Title:
POSITIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME, AND LITHIUM-ION SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2014160635
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a positive electrode for a lithium-ion secondary battery, capable of withstanding high-voltage driving.SOLUTION: A positive electrode active material layer is formed of: positive electrode active material particles containing a Li compound or a solid solution selected from LiNiCoMnO, LiCoMnO, LiNiMnO, LiNiCoO, and LiMnO(where 0.5≤x≤1.5, 0.1≤a<1, 0.1≤b<1, and 0.1≤c<1); a binding part which binds the positive electrode active material particles together and binds the positive electrode active material particles to a collector; and an organic-inorganic coat layer covering at least part of the surface of the positive electrode active material particles. The organic-inorganic coat layer has a high bonding strength to the Li compound and is thus capable of suppressing direct contact between the positive electrode active material particles and an electrolyte during high-voltage driving.
Inventors:
OSHIMA HIROKI
MAKI TSUYOSHI
MAKI TSUYOSHI
Application Number:
JP2013062506A
Publication Date:
September 04, 2014
Filing Date:
March 25, 2013
Export Citation:
Assignee:
TOYOTA IND CORP
International Classes:
H01M4/131; H01M4/1391; H01M4/36; H01M4/505; H01M4/525; H01M10/0525; H01M10/0568
Domestic Patent References:
| JP2007520867A | 2007-07-26 | |||
| JP2007280917A | 2007-10-25 | |||
| JP2007134279A | 2007-05-31 |
Attorney, Agent or Firm:
Patent business corporation Joint establishment