Title:
非水電解質二次電池用正極及びその正極を用いた非水電解質二次電池
Document Type and Number:
Japanese Patent JP5349700
Kind Code:
B2
Abstract:
It is an object of the present invention to provide a positive electrode for nonaqueous electrolyte secondary batteries that can suppress decreases in the discharge capacity and discharge voltage even when continuous charging is performed at high temperature and that can also suppress decreases in the discharge voltage and energy density even in the charge and discharge after the continuous charging, and to provide a nonaqueous electrolyte secondary battery that uses the positive electrode. The positive electrode includes a positive electrode active material composed of a mixture containing lithium cobalt oxide 21 having a surface to which an erbium compound 22 is partly adhered and lithium nickel cobalt manganese oxide and a binder. The content of the lithium nickel cobalt manganese oxide is 1% by mass or more and 50% by mass or less relative to the total amount of the positive electrode active material.
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Inventors:
Daizo Jito
Takeshi Ogasawara
Takeshi Ogasawara
Application Number:
JP2012547351A
Publication Date:
November 20, 2013
Filing Date:
September 21, 2011
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
H01M4/525; H01M4/13; H01M4/131; H01M4/36; H01M4/505; H01M10/052; H01M10/0566
Domestic Patent References:
| JPH06150928A | 1994-05-31 | |||
| JP2010165657A | 2010-07-29 | |||
| JP2006147191A | 2006-06-08 | |||
| JP2005339970A | 2005-12-08 | |||
| JP2005339886A | 2005-12-08 | |||
| JP2009302009A | 2009-12-24 | |||
| JP2010238464A | 2010-10-21 | |||
| JPH06150928A | 1994-05-31 | |||
| JP2010165657A | 2010-07-29 | |||
| JP2006147191A | 2006-06-08 |
Foreign References:
| WO2010004973A1 | 2010-01-14 |
Attorney, Agent or Firm:
Masaaki Ohashi