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Revisiting the electrode manufacturing: A look into electrode rheology and active material microenvironment

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摘要 The microstructures on electrode level are crucial for battery performance, but the ambiguous understanding of both electrode microstructures and their structuring process causes critical challenges in controlling and evaluating the electrode quality during fabrication. In this review, analogous to the cell microenvironment well-known in biology, we introduce the concept of ‘‘active material microenvironment”(ME@AM)that is built by the ion/electron transport structures surrounding the AMs, for better understanding the significance of the electrode microstructures. Further, the scientific significance of electrode processing for electrode quality control is highlighted by its strong links to the structuring and quality control of ME@AM. Meanwhile, the roles of electrode rheology in both electrode structuring and structural characterizations involved in the entire electrode manufacturing process(i.e., slurry preparation, coating/printing/extrusion, drying and calendering) are specifically detailed. The advantages of electrode rheology testing on in-situ characterizations of the electrode qualities/structures are emphasized. This review provides a glimpse of the electrode rheology engaged in electrode manufacturing process and new insights into the understanding and effective regulation of electrode microstructures for future high-performance batteries.
出处 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2022年第9期41-55,I0002,共16页 能源化学(英文版)
基金 the financial support from the National Natural Science Foundation of China and the start-up project the Sichuan-University-Dazhou Joint project(00309053A2037) the Fundamental Research Funds for the Central Universities partially sponsored by the Double First-Class Construction Funds of Sichuan University。
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