Title:
NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/163618
Kind Code:
A1
Abstract:
Provided is a non-aqueous electrolyte secondary battery having improved charge and discharge cycle characteristics. A non-aqueous electrolyte secondary battery according to an aspect of the present disclosure comprises: an electrode body in which a belt-shaped positive electrode and a belt-shaped negative electrode are wound with a separator therebetween; an electrolyte; and an outer case which accommodates the electrode body and the electrolyte. The negative electrode has a negative electrode current collector and a negative electrode mixture layer which is formed on a surface of the negative electrode current collector and which contains a negative electrode active material and a solid electrolyte. The negative electrode mixture layer has a region in which the solid electrolyte content in the inner winding end part is higher than the solid electrolyte content in the outer winding end part, and the solid electrolyte content continuously decreases from the inner winding end part side to the outer winding end part side.
Inventors:
MIZUKOSHI FUMIKAZU
SAKITANI NOBUHIRO
SAKITANI NOBUHIRO
Application Number:
PCT/JP2022/002566
Publication Date:
August 04, 2022
Filing Date:
January 25, 2022
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H01M4/13; H01M4/133; H01M4/134
Foreign References:
| JP2017139107A | 2017-08-10 | |||
| JP2003308878A | 2003-10-31 | |||
| JP2015095412A | 2015-05-18 | |||
| JP2013175345A | 2013-09-05 | |||
| JP2009158335A | 2009-07-16 |
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
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