Title:
NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/100305
Kind Code:
A1
Abstract:
In this non-aqueous electrolyte secondary battery: a positive electrode active material contains a lithium transition metal oxide that has a layered structure including a Li layer and that contains at least prescribed amounts of Ni, Ca, and Al; the proportion of metal elements, excluding Li, in the Li layer is 0.6-2.0 mol% with respect to the total number of moles of metal elements, excluding Li, contained in the lithium transition metal oxide; a negative electrode active material has a coating containing Ca on the surface thereof; and the contained amount of Ca in the coating is not less than 15 mass ppm but less than 80 mass ppm with respect to the total mass of the positive electrode material.
Inventors:
TOGO MASAKAZU
AOKI YOSHINORI
OGASAWARA TAKESHI
AOKI YOSHINORI
OGASAWARA TAKESHI
Application Number:
PCT/JP2020/035248
Publication Date:
May 27, 2021
Filing Date:
September 17, 2020
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M4/36; H01M4/525; H01M10/052
Foreign References:
| JP2018530122A | 2018-10-11 | |||
| JP2013030284A | 2013-02-07 | |||
| JP5682796B2 | 2015-03-11 | |||
| JP5615926B2 | 2014-10-29 | |||
| JP2003100295A | 2003-04-04 | |||
| JP2018129221A | 2018-08-16 |
Other References:
See also references of EP 4064387A4
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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