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

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 haza...

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Bibliographic Details
Published in:Sustainable energy & fuels 2023-05, Vol.7 (1), p.2357-2367
Main Authors: Wang, Xingjie, Liu, Shuai, Shi, Jing, Huang, Minghua, Shi, Zhicheng, Wang, Huanlei, Yan, Zhenhua
Format: Article
Language:English
Subjects:
Anodes
Batteries
Carbon
Cloth
Composite materials
Controllability
Cycles
Dendrites
Electrolytic cells
Energy storage
Lithium
Lithium batteries
Low temperature
Metal oxides
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Summary: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 LiFePO 4 (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. The carbon cloth modified with Co-Mo alloy oxide could enhance the performance of Li-metal battery anode. The Full cell coupled with LiFePO 4 cathode could deliver a reversible capacity of 139.36 mA h g −1 after 500 cycles.
ISSN:2398-4902
2398-4902
DOI:10.1039/d3se00254c