• 专利标题:   One-dimensional core-shell structural material for lithium-ion battery, is micro-nano structured graphene modified by tin-carbon/titanium dioxide-boron one-dimensional core-shell structural material.
  • 专利号:   CN102332573-A, CN102332573-B
  • 发明人:   GUO T, LI S, LI F, XU S, ZHANG Y, YANG Z
  • 专利权人:   UNIV FUZHOU
  • 国际专利分类:   B82Y030/00, B82Y040/00, H01M004/485
  • 专利详细信息:   CN102332573-A 25 Jan 2012 H01M-004/485 201224 Pages: 10 Chinese
  • 申请详细信息:   CN102332573-A CN10172936 24 Jun 2011
  • 优先权号:   CN10172936

▎ 摘  要

NOVELTY - An one-dimensional core-shell structural material has a micro-nano structured graphene modified by tin-carbon/titanium dioxide-boron one-dimensional core shell structural material. The structural material has a support (1), a connecting layer (2), a charge-discharge structure layer (3) and a protective layer (4) which is made of nanowires structure. USE - One-dimensional core-shell structural material is used for lithium-ion battery. ADVANTAGE - The lithium-ion battery containing the one-dimensional core-shell structural material has high electrochemical characteristics and charging and discharging characteristics, and low non-reversible capacity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for one-dimensional core-shell structural material, which involves carrying out ball milling of graphite, centrifugal separation and vacuum-filtering process to obtain highly dispersed micro-nano structured graphene, preparing hydrogen trititanate nanowires or nanotube, dispersing the obtained micro-nano structured graphene and prepared hydrogen trititanate nanowires or nanotube in glucose solution, coating on the support and connecting layer, dispersing the obtained single-layer core-shell structural material, potassium stannate and micro-nano structured graphene in glucose solution, coating on the charge-discharge structure layer, dispersing the obtained double-layer core shell structural material and micro-nano structured graphene in glucose solution, coating on the protective layer to obtain third-layer core-shell structural material, placing the obtained third-layer core-shell structural material into a quartz tube furnace and heating at 500-700 degrees C for 2-3 hours under hydrogen-argon mixed gas atmosphere. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of one-dimensional core-shell structural material. Support (1) Connecting layer (2) Charge-discharge structure layer (3) Protective layer (4)