Rechargeable-battery chemistry based on lithium oxide growth through nitrate anion redox
Next-generation lithium-battery cathodes often involve the growth of lithium-rich phases, which enable specific capacities that are 2−3 times higher than insertion cathode materials, such as lithium cobalt oxide. Here, we investigated battery chemistry previously deemed irreversible in which lithium...
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| Format: | Article |
| Language: | English |
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Springer Science and Business Media LLC
2020
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| Online Access: | https://hdl.handle.net/1721.1/127777 |
| _version_ | 1811076365855752192 |
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| author | Gallant, Betar M. (Betar Maurkah) |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Gallant, Betar M. (Betar Maurkah) |
| author_sort | Gallant, Betar M. (Betar Maurkah) |
| collection | MIT |
| description | Next-generation lithium-battery cathodes often involve the growth of lithium-rich phases, which enable specific capacities that are 2−3 times higher than insertion cathode materials, such as lithium cobalt oxide. Here, we investigated battery chemistry previously deemed irreversible in which lithium oxide, a lithium-rich phase, grows through the reduction of the nitrate anion in a lithium nitrate-based molten salt at 150 °C. Using a suite of independent characterization techniques, we demonstrated that a Ni nanoparticle catalyst enables the reversible growth and dissolution of micrometre-sized lithium oxide crystals through the effective catalysis of nitrate reduction and nitrite oxidation, which results in high cathode areal capacities (~12 mAh cm–2). These results enable a rechargeable battery system that has a full-cell theoretical specific energy of 1,579 Wh kg–1, in which a molten nitrate salt serves as both an active material and the electrolyte. |
| first_indexed | 2024-09-23T10:20:17Z |
| format | Article |
| id | mit-1721.1/127777 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:20:17Z |
| publishDate | 2020 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1277772022-09-26T17:19:13Z Rechargeable-battery chemistry based on lithium oxide growth through nitrate anion redox Gallant, Betar M. (Betar Maurkah) Massachusetts Institute of Technology. Department of Mechanical Engineering Next-generation lithium-battery cathodes often involve the growth of lithium-rich phases, which enable specific capacities that are 2−3 times higher than insertion cathode materials, such as lithium cobalt oxide. Here, we investigated battery chemistry previously deemed irreversible in which lithium oxide, a lithium-rich phase, grows through the reduction of the nitrate anion in a lithium nitrate-based molten salt at 150 °C. Using a suite of independent characterization techniques, we demonstrated that a Ni nanoparticle catalyst enables the reversible growth and dissolution of micrometre-sized lithium oxide crystals through the effective catalysis of nitrate reduction and nitrite oxidation, which results in high cathode areal capacities (~12 mAh cm–2). These results enable a rechargeable battery system that has a full-cell theoretical specific energy of 1,579 Wh kg–1, in which a molten nitrate salt serves as both an active material and the electrolyte. Vehicle Technologies Program (U.S.) (Award DE-18 FOA-0000991 (0991-1872)) 2020-09-30T16:14:23Z 2020-09-30T16:14:23Z 2019-10 2020-09-30T13:45:38Z Article http://purl.org/eprint/type/JournalArticle 1755-4349 1755-4330 https://hdl.handle.net/1721.1/127777 Giordani, Vincent et al. “Rechargeable-battery chemistry based on lithium oxide growth through nitrate anion redox.” Nature Chemistry, 11, 12 (October 2019): 1133–1138 © 2019 The Author(s) en 10.1038/S41557-019-0342-6 Nature Chemistry 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 Prof. Gallant via Elizabeth Soergel |
| spellingShingle | Gallant, Betar M. (Betar Maurkah) Rechargeable-battery chemistry based on lithium oxide growth through nitrate anion redox |
| title | Rechargeable-battery chemistry based on lithium oxide growth through nitrate anion redox |
| title_full | Rechargeable-battery chemistry based on lithium oxide growth through nitrate anion redox |
| title_fullStr | Rechargeable-battery chemistry based on lithium oxide growth through nitrate anion redox |
| title_full_unstemmed | Rechargeable-battery chemistry based on lithium oxide growth through nitrate anion redox |
| title_short | Rechargeable-battery chemistry based on lithium oxide growth through nitrate anion redox |
| title_sort | rechargeable battery chemistry based on lithium oxide growth through nitrate anion redox |
| url | https://hdl.handle.net/1721.1/127777 |
| work_keys_str_mv | AT gallantbetarmbetarmaurkah rechargeablebatterychemistrybasedonlithiumoxidegrowththroughnitrateanionredox |