Issue 10, 2023

Co–Mo alloy oxide decorated carbon cloth as lithium host for dendrite-free lithium metal anode

Abstract

Lithium metal batteries are a promising energy storage solution for next-generation high-efficiency and high-energy-density batteries due to their ultrahigh theoretical capacity (3860 mA h g−1) and low anode potential (−3.04 V vs. the standard hydrogen electrode). Unfortunately, severe safety hazards have been caused by Li dendrite growth during long-term cycling. Here, we have designed a controllable and electrolyte-wetted composite anode via molten Li infusion into Co–Mo alloy oxide layer (CMO)-coated commercial carbon cloth (CC). Benefiting from the superior lithiophilicity of Co–Mo alloy oxides, the composite anode allows the fast infusion of molten Li at a low temperature of 250 °C. Symmetrical cells assembled with composite anodes afford stable cycling for 2500 h at 1 mA cm−2 with 1 mA h cm−2. Full cells coupled with an LiFePO4 (LFP) cathode delivered a reversible capacity of 139.36 mA h g−1 after 500 cycles. In this work, we present a systematic study of the effect of the Co–Mo alloy oxide layer on carbon cloth on battery performance. Moreover, we not only prepared a dendrite-free lithium metal composite anode, but also provided a new strategy for the controllable modification of an alloy oxide layer on a current collector.

Graphical abstract: Co–Mo alloy oxide decorated carbon cloth as lithium host for dendrite-free lithium metal anode

Supplementary files

Article information

Article type
Paper
Submitted
27 Febr. 2023
Accepted
19 Apr. 2023
First published
20 Apr. 2023

Sustainable Energy Fuels, 2023,7, 2357-2367

Co–Mo alloy oxide decorated carbon cloth as lithium host for dendrite-free lithium metal anode

X. Wang, S. Liu, J. Shi, M. Huang, Z. Shi, H. Wang and Z. Yan, Sustainable Energy Fuels, 2023, 7, 2357 DOI: 10.1039/D3SE00254C

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