LITHIUM SECONDARY BATTERY

The object of an exemplary embodiment of the invention is to provide a lithium secondary battery which has high energy density by containing a positive electrode active substance operating at a potential of 4.5 V or higher with respect to lithium and which has excellent cycle property. An exemplary...

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Main Authors HATAKEYAMA, Hiroshi, NOGUCHI, Takehiro, SAITHO, Shinsaku, SASAKI, Hideaki, WAKI, Ippei, KATOU, Yuukou, KANEKO, Shinako, UEHARA, Makiko
Format Patent
LanguageEnglish
French
German
Published 16.10.2013
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 object of an exemplary embodiment of the invention is to provide a lithium secondary battery which has high energy density by containing a positive electrode active substance operating at a potential of 4.5 V or higher with respect to lithium and which has excellent cycle property. An exemplary embodiment of the invention is an lithium secondary battery, which comprises a positive electrode comprising a positive electrode active substance and an electrolyte liquid comprising a nonaqueous electrolyte solvent; wherein the positive electrode active substance operates at a potential of 4.5 V or higher with respect to lithium; and wherein the nonaqueous electrolyte solvent comprises a fluorine-containing phosphate represented by a prescribed formula.
Bibliography:Application Number: EP20110847621