Title:
LITHIUM ION BATTERY AND UTILIZATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2010/116533
Kind Code:
A1
Abstract:
Disclosed is a lithium ion battery equipped with an electrode body (30), which is constructed by laminating and rolling cathode sheets (32) and anode sheets (34), which are in the form of long sheets, with intervening separators (35). The anode sheets (34) are each provided with an active material layer (344) in which one edge, in the length direction, of a collector (342) is left in the form of a strip. The aforementioned strip-like portion (342a) juts out from the cathode sheet (32). A porous inorganic layer (346) is formed on the outer surface of the anode active material layer (344) from a flat part (344a), wrapping around the edge (344b), and extending to the surface of the collector (342). The porosity (Pa) at the edge (344b) of the inorganic layer (346) is lower than the porosity (Pb) at the flat part (344a) thereof.
Inventors:
MORISHIMA RYUTA (JP)
Application Number:
PCT/JP2009/057398
Publication Date:
October 14, 2010
Filing Date:
April 10, 2009
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
MORISHIMA RYUTA (JP)
MORISHIMA RYUTA (JP)
International Classes:
H01M50/209; H01M50/224; H01M50/227; H01M50/231
Foreign References:
| JP2008103310A | 2008-05-01 | |||
| JP2009038016A | 2009-02-19 | |||
| JP2005235695A | 2005-09-02 |
Attorney, Agent or Firm:
ABE, MAKOTO (JP)
Makoto Abe (JP)
Makoto Abe (JP)
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