SLURRY COMPOSITION FOR NONAQUEOUS SECONDARY BATTERY NEGATIVE ELECTRODES, NEGATIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERIES, AND NONAQUEOUS SECONDARY BATTERY

WIPO Patent Application WO/2020/196111

A1

The purpose of the present invention is to provide a slurry composition for nonaqueous secondary battery negative electrodes with which it is possible to form a negative electrode with which the swelling of a secondary battery can be suppressed. This slurry composition for nonaqueous secondary battery negative electrodes contains a negative electrode active material, a particulate polymer, and water, the slurry composition for nonaqueous secondary battery negative electrodes being characterized in that the negative electrode active material includes a negative electrode active material (A) and a negative electrode active material (B), the negative electrode active material (A) being a carbon particle the orientation ratio of which is 7.5 to 9.5, the negative electrode active material (B) being a composite particle which has a silicon oxide particle and a conductive carbon film covering at least a portion of the surface of the silicon oxide particle, the silicon oxide particle containing a silicon oxide represented by SiO2 (0.5 ≦ x < 1.6), and the particulate polymer containing 10-70 mass% inclusive of an ethylenically unsaturated carboxylic acid monomer unit.

YAMAMOTO NORIKAZU (JP)
NITADORI HIROYUKI (JP)

PCT/JP2020/011805

October 01, 2020

March 17, 2020

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ZEON CORP (JP)

H01M4/13; H01M4/139; H01M4/1393; H01M4/36; H01M4/48; H01M4/587; H01M4/62; H01M10/0525; H01M10/0566

WO2007000982A1	2007-01-04
WO2016199353A1	2016-12-15
WO2012115096A1	2012-08-30

JP2016058184A	2016-04-21
JP2017098204A	2017-06-01
JP2008251965A	2008-10-16
JP2012204303A	2012-10-22

See also references of EP 3951923A4

SUGIMURA Kenji (JP)

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