Engineering stable interfaces for three-dimensional lithium metal anodes

Jin Xie, Jiangyan Wang, Hye Ryoung Lee, Kai Yan, Yuzhang Li, Feifei Shi, William Huang, Allen Pei, Gilbert Chen, Ram Subbaraman, Jake Christensen, Yi Cui

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Lithium metal has long been considered one of the most promising anode materials for advanced lithium batteries (for example, Li-S and Li-O2), which could offer significantly improved energy density compared to state-of-the-art lithium ion batteries. Despite decades of intense research efforts, its commercialization remains limited by poor cyclability and safety concerns of lithium metal anodes. One root cause is the parasitic reaction between metallic lithium and the organic liquid electrolyte, resulting in continuous formation of an unstable solid electrolyte interphase, which consumes both active lithium and electrolyte. Until now, it has been challenging to completely shut down the parasitic reaction. We find that a thin-layer coating applied through atomic layer deposition on a hollow carbon host guides lithium deposition inside the hollow carbon sphere and simultaneously prevents electrolyte infiltration by sealing pinholes on the shell of the hollow carbon sphere. By encapsulating lithium inside the stable host, parasitic reactions are prevented, resulting in impressive cycling behavior. We report more than 500 cycles at a high coulombic efficiency of 99% in an ether-based electrolyte at a cycling rate of 0.5 mA/cm2 and a cycling capacity of 1 mAh/cm2, which is among the most stable Li anodes reported so far.

Original languageEnglish (US)
Article numbereaat5168
JournalScience Advances
Volume4
Issue number7
DOIs
StatePublished - Jul 27 2018

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Lithium
Electrodes
Metals
Electrolytes
Carbon
Interphase
Ether
Ions
Safety
Research

All Science Journal Classification (ASJC) codes

  • General

Cite this

Xie, J., Wang, J., Lee, H. R., Yan, K., Li, Y., Shi, F., ... Cui, Y. (2018). Engineering stable interfaces for three-dimensional lithium metal anodes. Science Advances, 4(7), [eaat5168]. https://doi.org/10.1126/sciadv.aat5168
Xie, Jin ; Wang, Jiangyan ; Lee, Hye Ryoung ; Yan, Kai ; Li, Yuzhang ; Shi, Feifei ; Huang, William ; Pei, Allen ; Chen, Gilbert ; Subbaraman, Ram ; Christensen, Jake ; Cui, Yi. / Engineering stable interfaces for three-dimensional lithium metal anodes. In: Science Advances. 2018 ; Vol. 4, No. 7.
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abstract = "Lithium metal has long been considered one of the most promising anode materials for advanced lithium batteries (for example, Li-S and Li-O2), which could offer significantly improved energy density compared to state-of-the-art lithium ion batteries. Despite decades of intense research efforts, its commercialization remains limited by poor cyclability and safety concerns of lithium metal anodes. One root cause is the parasitic reaction between metallic lithium and the organic liquid electrolyte, resulting in continuous formation of an unstable solid electrolyte interphase, which consumes both active lithium and electrolyte. Until now, it has been challenging to completely shut down the parasitic reaction. We find that a thin-layer coating applied through atomic layer deposition on a hollow carbon host guides lithium deposition inside the hollow carbon sphere and simultaneously prevents electrolyte infiltration by sealing pinholes on the shell of the hollow carbon sphere. By encapsulating lithium inside the stable host, parasitic reactions are prevented, resulting in impressive cycling behavior. We report more than 500 cycles at a high coulombic efficiency of 99{\%} in an ether-based electrolyte at a cycling rate of 0.5 mA/cm2 and a cycling capacity of 1 mAh/cm2, which is among the most stable Li anodes reported so far.",
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Xie, J, Wang, J, Lee, HR, Yan, K, Li, Y, Shi, F, Huang, W, Pei, A, Chen, G, Subbaraman, R, Christensen, J & Cui, Y 2018, 'Engineering stable interfaces for three-dimensional lithium metal anodes', Science Advances, vol. 4, no. 7, eaat5168. https://doi.org/10.1126/sciadv.aat5168

Engineering stable interfaces for three-dimensional lithium metal anodes. / Xie, Jin; Wang, Jiangyan; Lee, Hye Ryoung; Yan, Kai; Li, Yuzhang; Shi, Feifei; Huang, William; Pei, Allen; Chen, Gilbert; Subbaraman, Ram; Christensen, Jake; Cui, Yi.

In: Science Advances, Vol. 4, No. 7, eaat5168, 27.07.2018.

Research output: Contribution to journalArticle

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T1 - Engineering stable interfaces for three-dimensional lithium metal anodes

AU - Xie, Jin

AU - Wang, Jiangyan

AU - Lee, Hye Ryoung

AU - Yan, Kai

AU - Li, Yuzhang

AU - Shi, Feifei

AU - Huang, William

AU - Pei, Allen

AU - Chen, Gilbert

AU - Subbaraman, Ram

AU - Christensen, Jake

AU - Cui, Yi

PY - 2018/7/27

Y1 - 2018/7/27

N2 - Lithium metal has long been considered one of the most promising anode materials for advanced lithium batteries (for example, Li-S and Li-O2), which could offer significantly improved energy density compared to state-of-the-art lithium ion batteries. Despite decades of intense research efforts, its commercialization remains limited by poor cyclability and safety concerns of lithium metal anodes. One root cause is the parasitic reaction between metallic lithium and the organic liquid electrolyte, resulting in continuous formation of an unstable solid electrolyte interphase, which consumes both active lithium and electrolyte. Until now, it has been challenging to completely shut down the parasitic reaction. We find that a thin-layer coating applied through atomic layer deposition on a hollow carbon host guides lithium deposition inside the hollow carbon sphere and simultaneously prevents electrolyte infiltration by sealing pinholes on the shell of the hollow carbon sphere. By encapsulating lithium inside the stable host, parasitic reactions are prevented, resulting in impressive cycling behavior. We report more than 500 cycles at a high coulombic efficiency of 99% in an ether-based electrolyte at a cycling rate of 0.5 mA/cm2 and a cycling capacity of 1 mAh/cm2, which is among the most stable Li anodes reported so far.

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