Electrode plate, electrochemical apparatus, and apparatus

US12315936B2 · kind B2 · utility

Assignee

• CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED · CN

Inventors

• Qingrui Xue · Jiaocheng District, CN
• Jing Li · Beijing, CN
• Wei Li · Jiaocheng District, CN
• Zige Zhang · Jiaocheng District, CN
• Yang Zhang · San Diego, US
• Xianwei Yang · Yichang City, CN

Key dates

• Filing date: Oct 14, 2021
• Grant date: May 27, 2025
• Expiry date: Dec 26, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

This application relates to an electrode plate, including a current collector and an electrode active material layer disposed on at least one surface of the current collector. The current collector includes a support layer and a conductive layer disposed on at least one surface of the support layer, where single-side thickness D2 of the conductive layer satisfies: 30 nm≤D2≤3 μm, the support layer includes a polymer material or a polymer composite material, and thickness D1 of the support layer satisfies: 1 μm≤D1≤20 μm. The electrode active material layer includes an electrode active material, a binder, and a conductive agent, where total thickness Dtotal of the electrode active material layer satisfies: 200≥Dtotal/D1≥1, and based on total weight of the electrode active material layer, the binder content in the electrode active material layer is not less than 1 wt %.