• 专利标题:   Electrochemical device used in electronic device, comprises positive electrode, cathode comprising cathode active material layer, isolation film, bonding layer, and lithium compound layer comprising lithium carbonate and/or lithium oxide.
  • 专利号:   WO2021174443-A1, CN113614969-A, IN202227050770-A, EP4102609-A1, US2023058850-A1, JP2023512967-W, EP4102609-A4
  • 发明人:   ZHONG H
  • 专利权人:   NINGDE AMPEREX TECHNOLOGY LTD, DONGGUAN AMPEREX TECHNOLOGY LTD, DONGGUAN AMPEREX TECHNOLOGY LTD, NINGDE AMPEREX TECHNOLOGY LTD, NINGDE AMPEREX TECHNOLOGY LTD, DONGGUAN AMPEREX TECHNOLOGY LTD, DONGGUAN AMPEREX TECHNOLOGY LTD, NINGDE AMPEREX TECHNOLOGY LTD, DONGGUAN AMPEREX TECHN LTD
  • 国际专利分类:   H01M010/0525, H01M050/409, C07D471/04, H01L027/105, A61P025/00, B29L031/00, G01J003/18, H01M004/583, H01M004/62, H01M050/46, H01M010/0585, H01M004/13, H01M004/36, H01M004/38, H01M004/485, H01M004/587, H01M050/434, H01M050/443, H01M050/449, H01M050/451, H01M050/457, H01M004/02, H01M004/131, H01M004/133, H01M004/1393, H01M004/48, H01M050/414, H01M050/417, H01M050/446
  • 专利详细信息:   WO2021174443-A1 10 Sep 2021 H01M-010/0525 202180 Pages: 33 Chinese
  • 申请详细信息:   WO2021174443-A1 WOCN077769 04 Mar 2020
  • 优先权号:   CN80016450, EP922559, JP544320, WOCN077769, CN80016450, US17909075, IN27050770

▎ 摘  要

NOVELTY - Electrochemical device comprises a positive electrode (40), a negative electrode (30), a separator (10), a binding layer (20), and a lithium compound layer, where the negative electrode comprises a negative electrode active material layer (302). The separator is disposed between the positive electrode and the negative electrode, where the binding layer is disposed between the negative electrode active material layer and the separator. The lithium compound layer is disposed between the binding layer and the negative electrode active material layer. The lithium compound layer comprises lithium carbonate and lithium oxide. USE - Electrochemical device i.e. lithium ion battery used in electronic device e.g. mobile phone, flat, notebook computer and unmanned aerial vehicle (claimed). ADVANTAGE - The electrochemical device exhibits a higher energy density, a greater magnification, higher safety and less capacity attenuation after repeated charging and discharging process. The bonding layer is set between the lithium compound layer and the isolation film, which can effectively improve the bonding force between the cathode and isolation film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the electrode assembly of an electrochemical device. Separator (10) Binding layer (20) Negative electrode (30) Positive electrode (40) Negative electrode active material layer (302)