NEGATIVE ELECTRODE MATERIAL FOR SECONDARY BATTERY AND SECONDARY BATTERY USING SAID NEGATIVE ELECTRODE MATERIAL

WIPO Patent Application WO/2019/150646

A1

The purpose of the present invention is to provide, in a secondary battery that uses a solid electrolyte, a negative electrode material for the secondary battery, said negative electrode material being capable of both enhancing battery characteristics and ensuring reliability, as well as a secondary battery using said negative electrode material. A negative electrode material for a secondary battery according to the present invention is characterized by being a laminated material of a negative electrode current collector and a negative electrode mixture layer and is characterized in that: the negative electrode mixture layer has a negative-electrode active material, a conductive material, and a solid electrolyte material; the solid electrolyte material contains a solvated electrolyte salt and oxide particles; the solvated electrolyte salt is formed as a result of an ether-based solvent solvating a lithium electrolyte salt; the mass ratio of the solvated electrolyte salt with respect to the negative electrode mixture layer is 15-40% inclusive; and the action potential of the negative-electrode active material is 0.2-2.0 V inclusive with reference to lithium.

UNEMOTO ATSUSHI (JP)
MORISHIMA MAKOTO (JP)
KAWAJI JUN (JP)
GAMBE YOSHIYUKI (JP)
HONMA ITARU (JP)

PCT/JP2018/034829

August 08, 2019

September 20, 2018

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HITACHI CHEMICAL CO LTD (JP)
UNIV TOHOKU (JP)

H01M4/13; H01M4/62; H01M10/056; H01M10/0585

WO2018180258A1

2018-10-04

JP2017059432A	2017-03-23
JP2002319434A	2002-10-31
JP2011119158A	2011-06-16
JP2007280948A	2007-10-25
JP2016051615A	2016-04-11
JP2007534122A	2007-11-22

POLAIRE I.P.C. (JP)

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