, Volume 25, Issue 9, pp 4067–4074 | Cite as

A stable protective layer toward high-performance lithium metal battery

  • Hairui Kang
  • Bo WangEmail author
  • Rensheng Song
  • Fei Wang
  • Hao Luo
  • Tingting Ruan
  • Dianlong WangEmail author
Original Paper


Metal lithium anodes are quite promising for next-generation batteries due to their high energy density and low voltage, which has attracted numerous attention of the researchers. However, the main challenge for lithium anodes still lies on their serious dendrite problems, leading to the poor cycling stabilities. Here, we introduced poly(vinylidene-co-hexafluoropropylene) (PVDF-HFP) composite film combined with nano alumina (nano-Al2O3), lithium fluoride (LiF) and lithiumbis(trifluoromethanesulphonyl)imide (LiTFSI), as a stable protective layer (SPL), to coat on the surface of cooper current collector, which was beneficial to improve the cycling stabilities of the fabricated lithium–copper (Li–Cu) half-cell. The copper foil electrode modified with the protective layer exhibited a much enhanced cycling performance compared with the one without modification, which did not show obvious capacity decay after 250 cycles at the current density of 0.5 mA/cm2 for 2 h. From SEM and XPS characterizations, it had to be found that the preset protective composite layer kept a stable structure during the charge and discharge process, which guaranteed the achieved stable cycling performance. In addition, a full battery system based on modified copper foil anode and LiFePO4 cathode also constructed and presented a good cycling performance.

Graphic abstract

A stable protective layer was coated on the surface of cooper collector, which inhibited Li dendrites and promoted the performance of lithium metal battery.


Lithium anode Protective layer Cycling performance Cooper foil Batteries 


Funding information

This work was supported by the National Natural Science Foundation of China (Grant No. 51874110 and 51604089), the China Postdoctoral Science Foundation (Grant No. 2016M601431 and 2018T110308), and the Heilongjiang Province Postdoctoral Science Foundation (Grant No. LBH-Z16056 and LBH-TZ1707).

Supplementary material

11581_2019_2993_MOESM1_ESM.doc (884 kb)
ESM 1 (DOC 884 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and StorageSchool of Chemistry and Chemical Engineering, Harbin Institute of TechnologyHarbinChina

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