Title:
NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/230626
Kind Code:
A1
Abstract:
The present invention provides a non-aqueous electrolyte secondary battery that makes it possible to obtain improved productivity while reducing electrode plate deformation. A non-aqueous electrolyte secondary battery according to the present disclosure comprises: an electrode body in which a positive electrode and a negative electrode are wound via a separator therebetween; a non-aqueous electrolyte; and an outer case in which the electrode body and the non-aqueous electrolyte are contained. The positive electrode includes a positive electrode current collector, and a positive electrode mixture layer formed on a surface of the positive electrode current collector. The surface of the separator opposite the positive electrode mixture layer includes a high friction region formed in an area of less than six turns in a winding direction from a position opposite the winding inner end of the positive electrode mixture layer, and a low friction region adjacent to the high friction region.
Inventors:
KASAMATSU SHINJI
KITTA KAZUKI
KITTA KAZUKI
Application Number:
PCT/JP2022/017147
Publication Date:
November 03, 2022
Filing Date:
April 06, 2022
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H01M10/0587; H01M50/434; H01M50/443; H01M50/451; H01M50/46; H01M50/463
Foreign References:
| JP2020107411A | 2020-07-09 | |||
| JP2012142153A | 2012-07-26 | |||
| JP2013089441A | 2013-05-13 | |||
| JP2013178952A | 2013-09-09 | |||
| JP2013114847A | 2013-06-10 | |||
| JP2011126275A | 2011-06-30 |
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
Download PDF: