Metal-phosphide-doped Li7P3S11 glass-ceramic electrolyte with high ionic conductivity for all-solid-state lithium-sulfur batteries

Qi Ge; Lei Zhou; Yi meng Lian; Xiaoling Zhang; Renjie Chen; Wen Yang

doi:10.1016/j.elecom.2018.10.024

Metal-phosphide-doped Li₇P₃S₁₁ glass-ceramic electrolyte with high ionic conductivity for all-solid-state lithium-sulfur batteries

Qi Ge, Lei Zhou, Yi meng Lian, Xiaoling Zhang, Renjie Chen^*, Wen Yang

^*Corresponding author for this work

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

Novel glass-ceramic electrolytes of (100-x) (70Li₂S-30P₂S₅)-xNi₂P (x = 0, 1, 2, 3, 4) with high ionic conductivity were proposed with the addition of Ni₂P. The 2 mol% Ni₂P containing electrolyte (Li₇Ni_0.2P_3.1S₁₁) displays the highest lithium-ion conductivity of 2.22 mS cm⁻¹ at room temperature, which is 1.6 times higher than pristine Li₇P₃S₁₁. By direct combination with Li₂S, the fabricated Li₇Ni_0.2P_3.1S₁₁-Li₂S all-solid-state battery exhibits an initial discharge capacity of 429 mAh g⁻¹ at 0.064 mA cm⁻² and 454 mAh g⁻¹ at 20th charging/discharging cycle with a high Coulombic efficiency of 99.7%.

Original language	English
Pages (from-to)	100-104
Number of pages	5
Journal	Electrochemistry Communications
Volume	97
DOIs	https://doi.org/10.1016/j.elecom.2018.10.024
Publication status	Published - Dec 2018

Keywords

All-solid-state lithium‑sulfur batteries
LiS utilization
Lithium-ion conductivity
NiP doped LiPS

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10.1016/j.elecom.2018.10.024

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@article{d5f8fcc25d794bccaf7e163612f55a9a,

title = "Metal-phosphide-doped Li7P3S11 glass-ceramic electrolyte with high ionic conductivity for all-solid-state lithium-sulfur batteries",

abstract = "Novel glass-ceramic electrolytes of (100-x) (70Li2S-30P2S5)-xNi2P (x = 0, 1, 2, 3, 4) with high ionic conductivity were proposed with the addition of Ni2P. The 2 mol% Ni2P containing electrolyte (Li7Ni0.2P3.1S11) displays the highest lithium-ion conductivity of 2.22 mS cm−1 at room temperature, which is 1.6 times higher than pristine Li7P3S11. By direct combination with Li2S, the fabricated Li7Ni0.2P3.1S11-Li2S all-solid-state battery exhibits an initial discharge capacity of 429 mAh g−1 at 0.064 mA cm−2 and 454 mAh g−1 at 20th charging/discharging cycle with a high Coulombic efficiency of 99.7%.",

keywords = "All-solid-state lithium‑sulfur batteries, LiS utilization, Lithium-ion conductivity, NiP doped LiPS",

author = "Qi Ge and Lei Zhou and Lian, {Yi meng} and Xiaoling Zhang and Renjie Chen and Wen Yang",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = dec,

doi = "10.1016/j.elecom.2018.10.024",

language = "English",

volume = "97",

pages = "100--104",

journal = "Electrochemistry Communications",

issn = "1388-2481",

publisher = "Elsevier Inc.",

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TY - JOUR

T1 - Metal-phosphide-doped Li7P3S11 glass-ceramic electrolyte with high ionic conductivity for all-solid-state lithium-sulfur batteries

AU - Ge, Qi

AU - Zhou, Lei

AU - Lian, Yi meng

AU - Zhang, Xiaoling

AU - Chen, Renjie

AU - Yang, Wen

PY - 2018/12

Y1 - 2018/12

N2 - Novel glass-ceramic electrolytes of (100-x) (70Li2S-30P2S5)-xNi2P (x = 0, 1, 2, 3, 4) with high ionic conductivity were proposed with the addition of Ni2P. The 2 mol% Ni2P containing electrolyte (Li7Ni0.2P3.1S11) displays the highest lithium-ion conductivity of 2.22 mS cm−1 at room temperature, which is 1.6 times higher than pristine Li7P3S11. By direct combination with Li2S, the fabricated Li7Ni0.2P3.1S11-Li2S all-solid-state battery exhibits an initial discharge capacity of 429 mAh g−1 at 0.064 mA cm−2 and 454 mAh g−1 at 20th charging/discharging cycle with a high Coulombic efficiency of 99.7%.

AB - Novel glass-ceramic electrolytes of (100-x) (70Li2S-30P2S5)-xNi2P (x = 0, 1, 2, 3, 4) with high ionic conductivity were proposed with the addition of Ni2P. The 2 mol% Ni2P containing electrolyte (Li7Ni0.2P3.1S11) displays the highest lithium-ion conductivity of 2.22 mS cm−1 at room temperature, which is 1.6 times higher than pristine Li7P3S11. By direct combination with Li2S, the fabricated Li7Ni0.2P3.1S11-Li2S all-solid-state battery exhibits an initial discharge capacity of 429 mAh g−1 at 0.064 mA cm−2 and 454 mAh g−1 at 20th charging/discharging cycle with a high Coulombic efficiency of 99.7%.

KW - All-solid-state lithium‑sulfur batteries

KW - LiS utilization

KW - Lithium-ion conductivity

KW - NiP doped LiPS

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U2 - 10.1016/j.elecom.2018.10.024

DO - 10.1016/j.elecom.2018.10.024

M3 - Article

AN - SCOPUS:85056448658

SN - 1388-2481

VL - 97

SP - 100

EP - 104

JO - Electrochemistry Communications

JF - Electrochemistry Communications

ER -

Metal-phosphide-doped Li₇P₃S₁₁ glass-ceramic electrolyte with high ionic conductivity for all-solid-state lithium-sulfur batteries

Abstract

Keywords

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