8.5 µm-Thick Flexible-Rigid Hybrid Solid–Electrolyte/Lithium Integration for Air-Stable and Interface-Compatible All-Solid-State Lithium Metal Batteries

Kun Zhang; Feng Wu; Xinran Wang; Suting Weng; Xiaoyu Yang; Huichun Zhao; Ruiqi Guo; Yuheng Sun; Wenbin Zhao; Tinglu Song; Xuefeng Wang; Ying Bai; Chuan Wu

doi:10.1002/aenm.202200368

8.5 µm-Thick Flexible-Rigid Hybrid Solid–Electrolyte/Lithium Integration for Air-Stable and Interface-Compatible All-Solid-State Lithium Metal Batteries

Kun Zhang, Feng Wu, Xinran Wang^*, Suting Weng, Xiaoyu Yang, Huichun Zhao, Ruiqi Guo, Yuheng Sun, Wenbin Zhao, Tinglu Song, Xuefeng Wang, Ying Bai^*, Chuan Wu^*

^*Corresponding author for this work

School of Material Science and Engineering

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

75 Citations (Scopus)

Abstract

All-solid-state lithium batteries (ASSLBs), as the next-generation energy storage system, potentially bridge the gap between high energy density and operational safety. However, the application of ASSLBs is technically handicapped by the extremely weak interfacial contact and dendrite growth that is prone to unstabilize solid electrolyte interphase (SEI) with limited electrochemical performance. In this contribution, air-stable and interface-compatible solid electrolyte/lithium integration is proposed by in situ copolymerization of poly(ethylene glycol methacrylate)-Li_1.5Al_0.5Ge_1.5(PO₄)₃-lithium (PEGMA-LAGP-Li). The first-of-this-kind hierarchy provides a promising synergy of flexibility-rigidity (Young's modulus 3 GPa), high ionic conductivity (2.37 × 10⁻⁴ S cm⁻¹), high lithium-ion transfer number (t_Li+= 0.87), and LiF-rich SEI, all contributing to homogenized lithium-ion flux, significantly prolonged cycle stability (>3500 h) and obvious dendrite suppression for high-performance ASSLBs. Furthermore, the integration protects lithium from air corrosion, providing insights into a novel interface-enhancement paradigm and realizing the first ASSLBs assembly in ambient conditions without any loss of specific capacity.

Original language	English
Article number	2200368
Journal	Advanced Energy Materials
Volume	12
Issue number	24
DOIs	https://doi.org/10.1002/aenm.202200368
Publication status	Published - 23 Jun 2022

Keywords

all-solid-state lithium batteries
in situ polymerization
integrated solid electrolytes
lithium metal anodes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1002/aenm.202200368

Cite this

Zhang, K., Wu, F., Wang, X., Weng, S., Yang, X., Zhao, H., Guo, R., Sun, Y., Zhao, W., Song, T., Wang, X., Bai, Y., & Wu, C. (2022). 8.5 µm-Thick Flexible-Rigid Hybrid Solid–Electrolyte/Lithium Integration for Air-Stable and Interface-Compatible All-Solid-State Lithium Metal Batteries. Advanced Energy Materials, 12(24), Article 2200368. https://doi.org/10.1002/aenm.202200368

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abstract = "All-solid-state lithium batteries (ASSLBs), as the next-generation energy storage system, potentially bridge the gap between high energy density and operational safety. However, the application of ASSLBs is technically handicapped by the extremely weak interfacial contact and dendrite growth that is prone to unstabilize solid electrolyte interphase (SEI) with limited electrochemical performance. In this contribution, air-stable and interface-compatible solid electrolyte/lithium integration is proposed by in situ copolymerization of poly(ethylene glycol methacrylate)-Li1.5Al0.5Ge1.5(PO4)3-lithium (PEGMA-LAGP-Li). The first-of-this-kind hierarchy provides a promising synergy of flexibility-rigidity (Young's modulus 3 GPa), high ionic conductivity (2.37 × 10−4 S cm−1), high lithium-ion transfer number (tLi+= 0.87), and LiF-rich SEI, all contributing to homogenized lithium-ion flux, significantly prolonged cycle stability (>3500 h) and obvious dendrite suppression for high-performance ASSLBs. Furthermore, the integration protects lithium from air corrosion, providing insights into a novel interface-enhancement paradigm and realizing the first ASSLBs assembly in ambient conditions without any loss of specific capacity.",

keywords = "all-solid-state lithium batteries, in situ polymerization, integrated solid electrolytes, lithium metal anodes",

author = "Kun Zhang and Feng Wu and Xinran Wang and Suting Weng and Xiaoyu Yang and Huichun Zhao and Ruiqi Guo and Yuheng Sun and Wenbin Zhao and Tinglu Song and Xuefeng Wang and Ying Bai and Chuan Wu",

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AU - Zhang, Kun

AU - Wu, Feng

AU - Wang, Xinran

AU - Weng, Suting

AU - Yang, Xiaoyu

AU - Zhao, Huichun

AU - Guo, Ruiqi

AU - Sun, Yuheng

AU - Zhao, Wenbin

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AU - Bai, Ying

AU - Wu, Chuan

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AB - All-solid-state lithium batteries (ASSLBs), as the next-generation energy storage system, potentially bridge the gap between high energy density and operational safety. However, the application of ASSLBs is technically handicapped by the extremely weak interfacial contact and dendrite growth that is prone to unstabilize solid electrolyte interphase (SEI) with limited electrochemical performance. In this contribution, air-stable and interface-compatible solid electrolyte/lithium integration is proposed by in situ copolymerization of poly(ethylene glycol methacrylate)-Li1.5Al0.5Ge1.5(PO4)3-lithium (PEGMA-LAGP-Li). The first-of-this-kind hierarchy provides a promising synergy of flexibility-rigidity (Young's modulus 3 GPa), high ionic conductivity (2.37 × 10−4 S cm−1), high lithium-ion transfer number (tLi+= 0.87), and LiF-rich SEI, all contributing to homogenized lithium-ion flux, significantly prolonged cycle stability (>3500 h) and obvious dendrite suppression for high-performance ASSLBs. Furthermore, the integration protects lithium from air corrosion, providing insights into a novel interface-enhancement paradigm and realizing the first ASSLBs assembly in ambient conditions without any loss of specific capacity.

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