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Yu Z, Shang SL, Ahn K, Marty DT, Feng R, Engelhard MH, Liu ZK, Lu D. Enhancing Moisture Stability of Sulfide Solid-State Electrolytes by Reversible Amphipathic Molecular Coating. ACS APPLIED MATERIALS & INTERFACES 2022; 14:32035-32042. [PMID: 35816730 DOI: 10.1021/acsami.2c07388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The all-solid-state battery (ASSB) is a promising next-generation energy storage technology for both consumer electronics and electric vehicles because of its high energy density and improved safety. Sulfide solid-state electrolytes (SSEs) have merits of low density, high ionic conductivity, and favorable mechanical properties compared to oxide ceramic and polymer materials. However, mass production and processing of sulfide SSEs remain a grand challenge because of their poor moisture stability. Here, we report a reversible surface coating strategy for enhancing the moisture stability of sulfide SSEs using amphipathic organic molecules. An ultrathin layer of 1-bromopentane is coated on the sulfide SSE surface (e.g., Li7P2S8Br0.5I0.5) via Van der Waals force. 1-Bromopentane has more negative adsorption energy with SSEs than H2O based on first-principles calculations, thereby enhancing the moisture stability of SSEs because the hydrophobic long-chain alkyl tail of 1-bromopentane repels water molecules. Moreover, this amphipathic molecular layer has a negligible effect on ionic conductivity and can be removed reversibly by heating at low temperatures (e.g., 160 °C). This finding opens a new pathway for the surface engineering of moisture-sensitive SSEs and other energy materials, thereby speeding up their deployment in ASSBs.
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Affiliation(s)
- Zhaoxin Yu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Shun-Li Shang
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Kiseuk Ahn
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Daniel T Marty
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Ruozhu Feng
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Mark H Engelhard
- Environmental and Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Zi-Kui Liu
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Dongping Lu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
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Gao J, Sun X, Wang C, Zhang Y, Yang L, Song D, Wu Y, Yang Z, Ohsaka T, Matsumotoc F, Wu J. Sb, O cosubstituted Li10SnP2S12 with high electrochemical stability and air stability for all‐solid‐state lithium batteries. ChemElectroChem 2022. [DOI: 10.1002/celc.202200156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jing Gao
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Xiaolin Sun
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Cheng Wang
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Yuan Zhang
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Li Yang
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Depeng Song
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Yue Wu
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Zewen Yang
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industrial Energy Storage Research Institute CHINA
| | - Takeo Ohsaka
- Kanagawa university Research Institute for Engineering JAPAN
| | | | - Jianfei Wu
- Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences Qingdao Industry Energy Storage Reseach Institute 189 Songling 266101 Qingdao CHINA
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