A Sponge-Driven Elastic Interface for Lithium Metal Anodes
The lithium (Li) metal is one promising anode for next generation high-energy-density batteries, but the large stress fluctuation and the nonuniform Li deposition upon cycling result in a highly unstable interface of the Li anode. Herein, a simple yet facile engineering of the elastic interface on t...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Association for the Advancement of Science (AAAS)
2019-01-01
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| Series: | Research |
| Online Access: | http://dx.doi.org/10.34133/2019/9129457 |
| _version_ | 1797281036046958592 |
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| author | Han Yu Jian Xie Na Shu Fei Pan Jianglin Ye Xinyuan Wang Hong Yuan Yanwu Zhu |
| author_facet | Han Yu Jian Xie Na Shu Fei Pan Jianglin Ye Xinyuan Wang Hong Yuan Yanwu Zhu |
| author_sort | Han Yu |
| collection | DOAJ |
| description | The lithium (Li) metal is one promising anode for next generation high-energy-density batteries, but the large stress fluctuation and the nonuniform Li deposition upon cycling result in a highly unstable interface of the Li anode. Herein, a simple yet facile engineering of the elastic interface on the Li metal anodes is designed by inserting a melamine sponge between Li and the separator. Driven by the good elasticity of the sponge, the modified Li anode maintains a Coulombic efficiency of 98.8% for 60 cycles and is cyclable at 10 mA cm-2 for 250 cycles, both with a high capacity of 10 mA h cm-2. We demonstrate that the sponge can be used to replace the conventional polypropylene as a porous yet elastic separator, showing superior cycling and rate performance as well. In addition to the efficiency of the elastic interface on the cycling stability, which is further confirmed by an in situ compression-electrochemistry measurement, the porous structure and polar groups of the sponge demonstrate an ability of regulating the transport of Li ions, leading to a uniform deposition of Li and the suppression of Li dendrites in cycling. |
| first_indexed | 2024-03-07T16:50:46Z |
| format | Article |
| id | doaj.art-12cdae8567474892ba0ffa27d5ac2231 |
| institution | Directory Open Access Journal |
| issn | 2639-5274 |
| language | English |
| last_indexed | 2024-03-07T16:50:46Z |
| publishDate | 2019-01-01 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | Article |
| series | Research |
| spelling | doaj.art-12cdae8567474892ba0ffa27d5ac22312024-03-03T05:03:59ZengAmerican Association for the Advancement of Science (AAAS)Research2639-52742019-01-01201910.34133/2019/9129457A Sponge-Driven Elastic Interface for Lithium Metal AnodesHan Yu0Jian Xie1Na Shu2Fei Pan3Jianglin Ye4Xinyuan Wang5Hong Yuan6Yanwu Zhu7Hefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering and CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering and CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering and CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering and CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering and CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering and CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering and CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, ChinaHefei National Research Center for Physical Sciences at the Microscale and Department of Materials Science and Engineering and CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, China; iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230026, ChinaThe lithium (Li) metal is one promising anode for next generation high-energy-density batteries, but the large stress fluctuation and the nonuniform Li deposition upon cycling result in a highly unstable interface of the Li anode. Herein, a simple yet facile engineering of the elastic interface on the Li metal anodes is designed by inserting a melamine sponge between Li and the separator. Driven by the good elasticity of the sponge, the modified Li anode maintains a Coulombic efficiency of 98.8% for 60 cycles and is cyclable at 10 mA cm-2 for 250 cycles, both with a high capacity of 10 mA h cm-2. We demonstrate that the sponge can be used to replace the conventional polypropylene as a porous yet elastic separator, showing superior cycling and rate performance as well. In addition to the efficiency of the elastic interface on the cycling stability, which is further confirmed by an in situ compression-electrochemistry measurement, the porous structure and polar groups of the sponge demonstrate an ability of regulating the transport of Li ions, leading to a uniform deposition of Li and the suppression of Li dendrites in cycling.http://dx.doi.org/10.34133/2019/9129457 |
| spellingShingle | Han Yu Jian Xie Na Shu Fei Pan Jianglin Ye Xinyuan Wang Hong Yuan Yanwu Zhu A Sponge-Driven Elastic Interface for Lithium Metal Anodes Research |
| title | A Sponge-Driven Elastic Interface for Lithium Metal Anodes |
| title_full | A Sponge-Driven Elastic Interface for Lithium Metal Anodes |
| title_fullStr | A Sponge-Driven Elastic Interface for Lithium Metal Anodes |
| title_full_unstemmed | A Sponge-Driven Elastic Interface for Lithium Metal Anodes |
| title_short | A Sponge-Driven Elastic Interface for Lithium Metal Anodes |
| title_sort | sponge driven elastic interface for lithium metal anodes |
| url | http://dx.doi.org/10.34133/2019/9129457 |
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