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SECONDARY BATTERY AND ELECTRICAL APPARATUS

Application US20260081221A1 Kind: A1 Mar 19, 2026

Assignee

CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventors

Jiao LIU, Limei ZHANG, Peipei CHEN, Jiamo REN

Abstract

A secondary battery and an electrical apparatus are disclosed. The secondary battery includes a negative electrode plate and a non-aqueous electrolyte solution. The negative electrode plate includes a negative electrode active material. The volume average particle size Dv50 of the negative electrode active material is 6-20 μm. The non-aqueous electrolyte solution includes an additive and a non-aqueous solvent. The additive includes a cyclic sulfate compound represented by Formula (I). The non-aqueous solvent includes ethylene carbonate.

CPC Classifications

H01M 10/0567 H01M 4/583 H01M 4/622 H01M 4/625 H01M 10/0569 H01M 2004/021 H01M 2004/027 H01M 2300/0037

Filing Date

2025-11-20

Application No.

19395510