Additive for nonaqueous electrolyte solutions, nonaqueous electrolyte solution, and electricity storage device

Patent metadata

Field	Value
Publication number	US-2019393552-A1
Application number	US-201816491519-A
Country	US
Kind code	A1
Filing date	Mar 6, 2018
Priority date	Mar 7, 2017
Publication date	Dec 26, 2019
Grant date	—

Abstract

Disclosed is an additive for nonaqueous electrolyte solutions, which includes a compound represented by the following formula (1):

in the formula (1), Q represents an optionally substituted alkenylene group having 4 to 7 carbon atoms and forming a cyclic group together with the sulfur atom of the sulfonyl group, X represents a sulfonyl group, a phosphoryl group, or a carbonyl group, R 1 represents an optionally substituted alkyl group having 1 to 4 carbon atoms or the like, and n represents 1 or 2.

First claim

1 . An additive for nonaqueous electrolyte solutions, comprising a compound represented by the following formula (1):

in the formula (1),
Q represents an optionally substituted alkenylene group having 4 to 7 carbon atoms and forming a cyclic group together with the sulfur atom of the sulfonyl group,
X represents a sulfonyl group, a phosphoryl group, or a carbonyl group,
R 1 represents an optionally substituted alkyl group having 1 to 4 carbon atoms, an optionally substituted alkenyl group having 2 to 4 carbon atoms, an optionally substituted alkynyl group having 2 to 4 carbon atoms, an optionally substituted aryl group, an optionally substituted alkoxy group having 1 to 4 carbon atoms, an optionally substituted alkenyloxy group having 2 to 4 carbon atoms, an optionally substituted alkynyloxy group having 2 to 4 carbon atoms, or an optionally substituted aryloxy group, and
n represents 1 or 2.

2 . The additive for nonaqueous electrolyte solutions according to claim 1 ,
wherein the compound represented by the formula (1) is a compound represented by the following formula (2):

in the formula (2), X, R 1 , and n have the same meanings as X, R 1 , and n, respectively, in the formula (1).

3 . The additive for nonaqueous electrolyte solutions according to claim 1 ,
wherein X is a sulfonyl group.

4 . The additive for nonaqueous electrolyte solutions according to claim 1 ,
wherein R 1 is an alkyl group having 1 to 4 carbon atoms and optionally substituted with a halogen atom, an aryl group or a halogenated aryl group, an alkenyl group having 2 to 4 carbon atoms and optionally substituted with a halogen atom, an alkynyl group having 2 to 4 carbon atoms and optionally substituted with a halogen atom, an aryl group optionally substituted with a halogen atom, an alkyl group or a halogenated alkyl group, an alkoxy group having 1 to 4 carbon atoms and optionally substituted with a halogen atom, an aryl group or a halogenated aryl group, an alkenyloxy group having 2 to 4 carbon atoms and optionally substituted with a halogen atom, an alkynyloxy group having 2 to 4 carbon atoms and optionally substituted with a halogen atom, or an aryloxy group optionally substituted with a halogen atom, an alkyl group, a halogenated alkyl group or an alkoxy group.

5 . A nonaqueous electrolyte solution comprising:
the additive for nonaqueous electrolyte solutions according to claim 1 ; a nonaqueous solvent; and an electrolyte.

6 . The nonaqueous electrolyte solution according to claim 5 ,
wherein the nonaqueous solvent includes cyclic carbonate and/or chained carbonate.

7 . The nonaqueous electrolyte solution according to claim 5 ,
wherein the electrolyte includes a lithium salt.

8 . An electricity storage device comprising:
the nonaqueous electrolyte solution according to claim 5 ; a positive electrode; and a negative electrode.

9 . A lithium ion battery comprising:
the nonaqueous electrolyte solution according to claim 5 ; a positive electrode; and a negative electrode.

10 . A lithium ion capacitor comprising:
the nonaqueous electrolyte solution according to claim 5 ; a positive electrode; and
a negative electrode.

Assignees

• Sumitomo Seika Chemicals

Inventors

• Kono Yuki
• Fujimoto Shohei
• Takai Yasuyuki
• Fujita Koji

Classifications

• H01M10/0567 Primary

  characterised by the additives · CPC title

• H01M10/0569

  characterised by the solvents · CPC title

• H01M2004/027

  Negative electrodes · CPC title

• H01M2300/0028

  characterised by the solvent · CPC title

• H01M4/622

  being polymers · CPC title