LITHIUM ION SECONDARY BATTERY AND METHOD FOR PRODUCING SAME, AND SOLID ELECTROLYTE MEMBRANE FOR LITHIUM ION SECONDARY BATTERIES AND METHOD FOR PRODUCING SAME

WIPO Patent Application WO/2021/085488

A1

A lithium ion secondary battery which comprises a positive electrode layer, a negative electrode layer, and a solid electrolyte membrane (22) that contains electronically insulating inorganic particles (26) having a particle diameter of from 10 nm to 500 nm, inorganic solid electrolyte particles (25) that are larger than the electronically insulating inorganic particles (26) and have ion conductivity and resistance to electrolyte solutions, and a thermofusible coagulum (27) of an electronically insulating material, said thermofusible coagulum (27) filling up the spaces among solid particles, and being thermally fused in a specific temperature range, wherein the thermofusible coagulum (27) of an electronically insulating material is in an amorphous state and the inorganic solid electrolyte particles (25) are substantially arranged in a single layer in the solid electrolyte membrane (22); a method for producing this lithium ion secondary battery; a solid electrolyte membrane which is suitable as a separator for this battery; and a method for producing this solid electrolyte membrane.

IMAI SHINJI (JP)

PCT/JP2020/040486

May 06, 2021

October 28, 2020

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FUJIFILM CORP (JP)

H01M4/40; H01M4/62; H01M10/052; H01M10/0562; H01M10/0566; H01M50/409

WO2018164051A1

2018-09-13

JP2017183111A	2017-10-05
JP2016511521A	2016-04-14
JP2001351615A	2001-12-21
JP2015527722A	2015-09-17
JPS6378405A	1988-04-08

IIDA & PARTNERS et al. (JP)

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