• 专利标题:   Material used in composition for forming layer of anode used for all-solid secondary batteries, comprises metal-carbon composite containing carbon material and metal particles which are uniformly dispersed in carbon material.
  • 专利号:   EP4016668-A1, JP2022098487-A, US2022199995-A1, KR2022089625-A, CN114649515-A
  • 发明人:   KIM J, YANG J, CHO B, JUNG Y, KIM Y, HAN S, KIM J K, YANG J H, JUNG Y C, KIM Y C, HAN S I, HOON Y, CHO B K, CHAE C, HAN X, JIN R, ZHENG Y, ZHAO B, KIM Q
  • 专利权人:   SAMSUNG SDI CO LTD, SAMSUNG SDI CO LTD, SAMSUNG SDI CO LTD
  • 国际专利分类:   H01M010/052, H01M010/0562, H01M004/02, H01M004/04, H01M004/133, H01M004/134, H01M004/1393, H01M004/36, H01M004/54, H01M004/583, H01M004/1395, H01M004/38, H01M004/40, H01M004/587, H01M004/66, H01M010/0525, H01M010/42, H01M004/62, H01M010/05
  • 专利详细信息:   EP4016668-A1 22 Jun 2022 H01M-004/04 202255 Pages: 47 English
  • 申请详细信息:   EP4016668-A1 EP215890 20 Dec 2021
  • 优先权号:   KR179921, KR158712

▎ 摘  要

NOVELTY - An anode material comprises a metal-carbon composite (100) containing a carbon material (110) and metal particles (120). The metal particles are uniformly dispersed in the carbon material. USE - Material used in composition for forming layer of anode used for all-solid secondary batteries (all claimed) e.g. lithium-ion batteries used for information-related appliances, communication appliances and automobiles applications. ADVANTAGE - The anode material provides all-solid secondary battery having excellent high-rate characteristics and lifetime characteristics. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) manufacture of the anode material, which involves providing a solution of polyvinylpyrrolidone in glycerol, adding a carbon material and subsequently a metal salt to the solution to obtain a reaction mixture, heating the reaction mixture at 80-120 degrees C for 8-16 hours to obtain metal particles uniformly dispersed in the carbon material, cooling the reaction mixture to room temperature, adding deionized water, separating and washing a filtrate with deionized water, and drying the filtrate in a vacuum oven at 80-100 degrees C for 4-12 hours to obtain the metal-carbon composite; (2) anode composition, which comprises the anode material and an aqueous binder; and (3) anode layer, which comprises an anode current collector, anode active material layer (A) on the anode current collector. The anode active material layer contains the anode material. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the anode material. Metal-carbon composite (100) Carbon material (110) Metal particles (120)