Development of ionically conducting inorganic binders for solid-state batteries

粘结剂通过连接活性材料和导电添加剂，促进电极材料在所需衬底上的涂层，从而使电池的制造变得灵活，从而发挥着至关重要的作用。此外，它们有助于缓冲电极材料中的体积变化，并增强其循环稳定性。尽管聚偏氟乙烯基粘结剂成本高、不环保、能源效率低，但仍被广泛使用。最近，离子导电无机粘结剂(ICIB)被引入以取代聚偏氟乙烯基粘结剂。这些ICIB不仅离子导电，而且水可处理、化学兼容、环保、低成本、热稳定(&gt；1000C)、零排放，而且重要的是，使用安全。本研究的重点是进一步开发这些ICIB，特别是它们的离子导电性，验证它们在固态电池中的性能，并将开发新的ICIB。

Binders play a vital role by interconnecting active materials and conductive additives and facilitating the coating of electrode materials on the desired substrates, thus enabling the flexible fabrication of batteries. Further, they aid in buffering volume changes in electrode materials and enhance their cycling stability. Polyvinylidene fluoride-based binders are employed widely, despite their high cost, non-eco-friendliness, and energy inefficiency. Recently ionically conducting inorganic binders (ICIBs) were introduced to replace polyvinylidene fluoride-based binders. These ICIBs are not only ionically conducting but also water processable, chemically compatible, eco-friendly, low-cost, thermally stable (>1000C), emission-free, and, importantly, safe to use. This study focuses on the further development of these ICIBs, particularly their ionic conductivity, validating their performance in solid-state batteries, and new ICIBs will be developed.