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*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

83 引用 (Scopus)

摘要

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.

源语言英语
文章编号2200368
期刊Advanced Energy Materials
12
24
DOI
出版状态已出版 - 23 6月 2022

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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), 文章 2200368. https://doi.org/10.1002/aenm.202200368