IP Library Granted Patent US 8,512,900
Granted Patent B2
US 8,512,900 · App. 12/704,241 · Granted Aug 20, 2013

Nonaqueous electrolytic solution secondary battery

Inventor: Atsumichi Kawashima (Fukushima, JP)
Assignee: Sony Corporation
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Quick Facts
Patent No.
US 8,512,900
App. No.
12/704,241
Granted
Aug 20, 2013
Kind
B2
Abstract

A nonaqueous electrolytic solution secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent. The nonaqueous solvent contains 80% by mass or more of a cyclic carbonate which does not have a carbon-carbon multiple bond and which does not contain a halogen and contains a cyclic sulfone compound having any one of structures represented by the following formulae (1) to (4): wherein each of R1 and R2 represents C m H 2m where 1≦m≦4. Also, each of R3 to R10 independently represents C n H 2n+1 where 1≦n≦4.

Claims (34)

1. A nonaqueous electrolytic solution secondary battery comprising:

a positive electrode;

a negative electrode; and

a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent, wherein

the nonaqueous solvent contains 80% by mass or more of a cyclic carbonate which does not have a carbon-carbon multiple bond and which does not contain a halogen, and contains a cyclic sulfone compound having any one of structures represented by the following formulae (1) to (4)

wherein each of R1 and R2 represents C m H 2m where 1≦m≦4 and each of R3 to R10 independently represents C n H 2n+1 where 1≦n≦4, and

wherein the cyclic carbonate which does not have a carbon-carbon multiple bond and which does not contain a halogen is at least one member selected from the group consisting of: ethylene carbonate, propylene carbonate, butylene carbonate and trimethylene carbonate.

2. The nonaqueous electrolytic solution secondary battery according to claim 1 , wherein

the cyclic carbonate which does not have a carbon-carbon multiple bond and which does not contain a halogen is at least one member selected from the group consisting of ethylene carbonate and propylene carbonate.

3. The nonaqueous electrolytic solution secondary battery according to claim 1 , wherein

a content of the cyclic sulfone compound in the nonaqueous solvent is 0.1% by mass or more and not more than 2.0% by mass.

4. The nonaqueous electrolytic solution secondary battery according to claim 1 , wherein

the nonaqueous solvent further contains a cyclic carbonate having a carbon-carbon multiple bond.

5. The nonaqueous electrolytic solution secondary battery according to claim 1 , wherein

the nonaqueous solvent further contains a halogenated cyclic carbonate.

6. The nonaqueous electrolytic solution secondary battery according to claim 1 , wherein

the nonaqueous solvent further contains a lactone.

7. The nonaqueous electrolytic solution secondary battery according to claim 1 , comprising an exterior member for housing made of a laminated film.

8. The nonaqueous electrolytic solution secondary battery according to claim 1 , wherein

the nonaqueous electrolytic solution is held by a polymer compound.

9. The nonaqueous electrolytic solution secondary battery according to claim 8 , wherein

the polymer compound is polyvinylidene fluoride or a copolymer thereof.

10. The nonaqueous electrolytic solution secondary battery according to claim 8 , wherein a content of the polymer compound ranges from 0.1% by mass to 10% by mass relative to a total mass of the electrolytic solution and the polymer compound.

11. The nonaqueous electrolytic solution secondary battery according to claim 8 , wherein the negative electrode comprises a negative electrode active material layer, and a thickness of the negative electrode active material layer ranges from 40 μm to 100 μm.

12. The nonaqueous electrolytic solution secondary battery according to claim 1 , wherein the sulfone compound has a structure represented by the following formulae (1) and (4)

wherein R1 represents C m H 2m where 1≦m≦4 and each of R7 to R10 independently represents C n H 2n+1 where 1≦n≦4.

13. The nonaqueous electrolytic solution secondary battery according to claim 1 , wherein the sulfone compound is 1,3-propanedisulfonic anhydride.

14. A nonaqueous electrolytic solution comprising:

an electrolyte salt dissolved in a nonaqueous solvent, wherein

the nonaqueous solvent contains 80% by mass or more of a cyclic carbonate which does not have a carbon-carbon multiple bond and which does not contain a halogen, and contains a cyclic sulfone compound having any one of structures represented by the following formulae (1) to (4)

wherein each of R1 and R2 represents C m H 2m where 1≦m≦4; and each of R3 to R10 independently represents C n H 2n+1 where 1≦n≦4 and

wherein the cyclic carbonate which does not have a carbon-carbon multiple bond and which does not contain a halogen is at least one member selected from the group consisting of: ethylene carbonate, propylene carbonate, butylene carbonate and trimethylene carbonate.

15. The nonaqueous electrolytic solution according to claim 14 , wherein

the cyclic carbonate which does not have a carbon-carbon multiple bond and which does not contain a halogen is at least one member selected from the group consisting of ethylene carbonate and propylene carbonate.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 25, 2010
From: KAWASHIMA, ATSUMICHI
To: SONY CORPORATION
Reel/Frame 023989/0035 →
Priority Claims (1)
JP P2009-036946 · Feb 19, 2009 · national
Continuity (1)
Related Publication 20100209785A1 · Aug 19, 2010