CATHODE ACTIVE MATERIAL AND SECONDARY BATTERY USING SAME

The present disclosure provides a cathode active material capable of realizing a secondary battery having a sufficiently high discharge capacity and suppressing a decrease in the discharge capacity retention rate of the secondary battery. The cathode active material (10) according to one embodiment...

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Bibliographic Details
Main Author SUZUKI, HIROTETSU
Format Patent
LanguageEnglish
Published 03.12.2020
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 present disclosure provides a cathode active material capable of realizing a secondary battery having a sufficiently high discharge capacity and suppressing a decrease in the discharge capacity retention rate of the secondary battery. The cathode active material (10) according to one embodiment of the present disclosure is provided with particles (1) that contain a lithium composite oxide, anda coating layer (2) that coats the particles (1). The coating layer (2) contains an ammonium phosphate compound and a polymer having a structural unit represented by formula (1). [In formula (1), R is a hydrogen atom or a methyl group].
Bibliography:Application Number: US202016848823