Sekundärbatterie, Elektrische Vorrichtung, Positivelektrodenaktivmaterial und Herstellungsverfahren dafür sowie Positivelektrodenfolie
Anmelder: Contemporary Amperex Technology Co., Ltd., CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED 🇨🇳
Details
- Veröffentlichungs-Nr.
- EP4779709
- Anmeldetag
- 13. Juni 2024
- Veröffentlichung
- 5. Juni 2025
- Rechtsraum
- EP
Abstract
This application relates to the field of battery technology, and discloses a secondary battery, an electrical device, a positive active material and a preparation method thereof, and a positive electrode plate. The secondary battery includes a positive electrode plate. The positive electrode plate includes a lithium-containing phosphate positive active particle. The lithium-containing phosphate positive active particle includes a center portion and a surface portion. The surface portion is continuously or discontinuously distributed on a surface of the center portion. A thickness of the surface portion is less than or equal to 10 nm. A lithium content of the center portion is greater than a lithium content of the surface portion. The secondary battery exhibits relatively high cycle performance.
Anmelder
- Firmen
- Contemporary Amperex Technology Co., Ltd.
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) 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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