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  • 专利标题:   Preparation of silicon-carbon composite material used as anode material in battery cell, involves mixing silicon particles, carbon compound, and dispersant, thermally processing mixture, and heat-treating thermally processed intermediate product preset temperature.
  • 专利号:   WO2021245166-A1, DE102020003354-A1, AU2021285118-A1, KR2023019456-A, CA3181047-A1, BR112022024741-A2, CN115803909-A, EP4162549-A1
  • 发明人:   GENTISCHER H, BIRO D, HABERZETTL P, DREWS M, HORZEL J, DOLD L, HARBOR J P, DRUCE M, HOSEL J
  • 专利权人:   FRAUNHOFER GES FOERDERUNG ANGEWANDTEN EV, FRAUNHOFERGES FOERDERUNG ANGEWANDTEN, FRAUNHOFER GES FOERDERUNG ANGEWANDTEN EV, FRAUNHOFER APPL RES PROMOTION ASSOC, FRAUNHOFER GES FOERDERUNG ANGEWANDTEN EV
  • 国际专利分类:   H01M004/38, H01M004/04, H01M004/134, H01M004/1395, H01M004/36, H01M004/62, H01M010/0525, H01M004/02, C04B035/65, C01B032/05, C01B032/198, C01B033/02
  • 专利详细信息:   WO2021245166-A1 09 Dec 2021 202201 Pages: 73 German
  • 申请详细信息:   WO2021245166-A1 WOEP064851 02 Jun 2021
  • 优先权号:   DE10003354, CA3181047, BR11024741, KR745987, CN80046972

▎ 摘　　要

NOVELTY - Production of a silicon-carbon composite material involves mixing silicon particles and at least one carbon compound, and dispersant, and thermal processing the mixture by heat-treating the mixture at a temperature which corresponds to at least the conversion temperature of the carbon compound, preferably 120-700 degrees C, more preferably 120-350 degrees C to obtain a thermally processed intermediate, and heat-treating the thermally processed intermediate product at 750 degrees C. USE - Preparation of silicon-carbon composite material used as anode material in battery cell (all claimed) e.g. lithium-ion secondary battery. ADVANTAGE - The method enables preparation of silicon-carbon composite material, and provides battery with excellent durability, and charge/discharge characteristics. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the silicon-carbon composite material.