Progress in solvent-free dry-film technology for batteries and supercapacitors
Progress in solvent-free dry-film technology for batteries and supercapacitors
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DOI：
10.1016/j.mattod.2022.04.008
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发表时间：
2022-05
期刊：
影响因子：
24.2
通讯作者：
Yongxing Li;Yujing Wu;Zhixuan Wang;Jieru Xu;Tenghuan Ma;Liquan Chen;Hong Li;Fan Wu
中科院分区：
文献类型：
--
作者：
Yongxing Li;Yujing Wu;Zhixuan Wang;Jieru Xu;Tenghuan Ma;Liquan Chen;Hong Li;Fan Wu
无溶剂干膜技术由于能够避免有毒有机溶剂的污染/浪费，以及在提高能量密度、改善电化学性能和电极-电解液界面兼容性等方面的优势，受到了广泛的关注。然而，对这一领域的研究进展和技术发展的总结仍然缺乏。为填补这一空白，本文对无溶剂干膜技术的技术优势、发展过程、主要机理和应用领域进行了全面的综述。首先介绍了无溶剂干膜技术的发展历史，然后详细讨论了不同类型的干膜制备方法。此外，由于粉末喷雾和粘结剂原纤化具有低成本的规模化能力，因此强调了其关键方法，并对相关的制备工艺进行了详细的阐述，包括原理、步骤和参数。对上述两种方法的行业专利和中科院研究论文进行了全面的分析和总结，其技术优势适用于全固态电池(ASSB)。在此基础上，展望了无溶剂型干膜技术的发展前景。
Solvent-free dry-film technology has attracted wide attention due to its ability to avoid pollution/waste caused by poisonous organic solvents, as well as its advantage for energy density enhancement, electrochemical performance improvement and electrode–electrolyte interface compatibility. However, a summary of the research advancements and technology development in this field is still missing. To fill this gap, a complete overview of the technical advantages, development process, principal mechanisms and application fields of solvent-free dry film technology is presented here. Firstly, the history of solvent-free dry-film technology is introduced, followed by detailed discussions on different types of dry-film making methods. Moreover, powder spray and binder fibrillation are emphasized as key methods due to their low-cost mass-production capability, with an elaboration on the associated preparation process including principle, procedure, and parameters. Both patents from the industry and research papers from the academy of the aforementioned two methods are analyzed/summarized for complete information, whose technical advantages are found to be suitable for all solid-state batteries (ASSBs). Based on the insights obtained above, perspectives are given for promoting future development of solvent-free dry-film technology.