Non-aqueous electrolyte secondary battery

The non-aqueous electrolyte secondary battery of the present invention includes a positive electrode containing a lithium-containing transition metal oxide as a positive electrode active material, a negative electrode, a separator interposed between the positive electrode and the negative electrode...

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Bibliographic Details
Main Author DEGUCHI MASAKI,MATSUI TOORU,YOSHIZAWA HIROSHI
Format Patent
LanguageEnglish
Published 05.09.2007
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:The non-aqueous electrolyte secondary battery of the present invention includes a positive electrode containing a lithium-containing transition metal oxide as a positive electrode active material, a negative electrode, a separator interposed between the positive electrode and the negative electrode and a non-aqueous electrolyte. The non-aqueous electrolyte includes a non-aqueous solvent and a solute dissolved therein, and the non-aqueous solvent includes a solvent having an electron-withdrawing substituent. The solvent having an electron-withdrawing substituent includes at least one selected from the group consisting of a sulfonic solvent, a nitrile solvent, a ketonic solvent, a fluorine-containing solvent, a chlorine-containing solvent and a carboxylic acid ester solvent. The separator includes a material containing an electron-withdrawing substituent or an atom having an unshared electron pair.
Bibliography:Application Number: CN200710089758