Title:
NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/163483
Kind Code:
A1
Abstract:
A nonaqueous electrolyte secondary battery (10) according to one embodiment of the present invention is provided with a positive electrode (11) that comprises a lithium metal composite oxide and a negative electrode (12) that comprises graphite. The lithium metal composite oxide contains first composite oxide particles, which are secondary particles wherein primary particles having an average particle diameter of from 50 nm to 5 μm aggregate, and second composite oxide particles, which are non-aggregated particles having an average particle diameter of from 2 μm to 20 μm. The initial charge/discharge efficiency of the positive electrode (11) is lower than the initial charge/discharge efficiency of the negative electrode (12).
Inventors:
OKI YUKIHIRO
NOMURA SHUN
OGATA ATSUSHI
NOMURA SHUN
OGATA ATSUSHI
Application Number:
PCT/JP2019/003622
Publication Date:
August 29, 2019
Filing Date:
February 01, 2019
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
PANASONIC CORP (JP)
PANASONIC CORP (JP)
International Classes:
H01M10/0525; H01M4/131; H01M4/36; H01M4/485; H01M4/505; H01M4/525
Domestic Patent References:
| WO2015198521A1 | 2015-12-30 |
Foreign References:
| JP2006294469A | 2006-10-26 | |||
| JP2017107727A | 2017-06-15 | |||
| JP2012169300A | 2012-09-06 | |||
| JP2010086693A | 2010-04-15 | |||
| JPH07114942A | 1995-05-02 |
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
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