Institute for Frontier Materials, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC, 3216, Australia.
Department of Materials and Life Sciences, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo, 102-8554, Japan.
ChemSusChem. 2017 Aug 10;10(15):3135-3145. doi: 10.1002/cssc.201700691. Epub 2017 Jul 21.
Organic ionic plastic crystals (OIPCs) are a class of solid-state electrolytes with good thermal stability, non-flammability, non-volatility, and good electrochemical stability. When prepared in a composite with electrospun polyvinylidene fluoride (PVdF) nanofibers, a 1:1 mixture of the OIPC N-ethyl-N-methylpyrrolidinium bis(fluorosulfonyl)imide ([C mpyr][FSI]) and lithium bis(fluorosulfonyl)imide (LiFSI) produced a free-standing, robust solid-state electrolyte. These high-concentration Li-containing electrolyte membranes had a transference number of 0.37(±0.02) and supported stable lithium symmetric-cell cycling at a current density of 0.13 mA cm . The effect of incorporating PVdF in the Li-containing plastic crystal was investigated for different ratios of PVdF and [Li][FSI]/[C mpyr][FSI]. In addition, Li|LiNi Co Mn O cells were prepared and cycled at ambient temperature and displayed a good rate performance and stability.
有机离子塑性晶体 (OIPC) 是一类具有良好热稳定性、不可燃性、不挥发性和良好电化学稳定性的固态电解质。当与电纺聚偏二氟乙烯 (PVdF) 纳米纤维复合制备时，OIPC N-乙基-N-甲基吡咯烷双（氟磺酰基）亚胺 ([Cmpyr][FSI]) 和双（氟磺酰基）亚胺锂 (LiFSI) 的 1:1 混合物产生了一种独立的、坚固的固态电解质。这些高浓度含锂电解质膜的迁移数为 0.37(±0.02)，并在 0.13 mA cm 的电流密度下支持稳定的锂对称电池循环。研究了不同比例的 PVdF 和 [Li][FSI]/[Cmpyr][FSI] 对含锂塑料晶体中 PVdF 的掺入的影响。此外，还制备了 Li|LiNiCoMnO 电池并在环境温度下循环，显示出良好的倍率性能和稳定性。
