Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/127425
Kind Code:
A1
Abstract:
Provided is a non-aqueous electrolyte secondary battery that exhibits an improved charging/discharging efficiency at low cost. A positive electrode active material included in this non-aqueous electrolyte secondary battery includes a lithium-transition metal composite oxide containing 90 mol% or more of Ni and Mn with respect to the total molar amount of metal elements other than Li. The lithium-transition metal composite oxide is composed of single particles and/or secondary particles formed through aggregation of 2-100 of the single particles. The average particle size of the single particles is 0.5-1.5 μm. A boron compound is attached on the surface of the lithium-transition metal composite oxide.
Inventors:
SAITO MOTOHARU
OGASAWARA TAKESHI
OGASAWARA TAKESHI
Application Number:
PCT/JP2022/044877
Publication Date:
July 06, 2023
Filing Date:
December 06, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01M4/525; H01M4/36; H01M4/505; H01M4/62; H01M10/052
Domestic Patent References:
| WO2018043190A1 | 2018-03-08 | |||
| WO2017098679A1 | 2017-06-15 | |||
| WO2014007358A1 | 2014-01-09 |
Foreign References:
| JP2021072193A | 2021-05-06 | |||
| JP2021072194A | 2021-05-06 |
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
Download PDF: