LITHIUM ION SECONDARY BATTERY - SEKISUI CHEMICAL CO LTD

Title:

LITHIUM ION SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2020/204074

Kind Code:

A1

Abstract:

The present invention pertains to a lithium ion secondary battery comprising: a positive electrode; a negative electrode; an insulating layer disposed between the positive electrode and the negative electrode; and an electrolytic solution, wherein the insulating layer contains a polymer solid electrolyte and has a thickness of 3-7 μm. According to the present invention, provided is a lithium ion secondary battery having an insulating layer, wherein an increase in the internal resistance of the lithium ion secondary battery caused by a reduction in the porosity of the insulating layer can be suppressed.

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Inventors:

SUZUKI AKIHIRO (JP)

Application Number:

PCT/JP2020/015036

Publication Date:

October 08, 2020

Filing Date:

April 01, 2020

Export Citation:

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Assignee:

SEKISUI CHEMICAL CO LTD (JP)

International Classes:

H01M10/052; H01M10/0565

Foreign References:

JP2015028942A	2015-02-12
JP2010199083A	2010-09-09
JP2018514929A	2018-06-07

Attorney, Agent or Firm:

TAGUCHI, Masahiro et al. (JP)

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