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Preparation of Nano-Al coated with the Conductive Ti3O5 shell and its Electrochemical Performance as Anode Materials of Dual-ion Batteries
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1.College of Materials Science and Engineering, Sichuan University;2.Bazhong Yike Carbon Co,Ltd,Bazhong,Sichuan

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Sichuan Science and Technology Program (2019YFG0072)

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    Abstract:

    Aluminum is considered as one of the most promising anode materials for the next generation batteries, in this paper, we used conductive Ti3O5 shell coating nano-Al powder to prepare the core-shell structure material of Al@Ti3O5, and used it as an anode, accompanied by of MCMB as the cathode, to assemble the Al@Ti3O5-MCMB Dual-ion battery (DIB). The discharge platform of the Al@Ti3O5-MCMB DIB is up to 4.5V, and the discharge capacity can reach 130.6mAhg-1, specific energy density 278.8Whkg-1 at a current rate of 0.5C (the current rate is based on the theoretical specific capacity of graphite and 1C corresponding to 372 mAhg-1). The Al@Ti3O5-MCMB DIB shows excellent cyclic stability, and the capacity remains at around 110mAhg-1 in the process of circulating 1000 times under the current rate of 5C, with a capacity retention rate of 92.9% after circulation.

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[Tan Jing, Mao Jian, Zhang Zhengquan. Preparation of Nano-Al coated with the Conductive Ti3O5 shell and its Electrochemical Performance as Anode Materials of Dual-ion Batteries[J]. Rare Metal Materials and Engineering,2020,49(6):1834~1839.]
DOI:10.12442/j. issn.1002-185X.20190264

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History
  • Received:March 28,2019
  • Revised:May 31,2019
  • Adopted:June 03,2019
  • Online: July 09,2020
  • Published: