US 12,074,286 B2
Additive for nonaqueous electrolyte solutions, nonaqueous electrolyte solution, and electricity storage device
Yuki Kono, Hyogo (JP); Yasuyuki Takai, Hyogo (JP); and Koji Fujita, Hyogo (JP)
Assigned to SUMITOMO SEIKA CHEMICALS CO., LTD., Hyogo (JP)
Appl. No. 17/041,341
Filed by SUMITOMO SEIKA CHEMICALS CO., LTD., Hyogo (JP)
PCT Filed Jan. 22, 2019, PCT No. PCT/JP2019/001880
§ 371(c)(1), (2) Date Sep. 24, 2020,
PCT Pub. No. WO2019/187545, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 2018-067264 (JP), filed on Mar. 30, 2018.
Prior Publication US 2021/0367269 A1, Nov. 25, 2021
Int. Cl. H01M 10/0567 (2010.01); H01G 11/06 (2013.01); H01G 11/64 (2013.01); H01M 10/0525 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 10/42 (2006.01)
CPC H01M 10/0567 (2013.01) [H01G 11/06 (2013.01); H01G 11/64 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 10/4235 (2013.01); H01M 2300/0037 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An additive for nonaqueous electrolyte solutions comprising a compound represented by the following formula (1a) or (1b):

OG Complex Work Unit Chemistry
wherein in Formulae (1a) and (1b), X represents an alkylene group having 3 to 7 carbon atoms without substitution, or an alkenylene group having 3 to 7 carbon atoms, which may be substituted, each of which constitutes a cyclic structure together with the sulfur atom of a sulfonyl group, n represents an integer of 1 to 7, Z represents a monovalent group represented by Formula (2a), and m represents 0 or 1:

OG Complex Work Unit Chemistry
wherein R2a represents an alkyl group having 1 to 4 carbon atoms, which may be substituted, an alkenyl group having 2 to 4 carbon atoms, which may be substituted, an alkynyl group having 2 to 4 carbon atoms, which may be substituted, an aryl group which may be substituted, an alkoxy group having 1 to 4 carbon atoms, which may be substituted, an alkenyloxy group having 2 to 4 carbon atoms, which may be substituted, an alkynyloxy group having 2 to 4 carbon atoms, which may be substituted, an aryloxy group which may be substituted, a hydroxyl group, a lithium alcoholate group, or a lithium atom.