Title:
NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/053626
Kind Code:
A1
Abstract:
Provided is a non-aqueous electrolyte secondary battery that has improved cycle characteristics and has high capacity. A non-aqueous electrolyte secondary battery according to an aspect of the present disclosure comprises: a positive electrode; a negative electrode; a separator that isolates the positive electrode and the negative electrode from each other; and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector, a first positive electrode mixture layer formed on the surface of the positive electrode current collector, and a second positive electrode mixture layer formed on the surface of the first positive electrode mixture layer. The second positive electrode mixture layer includes a second conductive agent having an average particle diameter of 0.5-15 μm. The first positive electrode mixture layer includes a first conductive agent having an average particle diameter smaller than the average particle diameter of the second conductive agent.
Inventors:
AOTANI MASASHI
Application Number:
PCT/JP2022/025261
Publication Date:
April 06, 2023
Filing Date:
June 24, 2022
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H01M4/13; H01M4/62
Domestic Patent References:
| WO2021106860A1 | 2021-06-03 |
Foreign References:
| JP2009004181A | 2009-01-08 | |||
| JP2012243463A | 2012-12-10 | |||
| JP2019515465A | 2019-06-06 | |||
| JP2011009203A | 2011-01-13 | |||
| JP2010262916A | 2010-11-18 | |||
| JP2018500714A | 2018-01-11 |
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
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