title: Extended π-conjugated system for fast-charge and -discharge sodium-ion batteries.
abstract: Organic sodium-ion batteries (SIBs) are potential alternatives of current commercial inorganic lithium-ion batteries for portable electronics (especially wearable electronics) because of their low cost and flexibility, making them possible to meet the future flexible and large-scale requirements. However, only a few organic SIBs have been reported so far, and most of them either were tested in a very slow rate or suffered significant performance degradation when cycled under high rate. Here, we are focusing on the molecular design for improving the battery performance and addressing the current challenge of fast-charge and -discharge. Through reasonable molecular design strategy, we demonstrate that the extension of the π-conjugated system is an efficient way to improve the high rate performance, leading to much enhanced capacity and cyclability with full recovery even after cycled under current density as high as 10 A g(-1).
authors: Institute for Physics and IMN MacroNano and ‡Institute for Chemistry and Bio-Technique and IMN MacroNano, Technical University of Ilmenau , Ilmenau 98693, Germany.
authors: Chengliang
authors: C
authors: Wang
authors: Yang
authors: Y
authors: Xu
authors: Yaoguo
authors: Y
authors: Fang
authors: Min
authors: M
authors: Zhou
authors: Liying
authors: L
authors: Liang
authors: Sukhdeep
authors: S
authors: Singh
authors: Huaping
authors: H
authors: Zhao
authors: Andreas
authors: A
authors: Schober
authors: Yong
authors: Y
authors: Lei