Journal article

Graphitic Carbon Nitride Induced Micro-Electric Field for Dendrite-Free Lithium Metal Anodes

Ziyang Lu, Qinghua Liang, Bo Wang, Ying Tao, Yufeng Zhao, Wei Lv, Donghai Liu, Chen Zhang, Zhe Weng, Jiachen Liang, Huan Li, Quan-Hong Yang

Advanced Energy Materials | Wiley - V C H Verlag GmbH & Co. KGaA | Published : 2019

Abstract

Uncontrolled dendrites resulting from nonuniform lithium (Li) nucleation/growth and Li volume expansion during charging cause serious safety problems for Li anode‐based batteries. Here the coating of nickel foam with graphitic carbon nitride (g‐C3N4) to have a 3D current collector (g‐C3N4@Ni foam) for dendrite‐free Li metal anodes is reported. The lithiophilic g‐C3N4 coupled with the 3D framework is demonstrated to be highly effective for promoting the uniform deposition of Li and suppressing the formation of dendrites. Both density functional theory calculations and experimental studies indicate the formation of a micro‐electric field resulting from the tri‐s‐triazine units of g‐C3N4, which..

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University of Melbourne Researchers

Grants

Awarded by National Science Fund for Distinguished Young Scholars, China


Awarded by National Natural Science Foundation of China


Awarded by Guangdong Natural Science Funds for Distinguished Young Scholars


Awarded by Guangdong Special Support Program


Awarded by Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program


Funding Acknowledgements

Z.L. and Q.L. contributed equally to this work. The authors appreciate support from the National Science Fund for Distinguished Young Scholars, China (No. 51525204), the National Natural Science Foundation of China (No. 51702229 and U1601206), Guangdong Natural Science Funds for Distinguished Young Scholars (2017B030306006), the Guangdong Special Support Program (2017TQ04C664), and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (2017BT01N111).