Title:
非水二次電池
Document Type and Number:
Japanese Patent JP5933252
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a nonaqueous secondary battery high in capacity and excellent in cycle characteristics.SOLUTION: The nonaqueous secondary battery includes: a negative electrode containing a conductive assistant while using at least one alloyed material and graphite as an active material, the alloyed material being selected from an element capable of being alloyed with lithium by charging and a compound of the element; a positive electrode; and a nonaqueous electrolyte. In the nonaqueous secondary battery, an oxide of the element is contained as the alloyed material, the alloyed material is combined with the conductive assistant, the ratio of the alloyed material in the total amount of the alloyed material and the graphite is 1 to 13% by mass, and an average particle size of the alloyed material is 2/5 or less of that of the graphite.
Inventors:
Zhao Kinho
Application Number:
JP2011282969A
Publication Date:
June 08, 2016
Filing Date:
December 26, 2011
Export Citation:
Assignee:
Hitachi Maxell Co., Ltd.
International Classes:
H01M4/133; H01M4/36; H01M4/38; H01M4/587; H01M4/62
Domestic Patent References:
| JP11312518A | ||||
| JP2007165108A | ||||
| JP200447404A | ||||
| JP2007141504A |
Foreign References:
| WO2008025188A1 |
Attorney, Agent or Firm:
Tetsuo Miwa
Hideki Miwa
Hideki Miwa
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