文章基本信息

标题：Water-Based Electrode Manufacturing and Direct Recycling of Lithium-Ion Battery Electrodes—A Green and Sustainable Manufacturing System
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作者：Jianlin Li ; Yingqi Lu ; Tairan Yang 等
期刊名称：iScience
印刷版ISSN：2589-0042
出版年度：2020
卷号：23
期号：5
页码：1-13
DOI：10.1016/j.isci.2020.101081
语种：English
出版社：Elsevier
摘要：SummaryIt is critical to develop a low-cost and environmentally friendly system to manufacture and recycle lithium-ion batteries (LIBs) as the demand on LIBs keeps increasing dramatically. Conventional LIB cathodes are manufactured using N-methyl-2-pyrrolidone as the solvent, which is expensive, highly toxic, flammable, and energy intensive to produce and recover. Ideally, a close-loop industrial supply chain should be built, in which the batteries are manufactured, market harvested, and recycled with minimal external toxic solvent through the whole system. This work demonstrates a green and more sustainable manufacturing method for LIBs where no hazardous organic solvent is used during electrode manufacturing and recycling. The electrodes fabricated via water-based processing demonstrate comparable rate performance and cycle life to the ones from conventional solvent-based processing. Utilization of a water-soluble binder enables recovering the cathode compound from spent electrodes using water, which is successfully regenerated to deliver comparable electrochemical performance to the pristine one.Graphical AbstractDisplay OmittedHighlights•Aqueous processed NCM523 cathodes show performance comparable with the NMP processed one•The spent NCM523 compound was separated from other cathode components in water•The spent NCM523 was successfully relithiated, restored and showed performance comparable with the pristine•This provides a potential path toward green and sustainable battery manufacturingElectrochemical Energy Storage; Energy Sustainability; Manufacturing