Lithium-ion conductive ceramic textile: A new architecture for flexible solid-state lithium metal batteries

Publication date: Available online 2 February 2018
Source:Materials Today
Author(s): Yunhui Gong, Kun Fu, Shaomao Xu, Jiaqi Dai, Tanner R. Hamann, Lei Zhang, Gregory T. Hitz, Zhezhen Fu, Zhaohui Ma, Dennis W. McOwen, Xiaogang Han, Liangbing Hu, Eric D. Wachsman
Designing solid-state lithium metal batteries requires fast lithium-ion conductors, good electrochemical stability, and scalable processing approaches to device integration. In this work, we demonstrate a unique design for a flexible lithium-ion conducting ceramic textile with the above features for use in solid-state batteries. The ceramic textile was based on the garnet-type conductor Li7La3Zr2O12 and exhibited a range of desirable chemical and structural properties, including: lithium-ion conducting cubic structure, low density, multi-scale porosity, high surface area/volume ratio, and good flexibility. The solid garnet textile enabled reinforcement of a solid polymer electrolyte to achieve high lithium-ion conductivity and stable long-term Li cycling over 500 h without failure. The textile also provided an electrolyte framework when designing a 3D electrode to realize ultrahigh cathode loading (10.8 g/cm² sulfur) for high-performance Li-metal batteries.

Graphical abstract

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