EVALUATION METHOD FOR A NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

A non-aqueous electrolyte secondary battery according to the present invention includes a positive electrode, a negative electrode, and a non-aqueous electrolyte solution. The negative electrode includes a coating derived from lithium bis(oxalate)borate. Assuming that an intensity of a peak attribut...

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Bibliographic Details
Main Authors NAKANO, TOMOHIRO, SAKANO, MITSURU, KIKUCHI, KYOKO, ONIZUKA, HIROSHI
Format Patent
LanguageEnglish
French
German
Published 26.10.2016
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
TESTING
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Summary:A non-aqueous electrolyte secondary battery according to the present invention includes a positive electrode, a negative electrode, and a non-aqueous electrolyte solution. The negative electrode includes a coating derived from lithium bis(oxalate)borate. Assuming that an intensity of a peak attributable to a three-coordinate structure of the coating measured by an XAFS method is represented by ± and an intensity of a peak attributable to a four-coordinate structure of the coating measured by the XAFS method is represented by ², the coating formed on the surface of the negative electrode satisfies a condition of ±/(±+²) ‰¥ 0.4. Accordingly, it is possible to provide a non-aqueous electrolyte secondary battery capable of reliably obtaining the effect due to the formation of a coating.
Bibliography:Application Number: EP20120846081