LITHIUM-ION BATTERY - NTT FACILITIES INC

Title:

LITHIUM-ION BATTERY

Document Type and Number:

WIPO Patent Application WO/2010/101179

Kind Code:

A1

Abstract:

Disclosed is a lithium-ion battery which is highly safe and where fire resistance of a non-aqueous electrolyte during battery failure is maintained over a long period of time. In the lithium-ion battery, two types of organic solvent, EC and DMC, are used in a mixed organic solvent forming the non-aqueous electrolyte, and liquid fire retardants are added to the non-aqueous electrolyte: a phosphazene (A) with a boiling point close to the boiling point of EC, and a phosphazene (B) with a boiling point close to the boiling point of DMC. During battery failure, a separator dissolves, battery temperature rises due to an internal short circuit between the positive and negative plates, and EC and DMC each break down, and at that time, the phosphazenes (A, B), respectively having similar boiling points, break down and act as needed, allowing the fire resistance of the non-aqueous solution to be maintained over a long period of time, and ensuring the safety of the battery during battery failure.

More Like This:

WO/2016/208738	ADDITIVE FOR NONAQUEOUS ELECTROLYTE SOLUTION, MANUFACTURING METHOD FOR SAME, NONAQUEOUS ELECTROLYTE SOLUTION, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
WO/2012/118179	LITHIUM ION BATTERY
JP4161422	Non-aqueous electrolyte secondary battery

Inventors:

TSUJIKAWA TOMONOBU (JP)
MATSUSHIMA TOSHIO (JP)
ICHIMURA MASAHIRO (JP)
OGATA TSUTOMU (JP)
ARAKAWA MASAYASU (JP)
YABUTA KAHOU (JP)
MATSUSHITA TAKASHI (JP)
ITOH YOUHEI (JP)
TERADA MASAYUKI (JP)
HAYASHI KOJI (JP)
KURITA KENJI (JP)
KURODA YUKI (JP)

Application Number:

PCT/JP2010/053427

Publication Date:

September 10, 2010

Filing Date:

March 03, 2010

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NTT FACILITIES INC (JP)
SHIN KOBE ELECTRIC MACHINERY (JP)
TSUJIKAWA TOMONOBU (JP)
MATSUSHIMA TOSHIO (JP)
ICHIMURA MASAHIRO (JP)
OGATA TSUTOMU (JP)
ARAKAWA MASAYASU (JP)
YABUTA KAHOU (JP)
MATSUSHITA TAKASHI (JP)
ITOH YOUHEI (JP)
TERADA MASAYUKI (JP)
HAYASHI KOJI (JP)
KURITA KENJI (JP)
KURODA YUKI (JP)

International Classes:

H01M10/0567; H01M10/0525; H01M10/0569

Foreign References:

JP2005190869A	2005-07-14
JP2009021040A	2009-01-29
JP2006059682A	2006-03-02
JPH11219692A	1999-08-10
JP2005108503A	2005-04-21
JPH05151971A	1993-06-18
JP2001217007A	2001-08-10

Other References: