Design Principles of Artificial Solid Electrolyte Interphases for Lithium-Metal Anodes
Lithium metal is a promising anode to provide high energy density for next-generation batteries. However, it has not been implemented due to its low cycling efficiency, which results from the formation of an unstable solid electrolyte interphase (SEI). The SEIs formed with traditional liquid electro...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-07-01
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| Series: | Cell Reports Physical Science |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666386420301181 |
| _version_ | 1818340554359963648 |
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| author | Zhiao Yu Yi Cui Zhenan Bao |
| author_facet | Zhiao Yu Yi Cui Zhenan Bao |
| author_sort | Zhiao Yu |
| collection | DOAJ |
| description | Lithium metal is a promising anode to provide high energy density for next-generation batteries. However, it has not been implemented due to its low cycling efficiency, which results from the formation of an unstable solid electrolyte interphase (SEI). The SEIs formed with traditional liquid electrolytes are heterogeneous and easy to crack during cycling, thus resulting in the formation of dendritic and dead Li, and further devastating the electrode performance. To solve these issues, efforts have been made to replace natural SEIs with artificial SEIs (ASEIs). Here, we discuss critical design principles of ASEIs based on the understanding of SEI failure mechanisms. Three key principles for a successful ASEI are identified: (1) mechanical stability, which can be either high strength or adaptivity, (2) spatially uniform Li+ transport with moderate conductivity and even single-ion conduction, and (3) chemical passivation to mitigate Li-electrolyte parasitic reactions. Selected examples of recently developed ASEIs are categorized and elaborated. Finally, future directions are given for ASEI designs. |
| first_indexed | 2024-12-13T15:44:45Z |
| format | Article |
| id | doaj.art-2ac918d61cbc469983fc0174f219562c |
| institution | Directory Open Access Journal |
| issn | 2666-3864 |
| language | English |
| last_indexed | 2024-12-13T15:44:45Z |
| publishDate | 2020-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Cell Reports Physical Science |
| spelling | doaj.art-2ac918d61cbc469983fc0174f219562c2022-12-21T23:39:43ZengElsevierCell Reports Physical Science2666-38642020-07-0117100119Design Principles of Artificial Solid Electrolyte Interphases for Lithium-Metal AnodesZhiao Yu0Yi Cui1Zhenan Bao2Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA; Department of Chemistry, Stanford University, Stanford, CA 94305, USADepartment of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA; Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA; Corresponding authorDepartment of Chemical Engineering, Stanford University, Stanford, CA 94305, USA; Corresponding authorLithium metal is a promising anode to provide high energy density for next-generation batteries. However, it has not been implemented due to its low cycling efficiency, which results from the formation of an unstable solid electrolyte interphase (SEI). The SEIs formed with traditional liquid electrolytes are heterogeneous and easy to crack during cycling, thus resulting in the formation of dendritic and dead Li, and further devastating the electrode performance. To solve these issues, efforts have been made to replace natural SEIs with artificial SEIs (ASEIs). Here, we discuss critical design principles of ASEIs based on the understanding of SEI failure mechanisms. Three key principles for a successful ASEI are identified: (1) mechanical stability, which can be either high strength or adaptivity, (2) spatially uniform Li+ transport with moderate conductivity and even single-ion conduction, and (3) chemical passivation to mitigate Li-electrolyte parasitic reactions. Selected examples of recently developed ASEIs are categorized and elaborated. Finally, future directions are given for ASEI designs.http://www.sciencedirect.com/science/article/pii/S2666386420301181 |
| spellingShingle | Zhiao Yu Yi Cui Zhenan Bao Design Principles of Artificial Solid Electrolyte Interphases for Lithium-Metal Anodes Cell Reports Physical Science |
| title | Design Principles of Artificial Solid Electrolyte Interphases for Lithium-Metal Anodes |
| title_full | Design Principles of Artificial Solid Electrolyte Interphases for Lithium-Metal Anodes |
| title_fullStr | Design Principles of Artificial Solid Electrolyte Interphases for Lithium-Metal Anodes |
| title_full_unstemmed | Design Principles of Artificial Solid Electrolyte Interphases for Lithium-Metal Anodes |
| title_short | Design Principles of Artificial Solid Electrolyte Interphases for Lithium-Metal Anodes |
| title_sort | design principles of artificial solid electrolyte interphases for lithium metal anodes |
| url | http://www.sciencedirect.com/science/article/pii/S2666386420301181 |
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