Surface coating engineering of prelithiation cathode additives for lithium-ion batteries
The active lithium ions loss during the initial charge and discharge process of lithium ion batteries seriously hampers its increasement of energy density. Pre-lithiation, involving the pre-storage of active lithium ions prior to cycling, emerges as a promising and effective strategy to offset this...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-06-01
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| Series: | Electrochemistry Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248124000699 |
| _version_ | 1797217098014916608 |
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| author | Ying Sun Jingjing Zhang Tao Huang Aishui Yu |
| author_facet | Ying Sun Jingjing Zhang Tao Huang Aishui Yu |
| author_sort | Ying Sun |
| collection | DOAJ |
| description | The active lithium ions loss during the initial charge and discharge process of lithium ion batteries seriously hampers its increasement of energy density. Pre-lithiation, involving the pre-storage of active lithium ions prior to cycling, emerges as a promising and effective strategy to offset this loss. Li6CoO4 has been identified as a candidate capable of releasing adequate lithium ions to compensate for such loss. However, its poor air stability renders it susceptible to side reactions in the atmosphere, leading to the formation of residual lithium and consequently affecting its electrochemical performance. In this study, we propose application of a lithium aluminate (LiAlO2) coated onto the surface of lithium cobalt oxide (Li6CoO4) to mitigate the presence of residual lithium. Meanwhile, with decreasing of residual lithium, the rate capability is also enhanced. The research results demonstrate that samples treated with this coating layer exhibit an enhanced energy density in the full cell, indicating the efficacy of this approach in optimizing the electrochemical performance of prelithiation additives. |
| first_indexed | 2024-04-24T11:56:27Z |
| format | Article |
| id | doaj.art-5997bb0535874a5c9a172d4bd7094d59 |
| institution | Directory Open Access Journal |
| issn | 1388-2481 |
| language | English |
| last_indexed | 2024-04-24T11:56:27Z |
| publishDate | 2024-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Electrochemistry Communications |
| spelling | doaj.art-5997bb0535874a5c9a172d4bd7094d592024-04-09T04:12:42ZengElsevierElectrochemistry Communications1388-24812024-06-01163107726Surface coating engineering of prelithiation cathode additives for lithium-ion batteriesYing Sun0Jingjing Zhang1Tao Huang2Aishui Yu3Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200438, ChinaState Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, ChinaLaboratory of Advanced Materials, Fudan University, Shanghai 200438, ChinaDepartment of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200438, China; Laboratory of Advanced Materials, Fudan University, Shanghai 200438, China; Corresponding author.The active lithium ions loss during the initial charge and discharge process of lithium ion batteries seriously hampers its increasement of energy density. Pre-lithiation, involving the pre-storage of active lithium ions prior to cycling, emerges as a promising and effective strategy to offset this loss. Li6CoO4 has been identified as a candidate capable of releasing adequate lithium ions to compensate for such loss. However, its poor air stability renders it susceptible to side reactions in the atmosphere, leading to the formation of residual lithium and consequently affecting its electrochemical performance. In this study, we propose application of a lithium aluminate (LiAlO2) coated onto the surface of lithium cobalt oxide (Li6CoO4) to mitigate the presence of residual lithium. Meanwhile, with decreasing of residual lithium, the rate capability is also enhanced. The research results demonstrate that samples treated with this coating layer exhibit an enhanced energy density in the full cell, indicating the efficacy of this approach in optimizing the electrochemical performance of prelithiation additives.http://www.sciencedirect.com/science/article/pii/S1388248124000699Lithium-ion batteryPre-lithiationActive lithium loss |
| spellingShingle | Ying Sun Jingjing Zhang Tao Huang Aishui Yu Surface coating engineering of prelithiation cathode additives for lithium-ion batteries Electrochemistry Communications Lithium-ion battery Pre-lithiation Active lithium loss |
| title | Surface coating engineering of prelithiation cathode additives for lithium-ion batteries |
| title_full | Surface coating engineering of prelithiation cathode additives for lithium-ion batteries |
| title_fullStr | Surface coating engineering of prelithiation cathode additives for lithium-ion batteries |
| title_full_unstemmed | Surface coating engineering of prelithiation cathode additives for lithium-ion batteries |
| title_short | Surface coating engineering of prelithiation cathode additives for lithium-ion batteries |
| title_sort | surface coating engineering of prelithiation cathode additives for lithium ion batteries |
| topic | Lithium-ion battery Pre-lithiation Active lithium loss |
| url | http://www.sciencedirect.com/science/article/pii/S1388248124000699 |
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