SECONDARY BATTERY, BATTERY PACK, ELECTRONIC EQUIPMENT, ELECTRIC TOOL, ELECTRIC AIRCRAFT, AND ELECTRIC VEHICLE

A secondary battery includes an electrode wound body including a positive electrode and a negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer. The negative electrode includes a negative electrode current collector...

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Bibliographic Details
Main Authors TANABE, Aki, IWAMA, Masayuki
Format Patent
LanguageEnglish
Published 22.08.2024
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:A secondary battery includes an electrode wound body including a positive electrode and a negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer. The negative electrode includes a negative electrode current collector and a negative electrode active material layer. The positive electrode active material layer and the negative electrode active material layer each include a fluorine compound and a nitrogen compound. A weight ratio of a fluorine content to a nitrogen content in the positive electrode active material layer is greater than or equal to 3 and less than or equal to 50. A weight ratio of a fluorine content to a nitrogen content in the negative electrode active material layer is greater than or equal to 1 and less than or equal to 30.
Bibliography:Application Number: US202418650730