Lithium titanate hydrates with superfast and stable cycling in lithium ion batteries
Lithium titanate and titanium dioxide are two best-known high-performance electrodes that can cycle around 10,000 times in aprotic lithium ion electrolytes. Here we show there exists more lithium titanate hydrates with superfast and stable cycling. That is, water promotes structural diversity and na...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
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Nature Publishing Group
2017
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| Online Access: | http://hdl.handle.net/1721.1/112716 https://orcid.org/0000-0001-7022-5561 https://orcid.org/0000-0002-7841-8058 |
| _version_ | 1811069634134147072 |
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| author | Wang, Shitong Quan, Wei Zhu, Zhi Yang, Yong Liu, Qi Ren, Yang Zhang, Xiaoyi Xu, Rui Hong, Ye Zhang, Zhongtai Amine, Khalil Tang, Zilong Lu, Jun Li, Ju |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Wang, Shitong Quan, Wei Zhu, Zhi Yang, Yong Liu, Qi Ren, Yang Zhang, Xiaoyi Xu, Rui Hong, Ye Zhang, Zhongtai Amine, Khalil Tang, Zilong Lu, Jun Li, Ju |
| author_sort | Wang, Shitong |
| collection | MIT |
| description | Lithium titanate and titanium dioxide are two best-known high-performance electrodes that can cycle around 10,000 times in aprotic lithium ion electrolytes. Here we show there exists more lithium titanate hydrates with superfast and stable cycling. That is, water promotes structural diversity and nanostructuring of compounds, but does not necessarily degrade electrochemical cycling stability or performance in aprotic electrolytes. As a lithium ion battery anode, our multi-phase lithium titanate hydrates show a specific capacity of about 130 mA h g⁻¹ at ∼35 C (fully charged within ∼100 s) and sustain more than 10,000 cycles with capacity fade of only 0.001% per cycle. In situ synchrotron diffraction reveals no 2-phase transformations, but a single solid-solution behavior during battery cycling. So instead of just a nanostructured intermediate to be calcined, lithium titanate hydrates can be the desirable final destination. |
| first_indexed | 2024-09-23T08:13:29Z |
| format | Article |
| id | mit-1721.1/112716 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T08:13:29Z |
| publishDate | 2017 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | mit-1721.1/1127162022-09-30T08:24:38Z Lithium titanate hydrates with superfast and stable cycling in lithium ion batteries Wang, Shitong Quan, Wei Zhu, Zhi Yang, Yong Liu, Qi Ren, Yang Zhang, Xiaoyi Xu, Rui Hong, Ye Zhang, Zhongtai Amine, Khalil Tang, Zilong Lu, Jun Li, Ju Massachusetts Institute of Technology. Department of Materials Science and Engineering Massachusetts Institute of Technology. Department of Nuclear Science and Engineering Wang, Shitong Zhu, Zhi Li, Ju Lithium titanate and titanium dioxide are two best-known high-performance electrodes that can cycle around 10,000 times in aprotic lithium ion electrolytes. Here we show there exists more lithium titanate hydrates with superfast and stable cycling. That is, water promotes structural diversity and nanostructuring of compounds, but does not necessarily degrade electrochemical cycling stability or performance in aprotic electrolytes. As a lithium ion battery anode, our multi-phase lithium titanate hydrates show a specific capacity of about 130 mA h g⁻¹ at ∼35 C (fully charged within ∼100 s) and sustain more than 10,000 cycles with capacity fade of only 0.001% per cycle. In situ synchrotron diffraction reveals no 2-phase transformations, but a single solid-solution behavior during battery cycling. So instead of just a nanostructured intermediate to be calcined, lithium titanate hydrates can be the desirable final destination. United States. Department of Energy (Contract DE-AC0206CH11357) 2017-12-12T16:40:41Z 2017-12-12T16:40:41Z 2017-09 2016-11 2017-12-11T19:51:12Z Article http://purl.org/eprint/type/JournalArticle 2041-1723 http://hdl.handle.net/1721.1/112716 Wang, Shitong et al. “Lithium Titanate Hydrates with Superfast and Stable Cycling in Lithium Ion Batteries.” Nature Communications 8, 1 (September 2017): 627 © 2017 The Author(s) https://orcid.org/0000-0001-7022-5561 https://orcid.org/0000-0002-7841-8058 http://dx.doi.org/10.1038/s41467-017-00574-9 Nature Communications Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ application/pdf Nature Publishing Group Nature |
| spellingShingle | Wang, Shitong Quan, Wei Zhu, Zhi Yang, Yong Liu, Qi Ren, Yang Zhang, Xiaoyi Xu, Rui Hong, Ye Zhang, Zhongtai Amine, Khalil Tang, Zilong Lu, Jun Li, Ju Lithium titanate hydrates with superfast and stable cycling in lithium ion batteries |
| title | Lithium titanate hydrates with superfast and stable cycling in lithium ion batteries |
| title_full | Lithium titanate hydrates with superfast and stable cycling in lithium ion batteries |
| title_fullStr | Lithium titanate hydrates with superfast and stable cycling in lithium ion batteries |
| title_full_unstemmed | Lithium titanate hydrates with superfast and stable cycling in lithium ion batteries |
| title_short | Lithium titanate hydrates with superfast and stable cycling in lithium ion batteries |
| title_sort | lithium titanate hydrates with superfast and stable cycling in lithium ion batteries |
| url | http://hdl.handle.net/1721.1/112716 https://orcid.org/0000-0001-7022-5561 https://orcid.org/0000-0002-7841-8058 |
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