RECHARGEABLE BATTERY, FUNCTIONAL POLYMER, AND METHOD FOR SYNTHESIS THEREOF

WIPO Patent Application WO/2011/152471

A2

Provided is a rechargeable battery with a higher degree of safety. Specifically provided is a rechargeable battery constituted so as to prevent overcharging. The rechargeable battery is a battery which uses a positive electrode material containing an n-doped region and p-doped region, and which is capable of multi-electron reactions, and the electrolyte salt concentration and absolute quantities of electrolytes (solid or liquid) are controlled. At the positive electrodes of this rechargeable battery, desorption of lithium ions initially occurs at a low potential (n-dope potential) during charging, then absorption of anions occurs at a higher potential (p-dope potential). At the n-dope potential, the carrier of ion current is lithium ions alone, but at the p-dope potential anion current flows on the positive electrode side, and lithium ion current on the negative electrode side. As a result, before overcharging occurs, the electrolyte concentration drops and internal resistance rises, thereby avoiding overcharging.

UEMACHI HIROSHI (JP)

PCT/JP2011/062631

December 08, 2011

June 01, 2011

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POLYTHIONE CO LTD (JP)
UEMACHI HIROSHI (JP)

H01M4/60; C07C335/28; C07D285/00; C08F8/34; C08G18/71; C08G69/00; C08G73/00; C08G75/00; C08G77/392; C08G85/00

WO2002042350A1	2002-05-30
WO2001072865A1	2001-10-04

JP2005194510A	2005-07-21
JP2005194511A	2005-07-21
JP2010219868A	2010-09-30

H.UEMACHI ET AL.: 'Poly(1,4-phenylene-1,2, 4-dithiazol-3'5'-yl) : the new redox system for lithium secondary batteries' ELECTROCHIMICA ACTA vol. 46, 2001, pages 2305 - 2312

YOKOI TOSHIHIRO (JP)
Toshihiro Yokoi (JP)

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