• 专利标题:   Conductive composition for secondary battery, comprises polymeric material, carbon nanomaterial, and anionic stabilizing agent.
  • 专利号:   WO2021254155-A1, TW202201834-A, CN114287075-A, EP4094315-A1, AU2021292158-A1, KR2023028322-A, CA3183231-A1, JP2023529523-W
  • 发明人:   HO K P, JIANG Y, SUN X, HE J, SUN X Y
  • 专利权人:   GUANGDONG HAOZHI TECHNOLOGY CO LTD, GUANGDONG HAOZHI TECHNOLOGY CO LTD, GRST INT LTD, GRST INT LTD, GRST INT LTD
  • 国际专利分类:   H01M004/62, H01M004/04, H01M004/583, C08F220/06, C08F220/44, C08F220/56, C08L033/00, H01M004/13, H01M004/139
  • 专利详细信息:   WO2021254155-A1 23 Dec 2021 H01M-004/62 202208 Pages: 91 English
  • 申请详细信息:   WO2021254155-A1 WOCN097996 02 Jun 2021
  • 优先权号:   WOCN096672, WOCN097996, CN80005112, CA3183231, KR746322

▎ 摘  要

NOVELTY - A conductive composition comprises a polymeric material, a carbon nanomaterial and an anionic stabilizing agent. USE - Conductive composition used in slurry for forming electrode (all claimed) of secondary battery e.g. lithium-ion batteries for consumer electronics, electric vehicles and grid energy storage. ADVANTAGE - The conductive composition has excellent electrochemical stability and high adhesion to the electrode materials and current collectors, and provides battery with excellent cycle life and high discharging capability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) slurry, which comprises an electrode active material and the conductive composition; and (2) preparation of conductive composition, which involves dispersing (101) the carbon nanomaterial in an aqueous solvent to form a suspension (A), dispersing (102) the anionic stabilizing agent in the suspension (A) to form a suspension (B), and dispersing (103) the polymeric material in the suspension (B). The polymeric material comprises a copolymer comprising a structural unit derived from an acid group-containing monomer and a structural unit derived from a polar group-containing monomer. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart of aqueous electrode slurry preparation process. Slurry preparation process (100) Dispersing processes (101-105) Homogenizing process (106)