Issue 21, 2023

Enhancing the cycle-life of initial-anode-free lithium-metal batteries by pre-lithiation in Mn-based Li-rich spinel cathodes

Abstract

Anode-free lithium metal batteries (AF-LMBs) are attracting growing attention due to the burgeoning pursuit of high energy density. However, the poor reversibility of lithium-ion plating/stripping on the Cu anode triggers multiple issues, including rapid capacity loss, active lithium loss, and short lifetime. Herein, a cathode pre-lithiation strategy combined with a fluorine-containing electrolyte is introduced to achieve long-lifetime AF-LMBs. Furthermore, contact pre-lithiation, a more advanced and convenient strategy, has been introduced to precisely control the lithiation degree by adjusting the contact time. It has been demonstrated that over-lithiated Li1.3Mn2O4 can deliver additional lithium ions during the charging process, thus exhibiting 94.4% capacity retention after 40 cycles.

Graphical abstract: Enhancing the cycle-life of initial-anode-free lithium-metal batteries by pre-lithiation in Mn-based Li-rich spinel cathodes

Supplementary files

Article information

Article type
Communication
Submitted
27 mar 2023
Accepted
03 may 2023
First published
03 may 2023

J. Mater. Chem. A, 2023,11, 11119-11125

Enhancing the cycle-life of initial-anode-free lithium-metal batteries by pre-lithiation in Mn-based Li-rich spinel cathodes

L. Chen, C. Chiang, G. Zeng, Y. Tang, X. Wu, S. Zhou, B. Zhang, H. Zhang, Y. Yan, T. Liu, H. Liao, C. Wang, X. Kuai, Y. Lin, Y. Qiao and S. Sun, J. Mater. Chem. A, 2023, 11, 11119 DOI: 10.1039/D3TA01823G

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