Journal of Inorganic Materials ›› 2022, Vol. 37 ›› Issue (5): 481-492.DOI: 10.15541/jim20210502

Special Issue: 【虚拟专辑】锂金属电池,钠离子电池和水系电池(2020~2021)

• REVIEW • Previous Articles     Next Articles

Research Progress of LiTi2(PO4)3 Anode for Aqueous Lithium-ion Batteries

WANG Yutong1(), ZHANG Feifan1, XU Naicai2, WANG Chunxia1, CUI Lishan1, HUANG Guoyong1()   

  1. 1. State Key Laboratory of Heavy Oil, College of New Energy and Materials, China University of Petroleum-Beijing, Beijing 102249, China
    2. School of Chemistry and Chemical Engineering, Qinghai Normal University, Xining 810008, China
  • Received:2021-08-13 Revised:2021-10-22 Published:2022-05-20 Online:2021-11-01
  • Contact: HUANG Guoyong, professor. E-mail:huanggy@cup.edu.cn
  • About author:WANG Yutong (1992-), male, PhD candidate. E-mail: 1248736790@qq.com
  • Supported by:
    National Natural Science Foundation of China(52022109);National Natural Science Foundation of China(51834008);Beijing Municipal Natural Science Foundation(2202047);Science Foundation of China University of Petroleum, Beijing(2462018YJRC041);Science Foundation of China University of Petroleum, Beijing(2462020YXZZ016)

Abstract:

As green rechargeable batteries, lithium-ion batteries feature high energy and power density. However, commonly-used electrolytes, organic compounds, in commercially available lithium-ion batteries are flammable and toxic, which leaves them at the risk of combustion and explosion when being overcharged or short-circuited. In order to solve this problem, much attention has been paid to lithium-ion batteries with aqueous electrolytes, which take low-toxicity and high safety as the prominent advantages. The working voltage, 1.5-2.0 V, indicates their usage mainly in the field of energy storage. Considering the hydrogen and oxygen evolution, conventional anode materials used in commercially available lithium-ion batteries are inconformity for water-based lithium-ion batteries. Therefore, the key to the development of aqueous lithium-ion batteries lies in the selection of anodes. The anode material, LiTi2(PO4)3, has drawn the attention of researchers due to its advantages such as three-dimensional channel, and appropriate lithium-ion intercalation potential. The synthesis methods of LiTi2(PO4)3 mainly include high temperature solid-phase calcination, Sol-Gel methods and hydrothermal reaction, etc. To further improve the electrochemical performance of LiTi2(PO4)3, strategies can be used such as particle nanocrystallization, morphology control, element doping, and carbon-coating, etc. This review focuses on the synthesis and modification of LiTi2(PO4)3, as well as related research progress. At last, the future development of LiTi2(PO4)3 as anode material for lithium-ion battery is properly prospected.

Key words: aqueous lithium-ion battery, anode material, LiTi2(PO4)3, review

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