US 12,255,288 B2
Nonaqueous electrolytic solution for battery and lithium secondary battery
Kei Sugawara, Ichihara (JP); and Satoko Fujiyama, Kisarazu (JP)
Assigned to MITSUI CHEMICALS, INC., Tokyo (JP)
Appl. No. 17/599,295
Filed by MITSUI CHEMICALS, INC., Tokyo (JP)
PCT Filed Mar. 18, 2020, PCT No. PCT/JP2020/012118
§ 371(c)(1), (2) Date Sep. 28, 2021,
PCT Pub. No. WO2020/203322, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-066772 (JP), filed on Mar. 29, 2019.
Prior Publication US 2022/0158247 A1, May 19, 2022
Int. Cl. H01M 10/0568 (2010.01); H01M 4/583 (2010.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01)
CPC H01M 10/0568 (2013.01) [H01M 4/583 (2013.01); H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01); H01M 2300/0028 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A nonaqueous electrolytic solution for a battery that includes a negative electrode active material containing graphite, the nonaqueous electrolytic solution for a battery comprising:
a compound represented by the following Formula (1):

OG Complex Work Unit Chemistry
and
a sulfur-containing compound,
wherein, in Formula (1), R represents a fluorine atom or a fluorinated hydrocarbon group having from 1 to 6 carbon atoms,
wherein a content of the sulfur-containing compound is 0.001% by mass to 5% by mass with respect to a total amount of the nonaqueous electrolytic solution, and
wherein the sulfur-containing compound is selected from the group consisting of:
a disulfonyl compound,
a sulfuric acid ester selected from the group consisting of compounds represented by the following Formulae (C-1) to (C-3):

OG Complex Work Unit Chemistry
 and
a sulfobenzoic acid compound.