Secondary battery and method for charging and discharging secondary battery

Patent metadata

Field	Value
Publication number	US-9711824-B2
Application number	US-201514707384-A
Country	US
Kind code	B2
Filing date	May 8, 2015
Priority date	Nov 9, 2012
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

A secondary battery that has an electrode active material mainly composed of a low-molecular-weight multi-electron organic compound that has two or more electrons to be involved in a battery electrode reaction, and a solvent for an electrolyte solution that contains a sulfone compound. Apart of the electrode active material is dissolved in and reacted with the electrolyte solution at the first charge and discharge, thereby oligomerizing a part of the electrode active material.

First claim

The invention claimed is:

1. A secondary battery comprising:
an electrode active material; and
an electrolyte solution having an electrolyte salt in a solvent,
wherein the electrode active material contains, as a main component thereof, a multi-electron organic compound which has two or more electrons to be involved in a battery electrode reaction,
the solvent contains a sulfone compound, and
a part of the electrode active material is oligomerized at least at a first time of charge and discharge of the secondary battery.

2. The secondary battery according to claim 1 , wherein the sulfone compound is represented by the general formula:

wherein R 1 and R 2 are at least one of a linear alkyl group and a branched alkyl group respectively having 1 to 5 carbon atoms.

3. The secondary battery according to claim 2 , wherein R 1 and R 2 are the same or are linked with each other to forma saturated or unsaturated ring.

4. The secondary battery according to claim 1 , wherein the multi-electron organic compound contains, in structural unit thereof, at least one selected from the group consisting of dithione compounds having a dithione structure, dione compounds having a dione structure, and diamine compounds having a diamine structure.

5. The secondary battery according to claim 4 , wherein the dithione compound is represented by the general formula:

wherein R 3 and R 4 are any of a substituted or unsubstituted amino group, a substituted or unsubstituted imino group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkylene group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted arylamino group, a substituted or unsubstituted alkylamino group, a substituted or unsubstituted thioaryl group, a substituted or unsubstituted thioalkyl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted formyl group, a substituted or unsubstituted silyl group, a substituted or unsubstituted cyano group, a substituted or unsubstituted nitro group, a substituted or unsubstituted nitroso group, a substituted or unsubstituted carboxyl group, a substituted or unsubstituted alkoxycarbonyl group, and linking groups composed of combination of one or more thereof.

6. The secondary battery according to claim 5 , wherein R 3 and R 4 are the same or are linked with each other to forma saturated or unsaturated cyclic structure.

7. The secondary battery according to claim 4 , wherein the dithione compound is represented by the general formula:

wherein R 5 and R 7 are any of a substituted or unsubstituted amino group, a substituted or unsubstituted imino group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkylene group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted arylamino group, a substituted or unsubstituted alkylamino group, a substituted or unsubstituted thioaryl group, a substituted or unsubstituted thioalkyl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted formyl group, a substituted or unsubstituted silyl group, a substituted or unsubstituted cyano group, a substituted or unsubstituted nitro group, a substituted or unsubstituted nitroso group, a substituted or unsubstituted carboxyl group, a substituted or unsubstituted alkoxycarbonyl group and linking groups composed of combination of one or more thereof, and R 6 is at least one of a substituted or unsubstituted alkylene group, a substituted or unsubstituted arylene group and a substituted or unsubstituted imino group.

8. The secondary battery according to claim 7 , wherein R 5 and R 7 are the same or are linked with each other to forma saturated or unsaturated cyclic structure.

9. The secondary battery according to claim 7 , wherein R 6 is the substituted or unsubstituted imino groups, and the imino groups are linked with each other.

10. The secondary battery according to claim 4 , wherein the dione compound is represented by the general formula:

wherein R 8 and R 9 are any of a substituted or unsubstituted amino group, a substituted or unsubstituted imino group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkylene group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted arylamino group, a substituted or unsubstituted alkylamino group, a substituted or unsubstituted thioaryl group, a substituted or unsubstituted thioalkyl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted formyl group, a substituted or unsubstituted silyl group, a substituted or unsubstituted cyano group, a substituted or unsubstituted nitro group, a substituted or unsubstituted nitroso group, a substituted or unsubstituted carboxyl group, a substituted or unsubstituted alkoxycarbonyl group and linking groups composed of combination of one or more thereof.

11. The secondary battery according to claim 10 , wherein R 8 and R 9 are the same or are linked with each other to forma saturated or unsaturated cyclic structure.

12. The secondary battery according to claim 4 , wherein the dione compound is represented by the general formula:

wherein R 10 and R 12 are any of a substituted or unsubstituted amino group, a substituted or unsubstituted imino group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkylene group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted arylamino group, a substituted or unsubstituted alkylamino group, a substituted or unsubstituted thioaryl group, a substituted or unsubstituted thioalkyl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted formyl group, a substituted or unsubstituted silyl group, a substituted or unsubstituted cyano group, a substituted or unsubstituted nitro group, a substituted or unsubstituted nitroso group, a substituted or unsubstituted carboxyl group, a substituted or unsubstituted alkoxycarbonyl group and linking groups composed of combination of one or more thereof, and R 11 is at least one of a substituted or unsubstituted alkylene group, a substituted or unsubstituted arylene group and a substituted or unsubstituted imino

Assignees

• Murata Manufacturing Co
• Carlit Holdings Co Ltd

Inventors

• Onoue Tomoaki
• Sato Masaharu
• Kokubu Eiji
• Chiba Kazumi
• Yanada Kazato
• Kiryu Toshiyuki
• Takada Teruhisa
• Mokudai Hidehisa
• Sukigara Toru

Classifications

• H01M4/1399

  of electrodes based on electro-active polymers · CPC title

• H01M10/052

  Li-accumulators · CPC title

• H01M10/44

  Methods for charging or discharging (circuits for charging H02J7/00) · CPC title

• H01M4/602

  Polymers · CPC title

• H01M2220/30

  Batteries in portable systems, e.g. mobile phone, laptop · CPC title