Progress and challenges for replacing n-methyl-2-pyrrolidone / polyvinylidene fluoride slurry formulations in lithium-ion battery cathodes

IF 4.8 2区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Progress in Natural Science: Materials International Pub Date : 2024-02-01 DOI:10.1016/j.pnsc.2024.02.013
Sung Cik Mun , Yeong Hoon Jeon , Jong Ho Won
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Abstract

With electric vehicles, energy storage systems, and portable electronic devices becoming increasingly popular, the demand for lithium-ion batteries has surged considerably. In the lithium-ion battery industry, n-methyl-2-pyrrolidone (NMP) is widely used as the solvent for cathode slurry, and polyvinylidene fluoride (PVDF) is used as the cathode binder. However, because of the harmful effect of NMP on the environment and human health, the use of NMP and PVDF for lithium-ion batteries will be highly regulated in the future. Therefore, developing eco-friendly alternatives is crucial for formulating systems using new solvents and binders. Despite numerous efforts, these alternatives have not been widely adopted across the lithium-ion battery industry. It is due to their limited ability to compete on price or performance to replace the traditional NMP/PVDF slurry formulations. This review investigates developments in the search for new solvents and binders that can be used in cathode slurry compositions. The new systems can potentially decrease energy consumption and manufacturing costs associated with NMP recovery, energy-intensive drying processes, and material expenses. We discuss key factors and technical challenges from earlier studies and compare them with the current, optimized formulations based on NMP and PVDF.

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在锂离子电池正极中替代 n-甲基-2-吡咯烷酮/聚偏二氟乙烯浆料配方的进展与挑战
随着电动汽车、储能系统和便携式电子设备的日益普及,对锂离子电池的需求也大幅增加。在锂离子电池行业,正极浆料的溶剂广泛使用 n-甲基-2-吡咯烷酮(NMP),正极粘合剂则使用聚偏二氟乙烯(PVDF)。然而,由于 NMP 对环境和人类健康有害,未来锂离子电池对 NMP 和 PVDF 的使用将受到严格监管。因此,开发环保型替代品对于使用新型溶剂和粘合剂配制系统至关重要。尽管做出了许多努力,但这些替代品尚未被锂离子电池行业广泛采用。这是因为它们在价格或性能方面的竞争能力有限,无法取代传统的 NMP/PVDF 浆料配方。本综述研究了可用于正极浆料成分的新型溶剂和粘合剂的研发情况。新系统有可能降低与 NMP 回收、能源密集型干燥工艺和材料费用相关的能耗和制造成本。我们将讨论早期研究中的关键因素和技术挑战,并将其与当前基于 NMP 和 PVDF 的优化配方进行比较。
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来源期刊
CiteScore
8.60
自引率
2.10%
发文量
2812
审稿时长
49 days
期刊介绍: Progress in Natural Science: Materials International provides scientists and engineers throughout the world with a central vehicle for the exchange and dissemination of basic theoretical studies and applied research of advanced materials. The emphasis is placed on original research, both analytical and experimental, which is of permanent interest to engineers and scientists, covering all aspects of new materials and technologies, such as, energy and environmental materials; advanced structural materials; advanced transportation materials, functional and electronic materials; nano-scale and amorphous materials; health and biological materials; materials modeling and simulation; materials characterization; and so on. The latest research achievements and innovative papers in basic theoretical studies and applied research of material science will be carefully selected and promptly reported. Thus, the aim of this Journal is to serve the global materials science and technology community with the latest research findings. As a service to readers, an international bibliography of recent publications in advanced materials is published bimonthly.
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