Lithiumsekundärbatterie und Elektrische Vorrichtung
Anmelder: Contemporary Amperex Technology Co., Limited 🇨🇳
Details
- Veröffentlichungs-Nr.
- EP4734209
- Anmeldetag
- 27. Februar 2024
- Veröffentlichung
- 23. Januar 2025
- Rechtsraum
- EP
- IPC
- H01M10/056
Abstract
Provided in the present application are a lithium secondary battery and an electric device. The lithium secondary battery comprises an electrolyte and a negative electrode sheet, wherein the electrolyte comprises a chain carboxylic ester and a cyclic carbonate, and the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one side of the negative electrode current collector. Based on the total mass of the electrolyte, the mass content W1 of the chain carboxylic ester and the mass content W2 of the cyclic carbonate satisfy: 0.1 ≤ W2/W1 ≤ 2, and the mass content W1 of the chain carboxylic ester and the thickness H of the negative electrode film layer satisfy: 0.2 ≤ H/100W1 ≤ 20, with the unit of H being µm.The lithium secondary battery has good fast charging performance and cycling performance.
Anmelder
- Firma
- Contemporary Amperex Technology Co., Limited
- Land
- 🇨🇳 China
Chinesisches Unternehmen mit Sitz der Konzerngesellschaft in Hongkong, das Batteriezellen und Energiespeicherlösungen für Elektrofahrzeuge und Stromnetze entwickelt und herstellt.
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