Silyl ether-containing sulfonate salt

Patent metadata

Field	Value
Publication number	US-12060374-B2
Application number	US-202017433287-A
Country	US
Kind code	B2
Filing date	Feb 4, 2020
Priority date	Feb 27, 2019
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

Provided is a silyl ether-containing sulfonate salt that contains an anion represented by formula (1) and a cation.

(In the formula, R 1 to R 4 are each independently a C1-4 alkyl group. m is an integer from 1 to 3. n is an integer from 2 to 8.)

First claim

The invention claimed is:

1. A silyl ether-containing sulfonate salt comprising:
an anion having the following formula (1); and
an organic cation which is a phosphorus atom-containing organic cation or a nitrogen atom containing organic cation,

wherein:
R 1 to R 4 are each independently an alkyl group having 1 to 4 carbon atoms;
m is an integer of 1 to 3; and
n is an integer of 2 to 8, and

the nitrogen atom-containing organic cation has the following formula (3):

wherein R 21 to R 24 are each independently an alkyl group having 1 to 20 carbon atoms or an alkoxyalkyl group of —(CH 2 ) k —OR, k is 1 or 2, R is a methyl group or an ethyl group, any two of R 21 to R 24 may be bonded to each other to form a ring with a nitrogen atom to which they are bonded, and any two of R 21 to R 24 may be bonded to each other to form a ring with a nitrogen atom to which they are bonded, and the remaining two may also be bonded to each other to form a spiro ring having a nitrogen atom as a spiro atom.

2. The salt according to claim 1 , wherein R 1 to R 3 are the same group.

3. The salt according to claim 2 , wherein R 1 to R 3 are a methyl group.

4. A silyl ether-containing sulfonate salt comprising:
an anion having the following formula (1); and
a cation,

wherein:
R 1 to R 4 are each independently an alkyl group having 1 to 4 carbon atoms;
m is an integer of 1 to 3; and
n is an integer of 2 to 8,

wherein R 1 is a group different from R 2 and R 3 , and R 2 and R 3 are the same group.

5. The salt according to claim 4 , wherein R 1 is an alkyl group having 2 to 4 carbon atoms, and R 2 and R 3 are a methyl group.

6. The salt according to claim 1 , wherein m is 1 or 2.

7. The salt according to claim 1 , wherein R 4 is a methyl group.

8. The salt of claim 1 , wherein n is 2 or 3.

9. The salt according to claim 1 , wherein the salt is an ionic liquid having a melting point of 100° C. or lower.

10. The salt according to claim 9 , wherein the salt is an ionic liquid having a melting point of 25° C. or lower.

Assignees

• Nat Univ Corp Tottori Univ
• Nisshinbo Holdings Inc

Inventors

• Nanjo Masato
• Masuda Gen

Classifications

• H01M2300/0045

  Room temperature molten salts comprising at least one organic ion · CPC title

• H01M10/0569

  characterised by the solvents · CPC title

• H01M10/0567

  characterised by the additives · CPC title

• H01G11/60

  characterised by the solvent · CPC title

• C07F9/5407

  Acyclic saturated phosphonium compounds · CPC title