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Defect-induced plating of lithium metal within porous graphene networks

Author

Listed:
  • Rahul Mukherjee

    (Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute)

  • Abhay V. Thomas

    (Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute)

  • Dibakar Datta

    (Mechanics of Solids and Structures, Brown University)

  • Eklavya Singh

    (Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute)

  • Junwen Li

    (Materials Science and Engineering, University of Pennsylvania)

  • Osman Eksik

    (Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute)

  • Vivek B. Shenoy

    (Materials Science and Engineering, University of Pennsylvania
    Mechanical Engineering and Applied Mechanics, University of Pennsylvania)

  • Nikhil Koratkar

    (Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute
    Materials Science and Engineering, Rensselaer Polytechnic Institute)

Abstract

Lithium metal is known to possess a very high theoretical capacity of 3,842 mAh g−1 in lithium batteries. However, the use of metallic lithium leads to extensive dendritic growth that poses serious safety hazards. Hence, lithium metal has long been replaced by layered lithium metal oxide and phospho-olivine cathodes that offer safer performance over extended cycling, although significantly compromising on the achievable capacities. Here we report the defect-induced plating of metallic lithium within the interior of a porous graphene network. The network acts as a caged entrapment for lithium metal that prevents dendritic growth, facilitating extended cycling of the electrode. The plating of lithium metal within the interior of the porous graphene structure results in very high specific capacities in excess of 850 mAh g−1. Extended testing for over 1,000 charge/discharge cycles indicates excellent reversibility and coulombic efficiencies above 99%.

Suggested Citation

  • Rahul Mukherjee & Abhay V. Thomas & Dibakar Datta & Eklavya Singh & Junwen Li & Osman Eksik & Vivek B. Shenoy & Nikhil Koratkar, 2014. "Defect-induced plating of lithium metal within porous graphene networks," Nature Communications, Nature, vol. 5(1), pages 1-10, September.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4710
    DOI: 10.1038/ncomms4710
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    Cited by:

    1. Hualiang Lv & Yuxing Yao & Shucong Li & Guanglei Wu & Biao Zhao & Xiaodi Zhou & Robert L. Dupont & Ufuoma I. Kara & Yimin Zhou & Shibo Xi & Bo Liu & Renchao Che & Jincang Zhang & Hongbin Xu & Solomon , 2023. "Staggered circular nanoporous graphene converts electromagnetic waves into electricity," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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