• 专利标题:   Method for preparing high silicon zeolite-graphene composite cathode material for use in lithium ion battery, involves preparing high silica zeolite, dissolving high silica zeolite in water, followed by calcining and cooling dried product.
  • 专利号:   CN104934578-A, CN104934578-B
  • 发明人:   CUI Y, LI Z, ZHANG X, ZHENG X, WU J, QU D, CHOU L
  • 专利权人:   DONGGUAN MAIKE SCI TECHNOLOGY CO LTD, MCNAIR NEW POWER CO LTD, HARBIN INST TECHNOLOGY SHENZHEN GRADUATE, DONGGUAN MCNAIR TECHNOLOGY CO LTD, HARBIN INST TECHNOLOGY SHENZHEN GRADUATE, DONGGUAN MCNAIR NEW ENERGY CO LTD
  • 国际专利分类:   H01M010/0525, H01M004/36
  • 专利详细信息:   CN104934578-A 23 Sep 2015 H01M-004/36 201602 Pages: 15 Chinese
  • 申请详细信息:   CN104934578-A CN10261781 21 May 2015
  • 优先权号:   CN10261781

▎ 摘  要

NOVELTY - A high silicon zeolite-graphene composite cathode material preparing method involves preparing high silica zeolite. The high silica zeolite is dissolved in deionized water, allowed for ultrasonic dispersion to obtain solution B1, subjected to take graphene, allowed for ultrasonic dispersion in deionized water to obtain a solution B2. The solution B1 and solution B2 is mixed and allowed for ultrasonic dispersion to obtain solution B3. The solution B3 is allowed for freeze-drying to give a dried product. The dried product is calcined in a reducing gas and cooled to obtain the finished product. USE - Method for preparing high silicon zeolite-graphene composite cathode material for use in lithium ion battery (claimed). ADVANTAGE - The method enables preparing cathode material in simple, eco-friendly and cost effective manner. DETAILED DESCRIPTION - A high silicon zeolite-graphene composite cathode material preparing method involves preparing high silica zeolite by adding deionized water in tetrapropylammonium hydroxide, stirring uniformly, adding silicic acid, stirring for 12-24 hours to obtain solution A1. The solution A1 is transferred Teflon (RTM:PTFE) lined cups, allowed for crystallization to obtain solution A2. The solution A2 is centrifuged, washed and dried to obtain high silica zeolite. The high silica zeolite is dissolved in 20-50 ml deionized water, allowed for ultrasonic dispersion to obtain solution B1, subjected to take 0.05-0.25 g graphene, allowed for ultrasonic dispersion in 100-500 ml deionized water to obtain a solution B2. The solution B1 and solution B2 is mixed and allowed for ultrasonic dispersion to obtain solution B3. The solution B3 is allowed for freeze-drying to give a dried product. The dried product is calcined in a reducing gas and cooled to obtain the finished product. An INDEPENDENT CLAIM is also included for a lithium ion battery.