Diatomite derived hierarchical hybrid anode for high performance all-solid-state lithium metal batteries

Fei Zhou, Zheng Li, Yu-Yang Lu, Bao Shen, Yong Guan, Xiu-Xia Wang, Yi-Chen Yin, Bai-Sheng Zhu, Lei-Lei Lu, Yong Ni, Yi Cui, Hong-Bin Yao () and Shu-Hong Yu ()
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Fei Zhou: University of Science and Technology of China
Zheng Li: University of Science and Technology of China
Yu-Yang Lu: University of Science and Technology of China
Bao Shen: University of Science and Technology of China
Yong Guan: University of Science and Technology of China
Xiu-Xia Wang: University of Science and Technology of China
Yi-Chen Yin: University of Science and Technology of China
Bai-Sheng Zhu: University of Science and Technology of China
Lei-Lei Lu: University of Science and Technology of China
Yong Ni: University of Science and Technology of China
Yi Cui: Stanford University
Hong-Bin Yao: University of Science and Technology of China
Shu-Hong Yu: University of Science and Technology of China

Nature Communications, 2019, vol. 10, issue 1, 1-11

Abstract: Abstract Lithium metal based anode with hierarchical structure to enable high rate capability, volume change accommodation, and dendritic suppression is highly desirable for all-solid-state lithium metal battery. However, the fabrication of hierarchical lithium metal based anode is challenging due to the volatility of lithium. Here, we report that natural diatomite can act as an excellent template for constructing hierarchical silicon-lithium based hybrid anode for high performance all-solid-state lithium metal battery. This hybrid anode exhibits stable lithium stripping/plating performance over 1000 h with average overpotential lower than 100 mV without any short circuit. Moreover, all-solid-state full cell using this lithium metal composite anode to couple with lithium iron phosphate cathode shows excellent cycling stability (0.04% capacity decay rate for 500 cycles at 0.5C) and high rate capability (65 mAh g−1 at 5C). The present natural diatomite derived hybrid anode could further promote the fabrication of high performance all-solid-state lithium batteries from sustainable natural resources.

Date: 2019
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DOI: 10.1038/s41467-019-10473-w

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