Title:
NEGATIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY, CAPACITOR AND ELECTRICITY STORAGE DEVICE EACH USING THE NEGATIVE ELECTRODE ACTIVE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2011/129020
Kind Code:
A1
Abstract:
Disclosed are: a negative electrode active material which is capable of prolonging cycle life, while securing a large energy density (large capacity); and a secondary battery, a capacitor and an electricity storage device, each of which uses the negative electrode active material. A negative electrode active material (12) according to one embodiment of the first invention is formed of a lithium-containing aluminum alloy foil body. The foil body is composed of surface portions (12a) respectively provided on the front surface and the back surface, and a base portion (12b). The surface portions (12a) provided on the front surface and the back surface have a three-dimensional network structure and a plurality of fine pores. The surface portions (12a) provided on the front surface and the back surface have a surface aperture ratio of 10-80%.
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Inventors:
IDO HIDEKAZU
NISHIUCHI MASATO
ANDO MEGUMI
MATSUBARA TOMOYUKI
NISHIUCHI MASATO
ANDO MEGUMI
MATSUBARA TOMOYUKI
Application Number:
PCT/JP2010/062469
Publication Date:
October 20, 2011
Filing Date:
July 23, 2010
Export Citation:
Assignee:
KOBELCO RES INST INC (JP)
IDO HIDEKAZU
NISHIUCHI MASATO
ANDO MEGUMI
MATSUBARA TOMOYUKI
IDO HIDEKAZU
NISHIUCHI MASATO
ANDO MEGUMI
MATSUBARA TOMOYUKI
International Classes:
H01M4/134; H01G11/26; H01M4/46; H01M10/052; H01M10/0566
Foreign References:
| JPH03133062A | 1991-06-06 | |||
| JPS62115663A | 1987-05-27 | |||
| JPS6293861A | 1987-04-30 | |||
| JP2009231234A | 2009-10-08 | |||
| JP2010170901A | 2010-08-05 |
Attorney, Agent or Firm:
OGURI Shohei et al. (JP)
Shohei Oguri (JP)
Shohei Oguri (JP)
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Claims: