LITHIUM ION SECONDARY BATTERY

Title:

LITHIUM ION SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2014/080871

Kind Code:

A1

Abstract:

The present invention pertains to a lithium ion secondary battery comprising a positive electrode and a non-aqueous electrolyte including a non-aqueous electrolyte solvent. The lithium ion secondary battery is characterized by: the positive electrode including a positive electrode active substance having an operating potential of at least 4.5 V relative to lithium metal; the non-aqueous electrolyte solvent including a fluorinated organophosphate indicated by a prescribed formula and at least one type selected from a group comprising sulfonic compounds indicated by the prescribed formula; and by including at least 5 vol% of sulfonic compound in the non-aqueous electrolyte solvent.

Inventors:

SASAKI HIDEAKI (JP)
NOGUCHI TAKEHIRO (JP)
KATOU YUUKOU (JP)
TAKAHASHI MAKIKO (JP)

Application Number:

PCT/JP2013/081086

Publication Date:

May 30, 2014

Filing Date:

November 18, 2013

Export Citation:

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Assignee:

NEC CORP (JP)

International Classes:

H01M10/0567; H01M4/505; H01M4/525; H01M10/052; H01M10/0568; H01M10/0569; H01M10/058

Domestic Patent References:

WO2008133112A1	2008-11-06
WO2012133902A1	2012-10-04
WO2012077712A1	2012-06-14
WO2013069474A1	2013-05-16
WO2013129428A1	2013-09-06
WO2013183655A1	2013-12-12
WO2012077712A1	2012-06-14

Foreign References:

JP2000077098A	2000-03-14
JP2013030284A	2013-02-07
JP3821495B2	2006-09-13
JP4972915B2	2012-07-11
JP3304187B2	2002-07-22
JP4416991B2	2010-02-17
JP2003100342A	2003-04-04

Other References: