文献类型：期刊文献

英文题名：Synergetic promotion on anion storage performance of tetraphenylbiphenyldiamine/spongy porous carbon in dual ion batteries

作者：Wang, Gaolei[1];Zhu, Weijie[1];Liang, Jinglong[1];Zhou, Shiqi[1];Min, Yuxin[1];Yang, Chaofan[1];Huang, Junjie[1]

机构：[1]Shaoxing Univ, Coll Chem & Chem Engn, Shaoxing 312000, Peoples R China

年份：2025

卷号：334

外文期刊名：MATERIALS CHEMISTRY AND PHYSICS

收录：SCI-EXPANDED(收录号：WOS:001423949800001)、、EI(收录号：20250617828469)、Scopus(收录号：2-s2.0-85216927276)、WOS

基金：This work is supported by the National Natural Science Foundations of China (No. 21875142) and the Natural Science Foundation of Zhe-jiang Province (LQ23E020003) .

语种：英文

外文关键词：Tetraphenylbiphenyldiamine; Spongy porous carbon; Dual ion batteries; Synergetic effect

外文摘要：Tetraphenylbiphenyldiamine (TPB) with redox amino groups is very promising as cathode to store PF6- in dual ion batteries. However, TPB experiences huge volume variation during the insertion/extraction of large-sized PF6- , which is easy to worsen the structure of TPB particles and electrode, resulting in the inferior cycling stability and the limited anion storage capacity. In this study, spongy porous carbon (SPC) has been applied to absorb TPB solution, and after the evaporation of solvent TPB with small size can deposite in the spongy structure of carbon, forming TPB/SPC composite. Small sized TPB possess small absolute volume change after the insertion of PF6- and the enhanced PF6- diffusing and electron transferring kinetics. And, SPC not only helps to stabilize the structure of TPB, but also contributes to the superior electron conducting kinetics and capacitance, endowing TPB/SPC composite an excellent PF6- storage performance. TPB/SPC composite delivers the PF6- storage capacities of 102.7 mAh g-1 at 50 mA g-1 and 75.9 mAh g-1 at 1000 mA g-1 as well as almost no capacity loss for 100 cycles at 50 mA g-1. The reason should be the synergetic effect between TPB and SPC.