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Stable metal battery anodes enabled by polyethylenimine sponge hosts by way of electrokinetic effects

Author

Listed:
  • Guoxing Li

    (The Pennsylvania State University)

  • Zhe Liu

    (The Pennsylvania State University)

  • Qingquan Huang

    (The Pennsylvania State University)

  • Yue Gao

    (The Pennsylvania State University)

  • Michael Regula

    (The Pennsylvania State University)

  • Daiwei Wang

    (The Pennsylvania State University)

  • Long-Qing Chen

    (The Pennsylvania State University)

  • Donghai Wang

    (The Pennsylvania State University)

Abstract

The cycle life and energy density of rechargeable metal batteries are largely limited by the dendritic growth of their metal anodes (lithium, sodium or zinc). Here we develop a three-dimensional cross-linked polyethylenimine lithium-ion-affinity sponge as the lithium metal anode host to mitigate the problem. We show that electrokinetic surface conduction and electro-osmosis within the high-zeta-potential sponge change the concentration and current density profiles, which enables dendrite-free plating/stripping of lithium with a high Coulombic efficiency at high deposition capacities and current densities, even at low temperatures. The use of a lithium-hosting sponge leads to a significantly improved cycling stability of lithium metal batteries with a limited amount of lithium (for example, the areal lithium ratio of negative to positive electrodes is 0.6) at a commercial-level areal capacity. We also observed dendrite-free morphology in sodium and zinc anodes, which indicates a broader promise of this approach.

Suggested Citation

  • Guoxing Li & Zhe Liu & Qingquan Huang & Yue Gao & Michael Regula & Daiwei Wang & Long-Qing Chen & Donghai Wang, 2018. "Stable metal battery anodes enabled by polyethylenimine sponge hosts by way of electrokinetic effects," Nature Energy, Nature, vol. 3(12), pages 1076-1083, December.
    • Handle: RePEc:nat:natene:v:3:y:2018:i:12:d:10.1038_s41560-018-0276-z
    DOI: 10.1038/s41560-018-0276-z
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    Cited by:

    1. Jyotshna Pokharel & Arthur Cresce & Bharat Pant & Moon Young Yang & Ashim Gurung & Wei He & Abiral Baniya & Buddhi Sagar Lamsal & Zhongjiu Yang & Stephen Gent & Xiaojun Xian & Ye Cao & William A. Godd, 2024. "Manipulating the diffusion energy barrier at the lithium metal electrolyte interface for dendrite-free long-life batteries," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Qing Zhao & Yue Deng & Nyalaliska W. Utomo & Jingxu Zheng & Prayag Biswal & Jiefu Yin & Lynden A. Archer, 2021. "On the crystallography and reversibility of lithium electrodeposits at ultrahigh capacity," Nature Communications, Nature, vol. 12(1), pages 1-10, December.

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