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arXiv 2109.04520cond-mat.mtrl-sciphysics.app-ph
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用于锂离子电池的结构化电极增材制造

Structured electrode additive manufacturing for lithium-ion batteries

Soyeon Park, Kaiyue Deng, Baohui Shi, Yuanyuan Shang, Kun, Fu

摘要:

作为高能量密度锂离子电池的策略,已经开发了具有高面积容量的厚电极,但是厚电极在制造上有困难并且在离子传输上有限制。在此,我们报道了一种用于具有对准结构的超厚电极的新制造方法,称为结构电极增材制造或SEAM,其使用剪切流和设计的印刷路径将活性物质对准到电极的整个厚度方向。具有高负载的活性物质、低曲折结构的超厚电极,和良好的结构稳定性,导致快速离子传输和快速电解质注入,提供比浆料浇铸厚电极更高的面积容量。SEAM在设计灵活性和可扩展性方面显示出优势,这允许生产实用的高能量/功率密度结构电极。

英文摘要:

A thick electrode with high areal capacity has been developed as a strategy for high-energy-density lithium-ion batteries, but thick electrodes have difficulties in manufacturing and limitations in ion transport. Here, we reported a new manufacturing approach for ultra-thick electrode with aligned structure, called structure electrode additive manufacturing or SEAM, which aligns active materials to the through-thicknesses direction of electrodes using shear flow and a designed printing path. The ultra-thick electrodes with high loading of active materials, low tortuous structure, and good structure stability resulting from a simple and scalable SEAM lead to rapid ion transport and fast electrolyte infusion, delivering a higher areal capacity than slurry-casted thick electrodes. SEAM shows strengths in design flexibility and scalability, which allows the production of practical high energy/power density structure electrodes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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