SCIENCE CHINA Materials, Volume 63 , Issue 9 : 1683-1692(2020) https://doi.org/10.1007/s40843-020-1327-8

Large-scale synthesis of lithium- and manganese-rich materials with uniform thin-film Al2O3 coating for stable cathode cycling

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  • ReceivedJan 2, 2020
  • AcceptedApr 2, 2020
  • PublishedJun 11, 2020


Funded by

the National Natural Science Foundation of China(U1564205)

the Project of Construction of Innovative Teams and Teacher Career Development for Universities and Colleges under Beijing Municipality(IDHT20180508)


This work was supported by the National Natural Science Foundation of China (U1564205), the Project of Construction of Innovative Teams and Teacher Career Development for Universities and Colleges under Beijing Municipality (IDHT20180508). Li T is thankful for the Northern Illinois University startup support.

Interest statement

The authors declare that they have no conflict of interest.

Contributions statement

Li J, Li T and Zhao Y conceived and developed the concept. Kang Y, Li J and Zhao Y prepared the materials. Kang Y, Zhao Y, Xu H and Qian K contributed to the experiments. Zhao Y, Kang Y and Li T analyzed the data and wrote the manuscript. Zhao Y, Li J, He X and Liang Z reviewed and edited the manuscript before submission. All authors contributed to the general discussion.

Author information

Jiangang Li received his BSc degree in chemistry from Shanxi University in 1987. He completed his PhD in the Department of Applied Chemistry at Tianjin University in 2001. Then he carried out his postdoctoral research with Prof. Chunrong Wan in the Institute of Nuclear and New Energy Technology at Tsinghua University in 2002–2004. He worked as a visiting scholar with Prof. Guozhong Cao at the University of Washington in 2009–2010. He is currently a professor in the School of Chemical Engineering at Beijing Institute of Petrochemical Technology. His current research interests focus on the advanced materials for energy conversion and storage such as batteries and supercapacitors.

Tao Li earned his BSc degree in polymer material science and engineering from the East China University of Science and Technology in 2003. He completed his PhD in the Department of Chemistry and Biochemistry at the University of South Carolina—Columbia in 2009. He is currently an assistant professor in the Department of Chemistry and Biochemistry at Northern Illinois University and holds a joint scientist position at the Advanced Photon Source at Argonne National Lab. His research interests focus on using advanced X-ray techniques to study the self-assembly of nanoparticles as well as energy materials including catalyst and battery.


Supplementary information

Supporting data are available in the online version of the paper.


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  • Figure 1

    Schematic diagrams of the entire coating process on the surface of LMR material and the function of this Al2O3 coating during charge-discharge cycles.

  • Figure 2

    (a) The aqueous droplet diameter distribution with different Al3+ concentrations in microemulsion; (b) XRD patterns of the pristine and Al2O3-coated LMR.

  • Figure 3

    (a) SEM images of the pristine LMR material; (b) SEM images of the Al2O3-1.0%; (c) EDS mapping of the O, Mn, Al and Ni elements of the Al2O3-1.0%; (d) HRTEM images of Al2O3-1.0%.

  • Figure 4

    (a) The first charge-discharge voltage curves at the current density of 0.05 C; (b) the cycling performances at the current density of 0.5 C;(c) the rate performances of the pristine LMR material and Al2O3-coated LMR; (d) cycling performances of the pristine material and Al2O3-1.0% LMR obtained at 1.0 C; the dQ/dV plots of (e) the pristine material and (f) Al2O3-1.0% LMR for the charge-discharge curves at different cycles.

  • Figure 5

    The voltage evolution of the (a) pristine material and (b) Al2O3-coated LMR during cycling; (c) the average voltages of the pristine material and Al2O3-coated LMR during cycling; (d) the DSC curves of the pristine material and Al2O3-1.0% LMR at charged state of 4.8 V; (e) the EIS of the pristine material and Al2O3-coated LMR at the 3rd cycle; (f) the EIS of the pristine material and Al2O3-1.0% LMR at the 3rd cycle and 200th cycle.