• 专利标题:   Preparing thermal conducting sheet useful in power lithium-ion battery pack for two-wheeled electric vehicle, comprises e.g. preparing graphene powder, carbon nanotube material, artificial graphite powder and binder material, adding solvent, coating prepared slurry on surface base material.
  • 专利号:   CN114388943-A
  • 发明人:   CHEN D, HAN S, HUANG C, LIU J
  • 专利权人:   CHAORONG NEW ENERGY TECHNOLOGY CO LTD
  • 国际专利分类:   F28F013/18, F28F003/00, H01M010/613, H01M010/615, H01M010/617, H01M010/653
  • 专利详细信息:   CN114388943-A 22 Apr 2022 H01M-010/653 202261 Chinese
  • 申请详细信息:   CN114388943-A CN11126840 20 Oct 2020
  • 优先权号:   CN11126840

▎ 摘  要

NOVELTY - Preparing thermal conducting sheet comprises (i) preparing graphene powder, carbon nanotube material, artificial graphite powder and binder material, adding solvent to prepare a slurry with a certain viscosity, where the mass fraction of the slurry is 0.5-5 wt.% graphene powder, 10-30 wt.% carbon nano-tube material, 1-10 wt.% artificial graphite powder, 1-15 wt.% adhesive material, 50-88 wt.% water or N-methyl-2-pyrrolidone, (ii) coating prepared slurry on at least one surface base material to form a composite material, and (iii) placing composite material in a high-temperature oven for drying to obtain thermal conductive sheet. USE - The method is useful for preparing thermal conducting sheet, which is useful in power lithium ion battery pack for two-wheeled electric vehicle, and energy storage device. ADVANTAGE - The sheet: has stable structure, fast radiating and long service life; can radiate heat generated by battery pack outwards through film; reduces temperature of pack; makes inner temperature more uniform; safety hidden trouble caused by thermal runaway; and exerts the best performance of battery pack. The method: uses solid heat conducting film technology. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a thermal conducting sheet.