TY - JOUR
T1 - Fluorinated hybrid solid-electrolyte-interphase for dendrite-free lithium deposition
AU - Pathak, Rajesh
AU - Chen, Ke
AU - Gurung, Ashim
AU - Reza, Khan Mamun
AU - Bahrami, Behzad
AU - Pokharel, Jyotshna
AU - Baniya, Abiral
AU - He, Wei
AU - Wu, Fan
AU - Zhou, Yue
AU - Xu, Kang
AU - Qiao, Qiquan (Quinn)
N1 - Funding Information:
This work has been supported by NSF MRI (1428992), NASA EPSCoR (NNX15AM83A), SDBoR Competitive Grant Program, SDBoR R&D Program, and EDA University Center Program (ED18DEN3030025).
Publisher Copyright:
© 2020, This is a U.S Government work and not under copyright protection in the U.S; foreign copyright protection may apply.
PY - 2020/12/1
Y1 - 2020/12/1
N2 - Lithium metal anodes have attracted extensive attention owing to their high theoretical specific capacity. However, the notorious reactivity of lithium prevents their practical applications, as evidenced by the undesired lithium dendrite growth and unstable solid electrolyte interphase formation. Here, we develop a facile, cost-effective and one-step approach to create an artificial lithium metal/electrolyte interphase by treating the lithium anode with a tin-containing electrolyte. As a result, an artificial solid electrolyte interphase composed of lithium fluoride, tin, and the tin-lithium alloy is formed, which not only ensures fast lithium-ion diffusion and suppresses lithium dendrite growth but also brings a synergistic effect of storing lithium via a reversible tin-lithium alloy formation and enabling lithium plating underneath it. With such an artificial solid electrolyte interphase, lithium symmetrical cells show outstanding plating/stripping cycles, and the full cell exhibits remarkably better cycling stability and capacity retention as well as capacity utilization at high rates compared to bare lithium.
AB - Lithium metal anodes have attracted extensive attention owing to their high theoretical specific capacity. However, the notorious reactivity of lithium prevents their practical applications, as evidenced by the undesired lithium dendrite growth and unstable solid electrolyte interphase formation. Here, we develop a facile, cost-effective and one-step approach to create an artificial lithium metal/electrolyte interphase by treating the lithium anode with a tin-containing electrolyte. As a result, an artificial solid electrolyte interphase composed of lithium fluoride, tin, and the tin-lithium alloy is formed, which not only ensures fast lithium-ion diffusion and suppresses lithium dendrite growth but also brings a synergistic effect of storing lithium via a reversible tin-lithium alloy formation and enabling lithium plating underneath it. With such an artificial solid electrolyte interphase, lithium symmetrical cells show outstanding plating/stripping cycles, and the full cell exhibits remarkably better cycling stability and capacity retention as well as capacity utilization at high rates compared to bare lithium.
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U2 - 10.1038/s41467-019-13774-2
DO - 10.1038/s41467-019-13774-2
M3 - Article
C2 - 31900398
AN - SCOPUS:85077480376
SN - 2041-1723
VL - 11
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 93
ER -