EGaIn coated 3D-Cu foam as a self-healing current collector for lithium ion batteries
Traditional lithium-ion batteries are prone to cracks and perforations in extreme environments, which could cause electrochemical performance degradation or even safety problems. Here, based on the alloying reaction of liquid metal, through the adjustment of alloying temperature and reaction time, a...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-11-01
|
| Series: | Electrochemistry Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1388248121002290 |
| _version_ | 1830275614933778432 |
|---|---|
| author | Xiaoxuan Liu Ziyu Yang Heng Quan Junfeng Li Yong Xiang Fang Wu |
| author_facet | Xiaoxuan Liu Ziyu Yang Heng Quan Junfeng Li Yong Xiang Fang Wu |
| author_sort | Xiaoxuan Liu |
| collection | DOAJ |
| description | Traditional lithium-ion batteries are prone to cracks and perforations in extreme environments, which could cause electrochemical performance degradation or even safety problems. Here, based on the alloying reaction of liquid metal, through the adjustment of alloying temperature and reaction time, a uniform and stable dispersion of eutectic gallium indium liquid metal (EGaIn) on the surface and internal structure of the micro-etched 3D-Cu current collector (EGaIn@3D-Cu) is obtained. Furthermore, the graphite anode prepared with the EGaIn@3D-Cu current collector (the self-healing graphite anode) shows an excellent self-healing performance. Namely, the specific capacities of the self-healing graphite anode before and after scratch damage are 327.4 mA h g−1 and 309.6 mA h g−1, respectively, which is significantly better than that of the graphite anode assembled with 2D-Cu foil current collector. Therefore, the EGaIn@3D-Cu current collector prepared by a simple manufacturing process could effectively realizes the self-healing function, prevent the capacity degradation and improve the stability of the battery. |
| first_indexed | 2024-12-19T00:28:54Z |
| format | Article |
| id | doaj.art-4ff49a3c56ba44638406a14f9fc50f91 |
| institution | Directory Open Access Journal |
| issn | 1388-2481 |
| language | English |
| last_indexed | 2024-12-19T00:28:54Z |
| publishDate | 2021-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Electrochemistry Communications |
| spelling | doaj.art-4ff49a3c56ba44638406a14f9fc50f912022-12-21T20:45:10ZengElsevierElectrochemistry Communications1388-24812021-11-01132107145EGaIn coated 3D-Cu foam as a self-healing current collector for lithium ion batteriesXiaoxuan Liu0Ziyu Yang1Heng Quan2Junfeng Li3Yong Xiang4Fang Wu5University of Electronic Science and Technology of China, School of Materials and Energy, Chengdu, Sichuan 611731, PR ChinaUniversity of Electronic Science and Technology of China, School of Materials and Energy, Chengdu, Sichuan 611731, PR ChinaUniversity of Electronic Science and Technology of China, School of Materials and Energy, Chengdu, Sichuan 611731, PR ChinaUniversity of Electronic Science and Technology of China, School of Materials and Energy, Chengdu, Sichuan 611731, PR ChinaUniversity of Electronic Science and Technology of China, School of Materials and Energy, Chengdu, Sichuan 611731, PR ChinaCorresponding author.; University of Electronic Science and Technology of China, School of Materials and Energy, Chengdu, Sichuan 611731, PR ChinaTraditional lithium-ion batteries are prone to cracks and perforations in extreme environments, which could cause electrochemical performance degradation or even safety problems. Here, based on the alloying reaction of liquid metal, through the adjustment of alloying temperature and reaction time, a uniform and stable dispersion of eutectic gallium indium liquid metal (EGaIn) on the surface and internal structure of the micro-etched 3D-Cu current collector (EGaIn@3D-Cu) is obtained. Furthermore, the graphite anode prepared with the EGaIn@3D-Cu current collector (the self-healing graphite anode) shows an excellent self-healing performance. Namely, the specific capacities of the self-healing graphite anode before and after scratch damage are 327.4 mA h g−1 and 309.6 mA h g−1, respectively, which is significantly better than that of the graphite anode assembled with 2D-Cu foil current collector. Therefore, the EGaIn@3D-Cu current collector prepared by a simple manufacturing process could effectively realizes the self-healing function, prevent the capacity degradation and improve the stability of the battery.http://www.sciencedirect.com/science/article/pii/S1388248121002290Self-healingEGaInCurrent collector3D-Cu foamGraphite |
| spellingShingle | Xiaoxuan Liu Ziyu Yang Heng Quan Junfeng Li Yong Xiang Fang Wu EGaIn coated 3D-Cu foam as a self-healing current collector for lithium ion batteries Electrochemistry Communications Self-healing EGaIn Current collector 3D-Cu foam Graphite |
| title | EGaIn coated 3D-Cu foam as a self-healing current collector for lithium ion batteries |
| title_full | EGaIn coated 3D-Cu foam as a self-healing current collector for lithium ion batteries |
| title_fullStr | EGaIn coated 3D-Cu foam as a self-healing current collector for lithium ion batteries |
| title_full_unstemmed | EGaIn coated 3D-Cu foam as a self-healing current collector for lithium ion batteries |
| title_short | EGaIn coated 3D-Cu foam as a self-healing current collector for lithium ion batteries |
| title_sort | egain coated 3d cu foam as a self healing current collector for lithium ion batteries |
| topic | Self-healing EGaIn Current collector 3D-Cu foam Graphite |
| url | http://www.sciencedirect.com/science/article/pii/S1388248121002290 |
| work_keys_str_mv | AT xiaoxuanliu egaincoated3dcufoamasaselfhealingcurrentcollectorforlithiumionbatteries AT ziyuyang egaincoated3dcufoamasaselfhealingcurrentcollectorforlithiumionbatteries AT hengquan egaincoated3dcufoamasaselfhealingcurrentcollectorforlithiumionbatteries AT junfengli egaincoated3dcufoamasaselfhealingcurrentcollectorforlithiumionbatteries AT yongxiang egaincoated3dcufoamasaselfhealingcurrentcollectorforlithiumionbatteries AT fangwu egaincoated3dcufoamasaselfhealingcurrentcollectorforlithiumionbatteries |