Binder-Free Electrodes and Their Application for Li-Ion Batteries
Abstract Lithium-ion batteries (LIB) as energy supply and storage systems have been widely used in electronics, electric vehicles, and utility grids. However, there is an increasing demand to enhance the energy density of LIB. Therefore, the development of new electrode materials with high energy de...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-05-01
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| Series: | Nanoscale Research Letters |
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| Online Access: | http://link.springer.com/article/10.1186/s11671-020-03325-w |
| _version_ | 1827845618692784128 |
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| author | Yuqiong Kang Changjian Deng Yuqing Chen Xinyi Liu Zheng Liang Tao Li Quan Hu Yun Zhao |
| author_facet | Yuqiong Kang Changjian Deng Yuqing Chen Xinyi Liu Zheng Liang Tao Li Quan Hu Yun Zhao |
| author_sort | Yuqiong Kang |
| collection | DOAJ |
| description | Abstract Lithium-ion batteries (LIB) as energy supply and storage systems have been widely used in electronics, electric vehicles, and utility grids. However, there is an increasing demand to enhance the energy density of LIB. Therefore, the development of new electrode materials with high energy density becomes significant. Although many novel materials have been discovered, issues remain as (1) the weak interaction and interface problem between the binder and the active material (metal oxide, Si, Li, S, etc.), (2) large volume change, (3) low ion/electron conductivity, and (4) self-aggregation of active materials during charge and discharge processes. Currently, the binder-free electrode serves as a promising candidate to address the issues above. Firstly, the interface problem of the binder and active materials can be solved by fixing the active material directly to the conductive substrate. Secondly, the large volume expansion of active materials can be accommodated by the porosity of the binder-free electrode. Thirdly, the ion and electron conductivity can be enhanced by the close contact between the conductive substrate and the active material. Therefore, the binder-free electrode generally exhibits excellent electrochemical performances. The traditional manufacture process contains electrochemically inactive binders and conductive materials, which reduces the specific capacity and energy density of the active materials. When the binder and the conductive material are eliminated, the energy density of the battery can be largely improved. This review presents the preparation, application, and outlook of binder-free electrodes. First, different conductive substrates are introduced, which serve as carriers for the active materials. It is followed by the binder-free electrode fabrication method from the perspectives of chemistry, physics, and electricity. Subsequently, the application of the binder-free electrode in the field of the flexible battery is presented. Finally, the outlook in terms of these processing methods and the applications are provided. |
| first_indexed | 2024-03-12T09:00:30Z |
| format | Article |
| id | doaj.art-613c1095ff2c4e2ca08b4b010d63e1ba |
| institution | Directory Open Access Journal |
| issn | 1556-276X |
| language | English |
| last_indexed | 2024-03-12T09:00:30Z |
| publishDate | 2020-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-613c1095ff2c4e2ca08b4b010d63e1ba2023-09-02T15:42:51ZengSpringerOpenNanoscale Research Letters1556-276X2020-05-0115111910.1186/s11671-020-03325-wBinder-Free Electrodes and Their Application for Li-Ion BatteriesYuqiong Kang0Changjian Deng1Yuqing Chen2Xinyi Liu3Zheng Liang4Tao Li5Quan Hu6Yun Zhao7Shenzhen Key Laboratory on Power Battery Safety Research and Shenzhen Geim Graphene Center, Tsinghua Shenzhen International Graduate SchoolHoffmann Institute of Advanced Materials, Shenzhen PolytechnicShenzhen Key Laboratory on Power Battery Safety Research and Shenzhen Geim Graphene Center, Tsinghua Shenzhen International Graduate SchoolDepartment of Chemistry and Biochemistry, Northern Illinois UniversityDepartment of Materials Science and Engineering, Stanford UniversityDepartment of Chemistry and Biochemistry, Northern Illinois UniversityChangsha Nanoapparatus Co., LtdShenzhen Key Laboratory on Power Battery Safety Research and Shenzhen Geim Graphene Center, Tsinghua Shenzhen International Graduate SchoolAbstract Lithium-ion batteries (LIB) as energy supply and storage systems have been widely used in electronics, electric vehicles, and utility grids. However, there is an increasing demand to enhance the energy density of LIB. Therefore, the development of new electrode materials with high energy density becomes significant. Although many novel materials have been discovered, issues remain as (1) the weak interaction and interface problem between the binder and the active material (metal oxide, Si, Li, S, etc.), (2) large volume change, (3) low ion/electron conductivity, and (4) self-aggregation of active materials during charge and discharge processes. Currently, the binder-free electrode serves as a promising candidate to address the issues above. Firstly, the interface problem of the binder and active materials can be solved by fixing the active material directly to the conductive substrate. Secondly, the large volume expansion of active materials can be accommodated by the porosity of the binder-free electrode. Thirdly, the ion and electron conductivity can be enhanced by the close contact between the conductive substrate and the active material. Therefore, the binder-free electrode generally exhibits excellent electrochemical performances. The traditional manufacture process contains electrochemically inactive binders and conductive materials, which reduces the specific capacity and energy density of the active materials. When the binder and the conductive material are eliminated, the energy density of the battery can be largely improved. This review presents the preparation, application, and outlook of binder-free electrodes. First, different conductive substrates are introduced, which serve as carriers for the active materials. It is followed by the binder-free electrode fabrication method from the perspectives of chemistry, physics, and electricity. Subsequently, the application of the binder-free electrode in the field of the flexible battery is presented. Finally, the outlook in terms of these processing methods and the applications are provided.http://link.springer.com/article/10.1186/s11671-020-03325-wLithium ion batteriesBinder-free electrodeFabrication methodFlexible |
| spellingShingle | Yuqiong Kang Changjian Deng Yuqing Chen Xinyi Liu Zheng Liang Tao Li Quan Hu Yun Zhao Binder-Free Electrodes and Their Application for Li-Ion Batteries Nanoscale Research Letters Lithium ion batteries Binder-free electrode Fabrication method Flexible |
| title | Binder-Free Electrodes and Their Application for Li-Ion Batteries |
| title_full | Binder-Free Electrodes and Their Application for Li-Ion Batteries |
| title_fullStr | Binder-Free Electrodes and Their Application for Li-Ion Batteries |
| title_full_unstemmed | Binder-Free Electrodes and Their Application for Li-Ion Batteries |
| title_short | Binder-Free Electrodes and Their Application for Li-Ion Batteries |
| title_sort | binder free electrodes and their application for li ion batteries |
| topic | Lithium ion batteries Binder-free electrode Fabrication method Flexible |
| url | http://link.springer.com/article/10.1186/s11671-020-03325-w |
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