Nickel Impurities in the Solid-Electrolyte Interphase of Lithium-Metal Anodes Revealed by Cryogenic Electron Microscopy
Summary: Dissolution of transition metals from high-voltage cathodes and their incorporation into the solid-electrolyte interphase (SEI) of carbonaceous anodes drastically reduces the lifetime of Li-ion batteries. The effects of dissolved transition metals on the performance of carbonaceous anodes a...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-09-01
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| Series: | Cell Reports Physical Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666386420301995 |
| _version_ | 1818301829248712704 |
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| author | Rafael A. Vilá William Huang Yi Cui |
| author_facet | Rafael A. Vilá William Huang Yi Cui |
| author_sort | Rafael A. Vilá |
| collection | DOAJ |
| description | Summary: Dissolution of transition metals from high-voltage cathodes and their incorporation into the solid-electrolyte interphase (SEI) of carbonaceous anodes drastically reduces the lifetime of Li-ion batteries. The effects of dissolved transition metals on the performance of carbonaceous anodes are well characterized; however, the impact on Li-metal anode performance and the SEI is rarely considered. Here, we use cryogenic electron microscopy to reveal the impact of dissolved Ni on the SEI formation process on Li-metal. A link between Ni incorporation into the SEI and the failure of Li-metal batteries is established. We find that Ni is reduced into its metallic state and incorporates as small clusters into the SEI, locally changing the chemistry and nanostructure of the SEI. These chemical and nanostructure changes locally modify the Li-ion and electron transport properties of the SEI, accelerating electrolyte decomposition, increasing formation of “dead” Li, and ultimately causing failure. |
| first_indexed | 2024-12-13T05:29:14Z |
| format | Article |
| id | doaj.art-c06dcd50536949cb84ade3507e44cc30 |
| institution | Directory Open Access Journal |
| issn | 2666-3864 |
| language | English |
| last_indexed | 2024-12-13T05:29:14Z |
| publishDate | 2020-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Cell Reports Physical Science |
| spelling | doaj.art-c06dcd50536949cb84ade3507e44cc302022-12-21T23:58:07ZengElsevierCell Reports Physical Science2666-38642020-09-0119100188Nickel Impurities in the Solid-Electrolyte Interphase of Lithium-Metal Anodes Revealed by Cryogenic Electron MicroscopyRafael A. Vilá0William Huang1Yi Cui2Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USADepartment of Materials Science and Engineering, 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, 2575 Sand Hill Road, Menlo Park, CA 94025, USA; Corresponding authorSummary: Dissolution of transition metals from high-voltage cathodes and their incorporation into the solid-electrolyte interphase (SEI) of carbonaceous anodes drastically reduces the lifetime of Li-ion batteries. The effects of dissolved transition metals on the performance of carbonaceous anodes are well characterized; however, the impact on Li-metal anode performance and the SEI is rarely considered. Here, we use cryogenic electron microscopy to reveal the impact of dissolved Ni on the SEI formation process on Li-metal. A link between Ni incorporation into the SEI and the failure of Li-metal batteries is established. We find that Ni is reduced into its metallic state and incorporates as small clusters into the SEI, locally changing the chemistry and nanostructure of the SEI. These chemical and nanostructure changes locally modify the Li-ion and electron transport properties of the SEI, accelerating electrolyte decomposition, increasing formation of “dead” Li, and ultimately causing failure.http://www.sciencedirect.com/science/article/pii/S2666386420301995nickel dissolutionsolid-electrolyte interphaselithium metal anodecryogenic electron microscopySEI chemistrytransition metal reduction |
| spellingShingle | Rafael A. Vilá William Huang Yi Cui Nickel Impurities in the Solid-Electrolyte Interphase of Lithium-Metal Anodes Revealed by Cryogenic Electron Microscopy Cell Reports Physical Science nickel dissolution solid-electrolyte interphase lithium metal anode cryogenic electron microscopy SEI chemistry transition metal reduction |
| title | Nickel Impurities in the Solid-Electrolyte Interphase of Lithium-Metal Anodes Revealed by Cryogenic Electron Microscopy |
| title_full | Nickel Impurities in the Solid-Electrolyte Interphase of Lithium-Metal Anodes Revealed by Cryogenic Electron Microscopy |
| title_fullStr | Nickel Impurities in the Solid-Electrolyte Interphase of Lithium-Metal Anodes Revealed by Cryogenic Electron Microscopy |
| title_full_unstemmed | Nickel Impurities in the Solid-Electrolyte Interphase of Lithium-Metal Anodes Revealed by Cryogenic Electron Microscopy |
| title_short | Nickel Impurities in the Solid-Electrolyte Interphase of Lithium-Metal Anodes Revealed by Cryogenic Electron Microscopy |
| title_sort | nickel impurities in the solid electrolyte interphase of lithium metal anodes revealed by cryogenic electron microscopy |
| topic | nickel dissolution solid-electrolyte interphase lithium metal anode cryogenic electron microscopy SEI chemistry transition metal reduction |
| url | http://www.sciencedirect.com/science/article/pii/S2666386420301995 |
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