Elektrochemische Vorrichtung und Elektronische Vorrichtung
Anmelder: Ningde Amperex Technology Limited 🇨🇳
Details
- Veröffentlichungs-Nr.
- EP4773221
- Anmeldetag
- 20. Oktober 2023
- Veröffentlichung
- 24. April 2025
- Rechtsraum
- EP
- IPC
- H01M4/36, H01M4/505, H01M4/525
Abstract
Provided are an electrochemical device and an electronic device. The electrochemical device includes a positive electrode plate. The positive electrode plate includes a positive electrode active material layer, where the positive electrode active material layer includes a first positive electrode active material and a second positive electrode active material. The first positive electrode active material contains element Ni and element Mn, and the second positive electrode active material contains element Ni and element Co. A relationship curve of a capacity-voltage differential dQ/dV with respect to voltage V during discharge of the electrochemical device includes at least two peaks above 3.8 V. The electrochemical device can achieve good cycling performance and safety performance while meeting the demand for high energy density.
Anmelder
- Firma
- Ningde Amperex Technology Limited
- Land
- 🇨🇳 China
Chinesischer Hersteller von Lithium-Ionen-Batterien mit Sitz in Ningde, mehrheitlich im Besitz des japanischen Konzerns TDK. Aus dem Unternehmen ging 2011 die heute eigenständige CATL hervor.
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