Acta Chimica Sinica ›› 2013, Vol. 71 ›› Issue (10): 1354-1364.DOI: 10.6023/A13040389 Previous Articles     Next Articles



顾大明a, 王余a, 顾硕b, 张传明a, 杨丹丹a   

  1. a 哈尔滨工业大学化学系 哈尔滨 150001;
    b 乔治华盛顿大学电子与计算机工程系 华盛顿 美国 20052
  • 投稿日期:2013-04-10 发布日期:2013-06-27
  • 通讯作者: 顾大明,
  • 基金资助:

    项目受哈尔滨市优秀学科带头人专项资金(No. 2012RFXXG99)资助.

Research Progress and Optimization of Non-aqueous Electrolyte for Lithium Air Batteries

Gu Daminga, Wang Yua, Gu Shuob, Zhang Chuanminga, Yang Dandan a   

  1. a Department of Chemistry, Harbin Institute of Technology, Harbin 150001;
    b Department of Electrical and Computer Engineering, The George Washington University, Washington, DC, 20052, USA
  • Received:2013-04-10 Published:2013-06-27
  • Supported by:

    Project supported by the Outstanding Subject Leaders Special Foundation of Harbin, China (No. 2012RFXXG99).

Lithium air battery is an advanced electrochemical power source that lies between fuel cell and lithium battery, and it is considered to be one of the most promising next generation batteries due to the fact that it may provide extremely high theoretical energy, i.e. 11140 Wh/kg (Li), which is estimated to be 6~9 times higher than that of the lithium ion batteries. The reason for such high theoretical energy is the use of Li sheet (with extremely high energy density) as anode electrode and O2 as cathodic reactant from the air. Other advantages of the battery include stable output voltage, cost effectiveness, and pollution free, and have broad application prospects. If it is successfully developed, the battery could be an excellent energy storage device for renewable energy sources such as wind, solar, and tidal energy, which brings a prospect for human to solve the problem of environment pollution and energy crisis. Electrolyte is a crucial component of lithium air battery and the electrochemical performance of the battery is determined by electrolyte to a great extent. Due to the react violently between lithium and water, it is not practical for lithium air battery to use directly an aqueous electrolyte unless the anode can be protected from degradation. In this paper, the authors presented the latest research progress on three kind of non-aqueous electrolyte, i.e. organic electrolyte, ionic liquid and solid electrolyte. We elaborated the influence of various chemical properties (electrochemical stability, conductivity, polarity), physical properties (dielectric constant, viscosity, oxygen solubility, hygroscopicity and electrolyte filling) and physicochemical properties (infiltration ability to cathode materials) on lithium air battery's performance, i.e. specific capacity, rate capacity and cycling efficiency. In addition, we also provided insights into the prospect of non-aqueous electrolyte for lithium air battery.

Key words: lithium air battery, organic electrolyte, ionic liquid, solid electrolyte, research progress