Elektrolytlösung, Sekundärbatterie, Batteriemodul, Batteriepack und Stromgetriebene Vorrichtung

Details

Veröffentlichungs-Nr.

EP4734215

Anmeldetag

30. Juli 2021

Veröffentlichung

29. April 2026

Rechtsraum

EP

IPC

H01M10/0569

Abstract

The present application discloses an electrolyte solution, a secondary battery, a battery module, a battery pack and a powered device. The electrolyte solution comprises an organic solvent and an additive, the organic solvent comprises a first organic solvent shown in Formula 1, and the additive comprises a first additive selected from one or more of compounds represented by Formula 2A and Formula 2B. In Formula 1, R<1> and R<2> are each independently one of C1-C3 alkyl and C1-C3 haloalkyl; in Formula 2A, R<21>, R<22>, R<23>, and R<24> are each independently one of single bond and methylene; in Formula 2B, R<31>, R<32>, R<33>, and R<34> are each independently one of a single bond and methylene, and R<4> is one of a single bond, -O-, C1-C3 alkylene, C1-C3 haloalkylene, and C1-C3 oxaalkylene. The secondary battery of the present application has good fast charging performance while ensuring long cycle life and storage life. <img class="EMIRef" id="a7fb7e6d-80ee-4e58-b84d-aa307d6443be-ia01" /> <img class="EMIRef" id="a7fb7e6d-80ee-4e58-b84d-aa307d6443be-ia02" /> <img class="EMIRef" id="a7fb7e6d-80ee-4e58-b84d-aa307d6443be-ia03" />

Anmelder

Firma

Contemporary Amperex Technology (Hong Kong) Limited

Land

🇭🇰 Hongkong

Fachgebiete