J. Mater. Sci. Technol. ›› 2018, Vol. 34 ›› Issue (6): 983-989.DOI: rg/10.1016/j.jmst.2017.06.012

• Orginal Article • Previous Articles     Next Articles

An amorphous carbon-graphite composite cathode for long cycle life rechargeable aluminum ion batteries

Jiang Weiab, Wei Chenb, Demin Chenb*(), Ke Yangb   

  1. aUniversity of Chinese Academy of Sciences, Beijing 100049, China
    bInstitute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2017-03-12 Revised:2017-04-18 Accepted:2017-06-09 Online:2018-06-10 Published:2018-06-05
  • Contact: Chen Demin

Abstract:

Natural graphite is investigated as the cathode for aluminum ion batteries in recent years. However, some drawbacks of the natural graphite such as severe volume swelling shorten its lifetime. In this work, we prepared a composite material by depositing an amorphous carbon on the graphite paper. The composite was used as a cathode to study the electrochemical performance in aluminum ion batteries. The charge/discharge results showed that the composite could exhibit a longer cycle life than the graphite paper. Electrochemical analyses demonstrated that the interface between the amorphous carbon and the graphite paper made a major contribution to the improvement of the cycling stability.

Key words: Amorphous carbon, Graphite paper, Aluminum ion batteries, Cathode, Ionic liquid, Interface, Phase equilibrium