NON-AQUEOUS ELECTROLYTE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

WIPO Patent Application WO/2023/026851

A1

The present invention relates to a non-aqueous electrolyte used in a non-aqueous electrolyte secondary battery in which the negative electrode includes any of silicon compounds, germanium compounds, and tin compounds as negative electrode active material particles, the non-aqueous electrolyte including at least one or more silane compounds selected from the silane compounds represented by the following general formulae (1) and (2). This provides a non-aqueous electrolyte and a non-aqueous electrolyte secondary battery in which the battery cells are not susceptible to swelling, even when a negative electrode material such as a silicon material or the like is used. (In the formulae, R1 each independently represents a C2-20 alkenyl group or an alkynyl group, R2 each independently represents a C1-20 alkyl group, and X each independently represents a C1-20 alkylene group, a C2-20 alkenylene group, or an alkynylene group. In addition, l each independently represents an integer of 1-3, and m each independently represents an integer of 1-2.

KANESATO SHUHEI (JP)
HIROSE TAKAKAZU (JP)
OSAWA YUSUKE (JP)
KIYOMORI AYUMU (JP)
AOKI SHOTARO (JP)

PCT/JP2022/030424

March 02, 2023

August 09, 2022

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SHINETSU CHEMICAL CO (JP)

H01M10/0567; H01M4/13; H01M4/134; H01M4/136; H01M4/36; H01M4/38; H01M4/48; H01M4/58

JP2002134169A	2002-05-10
JP2017097952A	2017-06-01
JP2019206502A	2019-12-05
JP2009004352A	2009-01-08
JP2001185127A	2001-07-06
JP2002042806A	2002-02-08
JP2006164954A	2006-06-22
JP2006114454A	2006-04-27
JP2006134719A	2006-05-25

JOURNAL OF POWER SOURCES, vol. 450, 2020, pages 227699

YOSHIMIYA Mikio et al. (JP)

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