Semi-solid alkali metal electrodes enabling high critical current densities in solid electrolyte batteries
The need for higher energy-density rechargeable batteries has generated interest in alkali metal electrodes paired with solid electrolytes. However, metal penetration and electrolyte fracture at low current densities have emerged as fundamental barriers. Here we show that for pure metals in the Li–N...
| Main Authors: | , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Science and Business Media LLC
2022
|
| Online Access: | https://hdl.handle.net/1721.1/142488 |
| _version_ | 1811069639293140992 |
|---|---|
| author | Park, Richard J-Y Eschler, Christopher M Fincher, Cole D Badel, Andres F Guan, Pinwen Pharr, Matt Sheldon, Brian W Carter, W Craig Viswanathan, Venkatasubramanian Chiang, Yet-Ming |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Park, Richard J-Y Eschler, Christopher M Fincher, Cole D Badel, Andres F Guan, Pinwen Pharr, Matt Sheldon, Brian W Carter, W Craig Viswanathan, Venkatasubramanian Chiang, Yet-Ming |
| author_sort | Park, Richard J-Y |
| collection | MIT |
| description | The need for higher energy-density rechargeable batteries has generated interest in alkali metal electrodes paired with solid electrolytes. However, metal penetration and electrolyte fracture at low current densities have emerged as fundamental barriers. Here we show that for pure metals in the Li–Na–K system, the critical current densities scale inversely to mechanical deformation resistance. Furthermore, we demonstrate two electrode architectures in which the presence of a liquid phase enables high current densities while it preserves the shape retention and packaging advantages of solid electrodes. First, biphasic Na–K alloys show K critical current densities (with the K-β″-Al O electrolyte) that exceed 15 mA cm . Second, introducing a wetting interfacial film of Na–K liquid between Li metal and Li La Zr Ta O solid electrolyte doubles the critical current density and permits cycling at areal capacities that exceed 3.5 mAh cm . These design approaches hold promise for overcoming electrochemomechanical stability issues that have heretofore limited the performance of solid-state metal batteries. + ‒2 ‒2 2 3 6.75 3 1.75 0.25 12 |
| first_indexed | 2024-09-23T08:13:34Z |
| format | Article |
| id | mit-1721.1/142488 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T08:13:34Z |
| publishDate | 2022 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1424882023-03-29T20:10:41Z Semi-solid alkali metal electrodes enabling high critical current densities in solid electrolyte batteries Park, Richard J-Y Eschler, Christopher M Fincher, Cole D Badel, Andres F Guan, Pinwen Pharr, Matt Sheldon, Brian W Carter, W Craig Viswanathan, Venkatasubramanian Chiang, Yet-Ming Massachusetts Institute of Technology. Department of Materials Science and Engineering The need for higher energy-density rechargeable batteries has generated interest in alkali metal electrodes paired with solid electrolytes. However, metal penetration and electrolyte fracture at low current densities have emerged as fundamental barriers. Here we show that for pure metals in the Li–Na–K system, the critical current densities scale inversely to mechanical deformation resistance. Furthermore, we demonstrate two electrode architectures in which the presence of a liquid phase enables high current densities while it preserves the shape retention and packaging advantages of solid electrodes. First, biphasic Na–K alloys show K critical current densities (with the K-β″-Al O electrolyte) that exceed 15 mA cm . Second, introducing a wetting interfacial film of Na–K liquid between Li metal and Li La Zr Ta O solid electrolyte doubles the critical current density and permits cycling at areal capacities that exceed 3.5 mAh cm . These design approaches hold promise for overcoming electrochemomechanical stability issues that have heretofore limited the performance of solid-state metal batteries. + ‒2 ‒2 2 3 6.75 3 1.75 0.25 12 2022-05-11T17:29:04Z 2022-05-11T17:29:04Z 2021 2022-05-11T17:25:55Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142488 Park, Richard J-Y, Eschler, Christopher M, Fincher, Cole D, Badel, Andres F, Guan, Pinwen et al. 2021. "Semi-solid alkali metal electrodes enabling high critical current densities in solid electrolyte batteries." Nature Energy, 6 (3). en 10.1038/S41560-021-00786-W Nature Energy Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Springer Science and Business Media LLC DOE repository |
| spellingShingle | Park, Richard J-Y Eschler, Christopher M Fincher, Cole D Badel, Andres F Guan, Pinwen Pharr, Matt Sheldon, Brian W Carter, W Craig Viswanathan, Venkatasubramanian Chiang, Yet-Ming Semi-solid alkali metal electrodes enabling high critical current densities in solid electrolyte batteries |
| title | Semi-solid alkali metal electrodes enabling high critical current densities in solid electrolyte batteries |
| title_full | Semi-solid alkali metal electrodes enabling high critical current densities in solid electrolyte batteries |
| title_fullStr | Semi-solid alkali metal electrodes enabling high critical current densities in solid electrolyte batteries |
| title_full_unstemmed | Semi-solid alkali metal electrodes enabling high critical current densities in solid electrolyte batteries |
| title_short | Semi-solid alkali metal electrodes enabling high critical current densities in solid electrolyte batteries |
| title_sort | semi solid alkali metal electrodes enabling high critical current densities in solid electrolyte batteries |
| url | https://hdl.handle.net/1721.1/142488 |
| work_keys_str_mv | AT parkrichardjy semisolidalkalimetalelectrodesenablinghighcriticalcurrentdensitiesinsolidelectrolytebatteries AT eschlerchristopherm semisolidalkalimetalelectrodesenablinghighcriticalcurrentdensitiesinsolidelectrolytebatteries AT finchercoled semisolidalkalimetalelectrodesenablinghighcriticalcurrentdensitiesinsolidelectrolytebatteries AT badelandresf semisolidalkalimetalelectrodesenablinghighcriticalcurrentdensitiesinsolidelectrolytebatteries AT guanpinwen semisolidalkalimetalelectrodesenablinghighcriticalcurrentdensitiesinsolidelectrolytebatteries AT pharrmatt semisolidalkalimetalelectrodesenablinghighcriticalcurrentdensitiesinsolidelectrolytebatteries AT sheldonbrianw semisolidalkalimetalelectrodesenablinghighcriticalcurrentdensitiesinsolidelectrolytebatteries AT carterwcraig semisolidalkalimetalelectrodesenablinghighcriticalcurrentdensitiesinsolidelectrolytebatteries AT viswanathanvenkatasubramanian semisolidalkalimetalelectrodesenablinghighcriticalcurrentdensitiesinsolidelectrolytebatteries AT chiangyetming semisolidalkalimetalelectrodesenablinghighcriticalcurrentdensitiesinsolidelectrolytebatteries |