Search

Article

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Effects of preparation temperature of graphite oxide on the structure of graphite and electrochemical properties of graphene-based lithium-ion batteries

Huang Le-Xu Chen Yuan-Fu Li Ping-Jian Huan Ran He Jia-Rui Wang Ze-Gao Hao Xin Liu Jing-Bo Zhang Wan-Li Li Yan-Rong

Effects of preparation temperature of graphite oxide on the structure of graphite and electrochemical properties of graphene-based lithium-ion batteries

Huang Le-Xu, Chen Yuan-Fu, Li Ping-Jian, Huan Ran, He Jia-Rui, Wang Ze-Gao, Hao Xin, Liu Jing-Bo, Zhang Wan-Li, Li Yan-Rong
PDF
Get Citation
Metrics
  • Abstract views:  2050
  • PDF Downloads:  807
  • Cited By: 0
Publishing process
  • Received Date:  30 November 2011
  • Accepted Date:  07 January 2012
  • Published Online:  05 August 2012

Effects of preparation temperature of graphite oxide on the structure of graphite and electrochemical properties of graphene-based lithium-ion batteries

  • 1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
Fund Project:  Project supported by the Program for New Century Excellent Talents in University (Grant No. NCET-10-0291), the Fundamental Research Funds for the Central Universities (Grant Nos. ZYGX2009X005, ZYGX2010J031), and the Startup Research Project of University of Electronic Science and Technology of China (Grant No. Y02002010301041).

Abstract: Graphite oxide is synthesized from graphite powder by a modified Hummers method, and the oxidation temperature is controlled in high-temperature oxidation process. By treating graphite oxide powders in a commercial microwave oven, graphene materials can be readily obtained. The morphologies, microstructures, specific surface areas and other features of the graphene and graphite oxide are characterized by FESEM, XPS, XRD and BET. Electrochemical performances of the lithium-ion batteries based on graphene anodes are investigated. The results show that graphene obtained at the oxidation temperature of 90℃ in high-temperature oxidation process actually displays the most remarkable electrochemical performances, that is, the first discharge specific volume and charge capacity of graphene are as high as 1555.5 mAh/g and 1024.6 mAh/g, and after 30 cycles graphene still possess as high as a discharge capacity of 600 mAh/g.

Reference (18)

Catalog

    /

    返回文章
    返回