Cross-linked β-CD-CMC as an effective aqueous binder for silicon-based anodes in rechargeable lithium-ion batteries |
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| Authors: | Hao-wen Jiang Yan Yang Yi-ming Nie Zhi-fang Su Yun-fei Long Yan-xuan Wen Jing Su |
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| Affiliation: | School of Chemistry and Chemical Engineering, Guangxi University, Nanning Guangxi China.; Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, Guangxi University, Nanning China |
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| Abstract: | As a non-active material component, the binder can effectively maintain the integrity of battery electrodes. In this work, based on the inspired structure of fishing nets, a three-dimensional mesh adhesive using widely sourced raw materials CMC and β-CD was designed. These cross-linked cyclodextrins have the advantage of dispersing the stress at the anchor point and moderating the significant volume changes of the Si anode. The Si/β-CD-CMC electrode maintains a reversible capacity of 1702 mA h g−1 even after 200 cycles at a high current of 0.5C. This work represents a significant step forward in Si anode binders and enables the cross-linked cyclodextrins to have potential applications in energy storage systems.A three-dimensional mesh β-CD-CMC adhesive was designed based on the structure of fishing nets. This cross-linked binder has the ability to disperse the stress at the anchor point and moderate the significant volume changes of the Si anode. |
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