Controlling Li deposition below the interface
The desire for high-energy-density batteries calls for the revival of the Li metal anode. However, its application is hindered by enormous challenges associated with Li deposition/desolvation behaviors, such as side reactions, volume change, and dendrite formation. To overcome these challenges, Li d...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2022-01-01
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| Series: | eScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667141722000106 |
| _version_ | 1811199309657407488 |
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| author | Wenzhuo Cao Quan Li Xiqian Yu Hong Li |
| author_facet | Wenzhuo Cao Quan Li Xiqian Yu Hong Li |
| author_sort | Wenzhuo Cao |
| collection | DOAJ |
| description | The desire for high-energy-density batteries calls for the revival of the Li metal anode. However, its application is hindered by enormous challenges associated with Li deposition/desolvation behaviors, such as side reactions, volume change, and dendrite formation. To overcome these challenges, Li deposition must be controlled to remain below the separator. Further, to enable longer cycle life, Li deposition should be constrained below the solid electrolyte interphase (SEI). To achieve these goals, it is critical to have a deep theoretical understanding and corresponding strategies. This paper examines Li plating/stripping in terms of behaviors, mechanisms, and influencing factors, and it proposes general strategies to control Li deposition. Comprehensive design strategies for the electrode, electrolyte, and their interface are essential. Three dimensional (3D) anodes are recommended to store most of the Li deposited below the surface of the anode. Artificial interface engineering can reduce the risk of Li deposition outside of the 3D anode, while electrolyte engineering favors Li transport, regulates Li deposition, and suppresses dendrites, serving as the final barrier to uncontrolled Li deposition. This paper reviews systemic theories and solutions to control Li deposition below the interface, paving the way for a promising route to build safer lithium metal batteries. |
| first_indexed | 2024-04-12T01:46:57Z |
| format | Article |
| id | doaj.art-2b6163bee655456bae39a65c0006f2f3 |
| institution | Directory Open Access Journal |
| issn | 2667-1417 |
| language | English |
| last_indexed | 2024-04-12T01:46:57Z |
| publishDate | 2022-01-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | eScience |
| spelling | doaj.art-2b6163bee655456bae39a65c0006f2f32022-12-22T03:53:03ZengKeAi Communications Co. Ltd.eScience2667-14172022-01-01214778Controlling Li deposition below the interfaceWenzhuo Cao0Quan Li1Xiqian Yu2Hong Li3Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, ChinaBeijing Advanced Innovation Center for Materials Genome Engineering, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, ChinaBeijing Advanced Innovation Center for Materials Genome Engineering, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China; Corresponding authors.Beijing Advanced Innovation Center for Materials Genome Engineering, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China; Yangtze River Delta Physics Research Center Co. Ltd, Liyang, 213300, China; Corresponding authors.The desire for high-energy-density batteries calls for the revival of the Li metal anode. However, its application is hindered by enormous challenges associated with Li deposition/desolvation behaviors, such as side reactions, volume change, and dendrite formation. To overcome these challenges, Li deposition must be controlled to remain below the separator. Further, to enable longer cycle life, Li deposition should be constrained below the solid electrolyte interphase (SEI). To achieve these goals, it is critical to have a deep theoretical understanding and corresponding strategies. This paper examines Li plating/stripping in terms of behaviors, mechanisms, and influencing factors, and it proposes general strategies to control Li deposition. Comprehensive design strategies for the electrode, electrolyte, and their interface are essential. Three dimensional (3D) anodes are recommended to store most of the Li deposited below the surface of the anode. Artificial interface engineering can reduce the risk of Li deposition outside of the 3D anode, while electrolyte engineering favors Li transport, regulates Li deposition, and suppresses dendrites, serving as the final barrier to uncontrolled Li deposition. This paper reviews systemic theories and solutions to control Li deposition below the interface, paving the way for a promising route to build safer lithium metal batteries.http://www.sciencedirect.com/science/article/pii/S2667141722000106Li depositionLithium metal anodeInterfaceDendriteSolid-state electrolyte |
| spellingShingle | Wenzhuo Cao Quan Li Xiqian Yu Hong Li Controlling Li deposition below the interface eScience Li deposition Lithium metal anode Interface Dendrite Solid-state electrolyte |
| title | Controlling Li deposition below the interface |
| title_full | Controlling Li deposition below the interface |
| title_fullStr | Controlling Li deposition below the interface |
| title_full_unstemmed | Controlling Li deposition below the interface |
| title_short | Controlling Li deposition below the interface |
| title_sort | controlling li deposition below the interface |
| topic | Li deposition Lithium metal anode Interface Dendrite Solid-state electrolyte |
| url | http://www.sciencedirect.com/science/article/pii/S2667141722000106 |
| work_keys_str_mv | AT wenzhuocao controllinglidepositionbelowtheinterface AT quanli controllinglidepositionbelowtheinterface AT xiqianyu controllinglidepositionbelowtheinterface AT hongli controllinglidepositionbelowtheinterface |