Self-Healing Janus Interfaces for High-Performance LAGP-Based Lithium Metal Batteries

Qi Liu; Dong Zhou; Devaraj Shanmukaraj; Peng Li; Feiyu Kang; Baohua Li; Michel Armand; Guoxiu Wang

doi:10.1021/acsenergylett.0c00542

Self-Healing Janus Interfaces for High-Performance LAGP-Based Lithium Metal Batteries

Qi Liu, Dong Zhou^*, Devaraj Shanmukaraj, Peng Li, Feiyu Kang, Baohua Li^*, Michel Armand^*, Guoxiu Wang^*

^*Corresponding author for this work

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

134 Citations (Scopus)

Abstract

The application of NASICON-type Li1.5Al0.5Ge1.5P3O12 (LAGP) solid electrolyte in lithium (Li) metal batteries has been retarded by its instability toward metallic Li and the poor interfacial compatibility with cathodes. Here we report a durable LAGP-based Li metal battery by employing self-healing polymer electrolytes (SHEs) as Janus interfaces. The SHEs were constructed on both sides of LAGP pellets by in situ polymerizing a functional monomer and a cross-linker in ionic liquid-based (anodic side in contact with Li metal) or adiponitrile (AN)-based (cathodic side) electrolytes. The as-developed SHEs show flame-retardant, high ionic conductivity (>10-3 S cm-1 at 25 °C), excellent interfacial compatibility with electrodes, and effective inhibition of Li dendrite formation. The LAGP-based Li metal||LiMn2O4 batteries with the SHE interfaces deliver a high reversible capacity with a long cycle.

Original language	English
Pages (from-to)	1456-1464
Number of pages	9
Journal	ACS Energy Letters
Volume	5
Issue number	5
DOIs	https://doi.org/10.1021/acsenergylett.0c00542
Publication status	Published - 8 May 2020
Externally published	Yes

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title = "Self-Healing Janus Interfaces for High-Performance LAGP-Based Lithium Metal Batteries",

abstract = "The application of NASICON-type Li1.5Al0.5Ge1.5P3O12 (LAGP) solid electrolyte in lithium (Li) metal batteries has been retarded by its instability toward metallic Li and the poor interfacial compatibility with cathodes. Here we report a durable LAGP-based Li metal battery by employing self-healing polymer electrolytes (SHEs) as Janus interfaces. The SHEs were constructed on both sides of LAGP pellets by in situ polymerizing a functional monomer and a cross-linker in ionic liquid-based (anodic side in contact with Li metal) or adiponitrile (AN)-based (cathodic side) electrolytes. The as-developed SHEs show flame-retardant, high ionic conductivity (>10-3 S cm-1 at 25 °C), excellent interfacial compatibility with electrodes, and effective inhibition of Li dendrite formation. The LAGP-based Li metal||LiMn2O4 batteries with the SHE interfaces deliver a high reversible capacity with a long cycle.",

author = "Qi Liu and Dong Zhou and Devaraj Shanmukaraj and Peng Li and Feiyu Kang and Baohua Li and Michel Armand and Guoxiu Wang",

note = "Publisher Copyright: Copyright {\textcopyright} 2020 American Chemical Society.",

year = "2020",

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doi = "10.1021/acsenergylett.0c00542",

language = "English",

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T1 - Self-Healing Janus Interfaces for High-Performance LAGP-Based Lithium Metal Batteries

AU - Liu, Qi

AU - Zhou, Dong

AU - Shanmukaraj, Devaraj

AU - Li, Peng

AU - Kang, Feiyu

AU - Li, Baohua

AU - Armand, Michel

AU - Wang, Guoxiu

PY - 2020/5/8

Y1 - 2020/5/8

N2 - The application of NASICON-type Li1.5Al0.5Ge1.5P3O12 (LAGP) solid electrolyte in lithium (Li) metal batteries has been retarded by its instability toward metallic Li and the poor interfacial compatibility with cathodes. Here we report a durable LAGP-based Li metal battery by employing self-healing polymer electrolytes (SHEs) as Janus interfaces. The SHEs were constructed on both sides of LAGP pellets by in situ polymerizing a functional monomer and a cross-linker in ionic liquid-based (anodic side in contact with Li metal) or adiponitrile (AN)-based (cathodic side) electrolytes. The as-developed SHEs show flame-retardant, high ionic conductivity (>10-3 S cm-1 at 25 °C), excellent interfacial compatibility with electrodes, and effective inhibition of Li dendrite formation. The LAGP-based Li metal||LiMn2O4 batteries with the SHE interfaces deliver a high reversible capacity with a long cycle.

AB - The application of NASICON-type Li1.5Al0.5Ge1.5P3O12 (LAGP) solid electrolyte in lithium (Li) metal batteries has been retarded by its instability toward metallic Li and the poor interfacial compatibility with cathodes. Here we report a durable LAGP-based Li metal battery by employing self-healing polymer electrolytes (SHEs) as Janus interfaces. The SHEs were constructed on both sides of LAGP pellets by in situ polymerizing a functional monomer and a cross-linker in ionic liquid-based (anodic side in contact with Li metal) or adiponitrile (AN)-based (cathodic side) electrolytes. The as-developed SHEs show flame-retardant, high ionic conductivity (>10-3 S cm-1 at 25 °C), excellent interfacial compatibility with electrodes, and effective inhibition of Li dendrite formation. The LAGP-based Li metal||LiMn2O4 batteries with the SHE interfaces deliver a high reversible capacity with a long cycle.

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U2 - 10.1021/acsenergylett.0c00542

DO - 10.1021/acsenergylett.0c00542

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SN - 2380-8195

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EP - 1464

JO - ACS Energy Letters

JF - ACS Energy Letters

IS - 5

ER -

Self-Healing Janus Interfaces for High-Performance LAGP-Based Lithium Metal Batteries

Abstract

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