Electrode active material for electricity storage device, and electricity storage device using same

Patent metadata

Field	Value
Publication number	US-9466839-B2
Application number	US-201113583880-A
Country	US
Kind code	B2
Filing date	Mar 11, 2011
Priority date	Mar 12, 2010
Publication date	Oct 11, 2016
Grant date	Oct 11, 2016

Abstract

The present invention provides an electrode active material for an electricity storage device, having a structure represented by following formula (1). In the formula (1), R 1 to R 6 each denote independently a hydrogen atom (except for a case where all of R 1 to R 6 denote hydrogen atoms), a halogen atom, an optionally substituted phenyl group, an optionally substituted heterocyclic group, or an optionally substituted hydrocarbon group having 1 to 4 carbon atoms.

First claim

The invention claimed is:

1. An electrode for an electricity storage device, the electrode comprising:
an electrode current collector; and
an electrode active material disposed on the electrode current collector, the electrode active material having a structure represented by the following formula (1):

where R 1 to R 6 each denote independently a hydrogen atom (except for a case where all of R 1 to R 6 denote hydrogen atoms), a halogen atom, an optionally substituted phenyl group, an optionally substituted heterocyclic group, or an optionally substituted hydrocarbon group having 1 to 4 carbon atoms,
wherein the electrode active material is a polymer compound containing the structure represented by the formula (1) as a repeating unit.

2. The electrode for an electricity storage device according to claim 1 , wherein R 1 , R 3 , R 4 and R 6 each denote a hydrogen atom.

3. The electrode for an electricity storage device according to claim 1 , wherein the polymer compound further contains a repeating unit including no quinone portion.

4. An electrode active material for an electricity storage device, having a repeating unit represented by the following formula (6):

where R 1 to R 4 each denote independently a hydrogen atom, a halogen atom, an optionally substituted hydrocarbon group, or an optionally substituted heterocyclic group, and
n denotes an integer of 2 or more.

5. An electrode active material for an electricity storage device, having a repeating unit represented by the following formula (10):

where R 1 and R 2 each denote independently a hydrogen atom, a halogen atom, an optionally substituted hydrocarbon group, or an optionally substituted heterocyclic group,
X denotes a linker, and
n denotes an integer of 2 or more.

6. An electrode active material for an electricity storage device, having two repeating units represented by the following formula (19):

where R 1 , R 2 and R 3 each denote independently a hydrogen atom, a halogen atom, an optionally substituted hydrocarbon group, or an optionally substituted heterocyclic group,
R 7 denotes an alkylene chain having 1 to 4 carbon atoms, an alkenylene chain having 1 to 4 carbon atoms, an arylene chain, an ester bond, an amide bond, or an ether bond, and is optionally substituted,
R 9 contains at least one selected from the group consisting of an ester group, an ether group, a carbonyl group, a cyano group, a nitro group, a nitroxyl group, an alkyl group, a phenyl group, an alkylthio group, a sulfone group, and a sulfoxide group,
R 8 and R 10 each denote independently a saturated aliphatic group having 1 to 4 carbon atoms, a phenyl group, or a hydrogen atom, and
n and m each denote an integer of 2 or more.

7. An electricity storage device comprising a positive electrode, a negative electrode, and an electrolyte,
wherein at least one selected from the positive electrode and the negative electrode is the electrode for an electricity storage device according to claim 1 .

8. An electricity storage device comprising:
a positive electrode that is the electrode according to claim 1 ;
a negative electrode containing a negative electrode active material capable of absorbing and desorbing a lithium ion; and
an electrolyte containing a salt composed of an anion and a lithium cation.

9. The electricity storage device according to claim 8 , wherein the electrolyte is a liquid electrolyte further containing an organic solvent.

10. An electrode for an electricity storage device, the electrode comprising,
an electrode current collector; and
the electrode active material according to claim 4 disposed on the electrode current collector.

11. An electricity storage device comprising a positive electrode, a negative electrode, and an electrolyte,
wherein at least one selected from the positive electrode and the negative electrode is the electrode for an electricity storage device according to claim 10 .

12. An electricity storage device comprising:
the positive electrode that is the electrode according to claim 10 ;
a negative electrode containing a negative electrode active material capable of absorbing and desorbing a lithium ion; and
an electrolyte containing a salt composed of an anion and a lithium cation.

13. The electricity storage device according to claim 12 , wherein the electrolyte is a liquid electrolyte further containing an organic solvent.

14. An electrode for an electricity storage device, the electrode comprising,
an electrode current collector; and
the electrode active material according to claim 5 disposed on the electrode current collector.

15. An electricity storage device comprising a positive electrode, a negative electrode, and an electrolyte,
wherein at least one selected from the positive electrode and the negative electrode is the electrode for an electricity storage device according to claim 14 .

16. An electricity storage device comprising:
the positive electrode that is the electrode according to claim 14 ;
a negative electrode containing a negative electrode active material capable of absorbing and desorbing a lithium ion; and
an electrolyte containing a salt composed of an anion and a lithium cation.

17. The electricity storage device according to claim 16 , wherein the electrolyte is a liquid electrolyte further containing an organic solvent.

18. An electrode for an electricity storage device, the electrode comprising,
an electrode current collector; and
the electrode active material according to claim 6 disposed on the electrode current collector.

19. An electricity storage device comprising a positive electrode, a negative electrode, and an electrolyte,
wherein at least one selected from the positive electrode and the negative electrode is the electrode for an electricity storage device according to claim 18 .

20. An electricity storage device comprising:
the positive electrode that is the electrode according to claim 18 ;
a negative electrode containing a negative electrode active material capable of absorbing and desorbing a lithium ion; and
an electrolyte containing a salt composed of an anion and a lithium cation.

21. The electricity storage device according to claim 20 , wherein the electrolyte is a liquid electrolyte further containing an organic solvent.

Assignees

• Otsuka yu
• Hojo Nobuhiko
• Tsukagoshi Takafumi
• Nokami Toshiki
• Yoshida Jun-Ichi
• Panasonic Corp

Inventors

• Otsuka yu
• Hojo Nobuhiko
• Tsukagoshi Takafumi
• Nokami Toshiki
• Yoshida Jun-Ichi

Classifications

• H01M10/0566

  Liquid materials · CPC title

• H01G11/50

  specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation · CPC title

• H01M10/052

  Li-accumulators · CPC title

• H01M4/137

  Electrodes based on electro-active polymers · CPC title

• Y02E60/122

  Cross-Sectional Technologies · mapped topic