Title:
The vehicles which carry the manufacturing method of a lithium silicate system compound, the quality of cathode active material, and the quality of cathode active material, a nonaqueous electrolyte secondary battery, and it
Document Type and Number:
Japanese Patent JP5950389
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a positive electrode active material useful as the positive electrode material of a lithium ion secondary battery, and the like, and containing a novel lithium silicate-based compound.SOLUTION: The positive electrode active material for nonaqueous electrolyte secondary battery containing a lithium silicate-based compound that contains Li, Fe, Si and O. The positive electrode active material has the oxidation-reduction potential of Li as a reference potential, and the charge/discharge capacity from first cycle through fifth cycle is 200 mAh/g or more, in the initial (first cycle) voltage range of 1.5-4.8 V, and subsequent voltage range of 1.5-4.5 V.
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Inventors:
Kojima Akira
Toshikatsu Kojima
Mitsuharu Tabuchi
Tetsuo Sakai
Junichi Niwa
Kazuhito Kawasumi
Toshikatsu Kojima
Mitsuharu Tabuchi
Tetsuo Sakai
Junichi Niwa
Kazuhito Kawasumi
Application Number:
JP2012040903A
Publication Date:
July 13, 2016
Filing Date:
February 28, 2012
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
National Institute of Advanced Industrial Science and Technology
National Institute of Advanced Industrial Science and Technology
International Classes:
H01M4/36; H01M4/58
Domestic Patent References:
| JP2013054927A | ||||
| JP2013144636A | ||||
| JP2012006810A | ||||
| JP2001266882A |
Foreign References:
| WO2010089931A1 |
Other References:
ARROYO-DE DOMPABLO M.e., et al.,On-demand design of polyoxianionic cathode materials based on electronegativity correlations: An exploration of the Li2MSiO4 system (M=Fe, Mn, Co, Ni) ,Electrochem Commun ,2006年 8月,Vol.8 No.8,Page.1292-1298
Attorney, Agent or Firm:
Hiroshi Okawa