能源化学(英文版) ›› 2020, Vol. 44 ›› Issue (5): 13-18.DOI: 10.1016/j.jechem.2019.09.015

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Unlock the potential of Li4Ti5O12 for high-voltage/long-cycling-life and high-safety batteries: Dual-ion architecture superior to lithium-ion storage

Xiaoyuan Shia,b, Shansheng Yua, Ting Denga, Wei Zhanga,c,d, Weitao Zhenga   

  1. a State Key Laboratory of Automotive Simulation and Control, and School of Materials Science & Engineering, Electron Microscopy Center, and International Center of Future Science, Jilin University, Changchun 130012, Jilin, China;
    b Key Laboratory of Polyoxometalate Science of Ministry of Education, Northeast Normal University, Changchun 130024, Jilin, China;
    c Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China;
    d IKERBASQUE, Basque Foundation for Science, Bilbao 48013, Spain
  • 收稿日期:2019-09-09 修回日期:2019-09-10 出版日期:2020-05-15 发布日期:2020-12-18
  • 基金资助:
    The authors are grateful for the financial supports from the National Natural Science Foundation of China (51932003, 51902050, 51872115 & 51802110), Program for the Development of Science and Technology of Jilin Province (20190201309JC), the Open Project Program of Wuhan National Laboratory for Optoelectronics (2018WNLOKF022), the Jilin Province/Jilin University co-Construction Project-Funds for New Materials (SXGJSF2017-3, Branch-2/440050316A36), Program for JLU Science and Technology Innovative Research Team (JLUSTIRT, 2017TD-09), the Fundamental Research Funds for the Central Universities JLU, and “Double-First Class” Discipline for Materials Science & Engineering.

Unlock the potential of Li4Ti5O12 for high-voltage/long-cycling-life and high-safety batteries: Dual-ion architecture superior to lithium-ion storage

Xiaoyuan Shia,b, Shansheng Yua, Ting Denga, Wei Zhanga,c,d, Weitao Zhenga   

  1. a State Key Laboratory of Automotive Simulation and Control, and School of Materials Science & Engineering, Electron Microscopy Center, and International Center of Future Science, Jilin University, Changchun 130012, Jilin, China;
    b Key Laboratory of Polyoxometalate Science of Ministry of Education, Northeast Normal University, Changchun 130024, Jilin, China;
    c Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China;
    d IKERBASQUE, Basque Foundation for Science, Bilbao 48013, Spain
  • Received:2019-09-09 Revised:2019-09-10 Online:2020-05-15 Published:2020-12-18
  • Contact: Wei Zhang, Weitao Zheng
  • Supported by:
    The authors are grateful for the financial supports from the National Natural Science Foundation of China (51932003, 51902050, 51872115 & 51802110), Program for the Development of Science and Technology of Jilin Province (20190201309JC), the Open Project Program of Wuhan National Laboratory for Optoelectronics (2018WNLOKF022), the Jilin Province/Jilin University co-Construction Project-Funds for New Materials (SXGJSF2017-3, Branch-2/440050316A36), Program for JLU Science and Technology Innovative Research Team (JLUSTIRT, 2017TD-09), the Fundamental Research Funds for the Central Universities JLU, and “Double-First Class” Discipline for Materials Science & Engineering.

摘要: Li4Ti5O12 (LTO) has drawn great attention due to its safety and stability in lithium-ion batteries (LIBs). However, high potential plateau at 1.5 V vs. Li reduces the cell voltage, leading to a limited use of LTO. Dual-ion batteries (DIBs) can achieve high working voltage due to high intercalation potential of cathode. Herein, we propose a DIB configuration in which LTO is used as anode and the working voltage was 3.5 V. This DIB achieves a maximum specific energy of 140 Wh/kg at a specific power of 35 W/kg, and the specific power of 2933 W/kg can be obtained with a remaining specific energy of 11 Wh/kg. Traditional LIB material shows greatly improved properties in the DIB configuration. Thus, reversing its disadvantage leads to upgraded performance of batteries. Our configuration has also widened the horizon of materials for DIBs.

关键词: Li4Ti5O12, Specific energy, Specific power, Dual-ion batteries, Lithium-ion batteries

Abstract: Li4Ti5O12 (LTO) has drawn great attention due to its safety and stability in lithium-ion batteries (LIBs). However, high potential plateau at 1.5 V vs. Li reduces the cell voltage, leading to a limited use of LTO. Dual-ion batteries (DIBs) can achieve high working voltage due to high intercalation potential of cathode. Herein, we propose a DIB configuration in which LTO is used as anode and the working voltage was 3.5 V. This DIB achieves a maximum specific energy of 140 Wh/kg at a specific power of 35 W/kg, and the specific power of 2933 W/kg can be obtained with a remaining specific energy of 11 Wh/kg. Traditional LIB material shows greatly improved properties in the DIB configuration. Thus, reversing its disadvantage leads to upgraded performance of batteries. Our configuration has also widened the horizon of materials for DIBs.

Key words: Li4Ti5O12, Specific energy, Specific power, Dual-ion batteries, Lithium-ion batteries