• 专利标题:   Silicon-containing negative electrode slurry for preparing negative electrode sheet of lithium-ion battery, comprises silicon-containing material, conductive agent, binder, modified additive and dispersant.
  • 专利号:   CN114614010-A
  • 发明人:   ZHOU Y, DAI Z, HUA M, LI Q, ZHANG J, DUAN H
  • 专利权人:   WANHUA CHEM GROUP CO LTD, WANHUA CHEM SICHUAN CO LTD
  • 国际专利分类:   H01M010/0525, H01M004/62
  • 专利详细信息:   CN114614010-A 10 Jun 2022 H01M-004/62 202273 Chinese
  • 申请详细信息:   CN114614010-A CN10176705 25 Feb 2022
  • 优先权号:   CN10176705

▎ 摘  要

NOVELTY - A silicon-containing negative electrode slurry comprises silicon-containing material, conductive agent, binder, modified additive and dispersant. USE - Silicon-containing slurry used for preparing negative electrode sheet of lithium-ion battery (all claimed). ADVANTAGE - The addition of the modified additive provides sufficient buffer space for the volume expansion of the silicon-containing negative electrode material in the charging and discharging processes, improves the dispersibility of each component in the slurry, reduces the resistance of the negative electrode, increases the wettability of the negative electrode and the electrolyte, and plays a role in protecting the interface of the negative electrode in the circulating process. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of the negative electrode slurry; (2) Use of the negative electrode slurry for preparing negative electrode sheet of lithium-ion battery which involves coating the slurry on copper foil.