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- Title
Encapsulating and Operating a Stable Li<sub>3</sub>ErBr<sub>6</sub>‐Based Solid Li–SeS<sub>2</sub> Battery at Room Temperature.
- Authors
Shi, Xiaomeng; Zeng, Zhichao; Zhang, Hongtu; Huang, Yunhui; Yan, Chun‐Hua; Du, Yaping
- Abstract
Rare earth‐based halide solid electrolytes (RE‐HSEs) are noted due to their comprehensive properties of good ionic conductivity, electrochemical window, and deformability. However, the types and applications of RE‐HSEs need to be further expanded. Here, a highly purified RE‐HSE Li3ErBr6 (LErB) is synthesized successfully by a vacuum evaporation method. The prepared LErB possesses a high ionic conductivity of 1.0 mS cm−1 with an electrochemical window of 1.5–3.4 V. The LErB is applied in a solid Li–SeS2 battery, which can realize stable cycling performance for 300 cycles and good rate performance at room temperature. Moreover, to evaluate the practicability of the LErB‐based Li–SeS2 battery, a pouch‐type cell is assembled, which can light a diode array even after bending and cutting. These results demonstrate that LErB‐based solid Li–SeS2 cells possess advantages in battery packaging and operation, which can improve the practicability of all‐solid‐state lithium batteries.
- Subjects
SOLID state batteries; IONIC conductivity; SOLID electrolytes; LITHIUM cells; STORAGE batteries
- Publication
Advanced Functional Materials, 2023, Vol 33, Issue 15, p1
- ISSN
1616-301X
- Publication type
Article
- DOI
10.1002/adfm.202213638