH08501409A	1996-02-13
JP2006032874A	2006-02-02
JPH0799048A	1995-04-11
JPH09134735A	1997-05-20
JP2003272594A	2003-09-26
JP2003272593A	2003-09-26

Ishii, Kazuo (3-6 Kitahama 2-chome, Chuo-k, Osaka-shi Osaka 41, JP)

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