Lithiophilic 3D Porous CuZn Current Collector for Stable Lithium Metal Batteries

Zhang, Duo; Dai, Alvin; Wu, Min; Shen, Kang; Xiao, Teng; Hou, Guangya; Lu, Jun; Tang, Yiping

doi:10.1021/acsenergylett.9b01987

Title: Lithiophilic 3D Porous CuZn Current Collector for Stable Lithium Metal Batteries

Abstract

Lithium (Li) dendrites formed from nonuniform Li deposition limit potential uses of Li metal as an anode material. Here, we report a lithiophilic 3D porous CuZn current collector that mitigates dendrite formation and realizes the high stability of Li anodes. As opposed to the common metal current collector of copper (Cu), calculations and in situ experiments demonstrate that copper zinc (CuZn) alloys found in commercially available brass are lithiophilic and promote uniform Li deposition. Facile dealloying methods are applied to provide sufficient Li deposition and volume expansion space in brass sheets. Residual CuZn alloys in the framework are found to induce uniform Li deposition and stabilize Li dendrite growth. The optimal current collector (2h-3D CuZn) runs smoothly over 220 cycles at 0.5 mA cm^–2 with improved Coulombic efficiencies at high current density. Lastly, this demonstrates an economic and facile CuZn preparation method that unlocks the full potential of Li anodes and provides new Li battery stabilization approaches.

Authors:

Zhang, Duo ^[1]; Dai, Alvin ^[2]; Wu, Min ^[1]; Shen, Kang ^[1]; Xiao, Teng ^[1]; Hou, Guangya ^[1];

^[2];

^[1]

Zhejiang Univ. of Technology, Hangzhou (China). College of Material Science and Engineering
Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division

Publication Date:: 2019-10-22

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

OSTI Identifier:: 1607369

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: ACS Energy Letters

Additional Journal Information:: Journal Volume: 5; Journal Issue: 1; Journal ID: ISSN 2380-8195

Publisher:: American Chemical Society (ACS)

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE; Metals; Layers; Deposition; Dendrons; Nucleation

Citation Formats


                    Zhang, Duo, Dai, Alvin, Wu, Min, Shen, Kang, Xiao, Teng, Hou, Guangya, Lu, Jun, and Tang, Yiping. Lithiophilic 3D Porous CuZn Current Collector for Stable Lithium Metal Batteries.  United States: N. p., 2019. 
Web.  doi:10.1021/acsenergylett.9b01987.

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                    Zhang, Duo, Dai, Alvin, Wu, Min, Shen, Kang, Xiao, Teng, Hou, Guangya, Lu, Jun, & Tang, Yiping. Lithiophilic 3D Porous CuZn Current Collector for Stable Lithium Metal Batteries.  United States.  https://doi.org/10.1021/acsenergylett.9b01987

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                    Zhang, Duo, Dai, Alvin, Wu, Min, Shen, Kang, Xiao, Teng, Hou, Guangya, Lu, Jun, and Tang, Yiping. Tue .  
"Lithiophilic 3D Porous CuZn Current Collector for Stable Lithium Metal Batteries".  United States.  https://doi.org/10.1021/acsenergylett.9b01987.  https://www.osti.gov/servlets/purl/1607369.

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@article{osti_1607369,

  title        = {Lithiophilic 3D Porous CuZn Current Collector for Stable Lithium Metal Batteries},

  author       = {Zhang, Duo and Dai, Alvin and Wu, Min and Shen, Kang and Xiao, Teng and Hou, Guangya and Lu, Jun and Tang, Yiping},

  abstractNote = {Lithium (Li) dendrites formed from nonuniform Li deposition limit potential uses of Li metal as an anode material. Here, we report a lithiophilic 3D porous CuZn current collector that mitigates dendrite formation and realizes the high stability of Li anodes. As opposed to the common metal current collector of copper (Cu), calculations and in situ experiments demonstrate that copper zinc (CuZn) alloys found in commercially available brass are lithiophilic and promote uniform Li deposition. Facile dealloying methods are applied to provide sufficient Li deposition and volume expansion space in brass sheets. Residual CuZn alloys in the framework are found to induce uniform Li deposition and stabilize Li dendrite growth. The optimal current collector (2h-3D CuZn) runs smoothly over 220 cycles at 0.5 mA cm–2 with improved Coulombic efficiencies at high current density. Lastly, this demonstrates an economic and facile CuZn preparation method that unlocks the full potential of Li anodes and provides new Li battery stabilization approaches.},

  doi          = {10.1021/acsenergylett.9b01987},

  journal      = {ACS Energy Letters},

  number       = 1,

  volume       = 5,

  place        = {United States},

  year         = {2019},

  month        = {10}

}

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https://doi.org/10.1021/acsenergylett.9b01987

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Cited by: 119 works

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Figures / Tables:

Figure 1: a) Adsorption energy of Li atom on Cu(111), Cu(200), CuZn(100) and CuZn(110) planes. (B represents top site bonds while H represents a hollow-top site.) b) Nucleation overpotential and corresponding error bars for different brass types. c) Digital photos of Li deposited on the surface of Cu and brassmore »

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