• 专利标题:   Lithium ion battery rare earth metal-tin disulfide/graphene cathode material production by dissolving tin tetrachloride pentahydrate, cerium nitrate hexahydrate, thioacetamide and cetyltrimethylammonium bromide in water and ethanol solution.
  • 专利号:   CN102931402-A
  • 发明人:   WANG Y, DING J, ZHAO Y, ZONG M, WANG Q, HUANG Y, WANG K
  • 专利权人:   UNIV NORTHWESTERN POLYTECHNICAL
  • 国际专利分类:   C01G019/00, H01M004/1397, H01M004/58, H01M004/62
  • 专利详细信息:   CN102931402-A 13 Feb 2013 H01M-004/58 201376 Pages: 7 Chinese
  • 申请详细信息:   CN102931402-A CN10437514 06 Nov 2012
  • 优先权号:   CN10437514

▎ 摘  要

NOVELTY - Production of lithium ion battery rare earth metal-tin disulfide/graphene cathode material comprises dissolving tin tetrachloride pentahydrate (SnCl4.5H2O), cerium nitrate hexahydrate (Ce(NO3)3.6H2O), thioacetamide (CH3CSNH2), and cetyltrimethylammonium bromide (CTAB) in water and ethanol mixed solution, adding oxidized graphene water solution, stirring until completely dissolved, transferring to hydrothermal reaction kettle with PTFE liner, reacting, centrifugally separating, washing, oven drying, and sintering in a tubular furnace under argon gas protection. USE - Production of lithium ion battery rare earth metal-tin disulfide/graphene cathode material (claimed). ADVANTAGE - The method has simple hydrothermal method and can relieve the charge and discharge problems caused by the change in volume to avoid excessive attenuation material electrode capacity. The cathode material has increased electrical conductivity and higher than the cycle performance capacity of pure-phase SnS2 and ensures charging and discharging process and convenient transmission. DETAILED DESCRIPTION - Production of lithium ion battery rare earth metal-tin disulfide/graphene cathode material comprises dissolving SnCl4.5H2O, Ce(NO3)3.6H2O, CH3CSNH2, and CTAB at 2:0.1:6:0.1 mol ratio in water and ethanol mixed solution, where the volume ratio of water and ethanol is 1:4, adding oxidized graphene water solution (0.0-0.60 g/100 g water), stirring until completely dissolved, transferring to hydrothermal reaction kettle with PTFE liner, reacting at 160-190 degrees C for 24-36 hours, centrifugally separating, washing, putting into a tank, oven drying at 45-60 degrees C to obtain a precursor, and sintering the precursor in a tubular furnace under argon gas protection at 400-500 degrees C for 1.5-2 hours to obtain cerium-tin disulfide (Ce-SnS2)/graphene.