In-situ tailored 3D Li2O@Cu nanowires array enabling stable lithium metal anode with ultra-high coulombic efficiency

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成果类型：

期刊论文

作者：

Tan, Lei;Li, Xinhai;Cheng, Meng;Liu, Tiancheng;Wang, Zhixing;...

通讯作者：

Wang, Jiexi

作者机构：

[Liu, Tiancheng; Guo, Huajun; Wang, Zhixing; Yan, Guochun; Tan, Lei; Li, Xinhai; Liu, Yong; Cheng, Meng; Wang, Jiexi] Cent South Univ, Sch Met & Environm, State Key Lab Powder Met, Changsha 410083, Peoples R China.

[Guo, Huajun; Wang, Zhixing; Yan, Guochun; Li, Xinhai; Wang, Jiexi] Cent South Univ, Engn Res Ctr, Minist Educ Adv Battery Mat, Changsha 410083, Peoples R China.

[Li, Lingjun] Changsha Univ Sci & Technol, Sch Mat Sci & Engn, Changsha 410114, Peoples R China.

通讯机构：

[Wang, Jiexi] C

Cent South Univ, Sch Met & Environm, State Key Lab Powder Met, Changsha 410083, Peoples R China.

语种：

英文

关键词：

Anodes;Charge transfer;Charging (batteries);Copper;Copper oxides;Efficiency;Expansion;Foams;Musculoskeletal system;Nanowires;Secondary batteries;Composite nanowires;Coulombic efficiency;Electrochemical lithiation;Hierarchical structures;Lithium metal anode;Spontaneous reactions;Ultra-low-voltage;Volume expansion;Lithium

期刊：

Journal of Power Sources

ISSN：

0378-7753

年：

2020

卷：

463

页码：

228178

DOI：

10.1016/j.jpowsour.2020.228178

基金类别：

This work was financially supported by the National Natural Science Foundation of China ( 51804344 ), the Program of Huxiang Young Talents ( 2019RS2002 ), Innovation and Entrepreneurship Project of Hunan Province, China ( 2018GK5026 ), and the Hunan Province innovation for postgraduate ( CX2018B057 ).

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本校为其他机构

院系归属：

材料科学与工程学院

摘要：

Suffering from uncontrollable dendrite growth and volume expansion, Li metal batteries have the drawbacks of low coulombic efficiency and short cycle life, which severely limits its practical application. Herein, a multifunctional 3D skeleton of Li2O@Cu composite nanowires array on Cu foam (Li2O@CuNA/CF), in which the Li2O is homogenously distributed onto the Cu nanowires array through the in-situ spontaneous reaction between CuO nanowire and Li metal or electrochemical lithiation of CuO, is designed and serves as lithium storage host for Li me...

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In-situ tailored 3D Li2O@Cu nanowires array enabling stable lithium metal anode with ultra-high coulombic efficiency

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