1. 平台首页
  2. 国际专利信息
  • 专利标题:   Anode pole piece used in electrochemical device and electronic device, comprises composite current collector, functional coating and positive electrode active material layer.
  • 专利号:   WO2021189481-A1, CN113892199-A, US2022223836-A1, EP4024505-A1, EP4024505-A4
  • 发明人:   ZHOU H, LI L
  • 专利权人:   NINGDE AMPEREX TECHNOLOGY LTD, NINGDE AMPEREX TECHNOLOGY LTD, NINGDE AMPEREX TECHNOLOGY LTD, NINGDE AMPEREX TECHNOLOGY LTD
  • 国际专利分类:   H01M004/13, H01M004/62, H01M004/64, H01M010/0525, H01M004/131, H01M004/136, H01M004/505, H01M004/58, H01M004/66
  • 专利详细信息:   WO2021189481-A1 30 Sep 2021 H01M-004/13 202187 Pages: 23 Chinese
  • 申请详细信息:   WO2021189481-A1 WOCN081853 27 Mar 2020
  • 优先权号:   CN80036796, EP927573, WOCN081853, CN80036796, US709528

▎ 摘　　要

NOVELTY - Anode pole piece comprises a composite current collector (10) comprising a polymer film (102) and a metal layer (101) respectively provided on two surfaces of the polymer film. A functional coating (20) is provided on surface of the composite current collection, and located between the current collector and an anode active material layer. The functional coating contains a positive electrode active material (30) having a particle size of not greater than 5 mu m. USE - Anode pole piece used in electrochemical device and electronic device. ADVANTAGE - The positive pole piece has high voltage platform, long cycle life, small self-discharge, environment-friendly nuisanceless, and improved safety performance and energy density of the lithium ion battery, and reduces the stress effect of the composite current collector in the cold pressing process. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the positive pole piece. Current collector (10) Functional coating (20) Positive electrode active material (30) Metal layer (101) Polymer film (102)