文献类型：期刊文献

英文题名：Homology and isomerism effect of aromatic imides as organic anode materials of lithium-ion batteries

作者：Liu, Huan[1];Wang, Yaru[2];Liu, Huijun[1];Sun, Yuhua[1];Guan, Shiyou[1,2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, 130 Mei Long Rd, Shanghai 200237, Peoples R China;[2]Shanghai Univ, Inst Sustainable Energy, 99 Shangda Rd, Shanghai 200444, Peoples R China

年份：2019

卷号：848

外文期刊名：JOURNAL OF ELECTROANALYTICAL CHEMISTRY

收录：;EI(收录号：20193007239826);WOS:【SCI-EXPANDED(收录号:WOS:000504505400045)】；

语种：英文

外文关键词：Isomerism effect; Homology; Aromatic imides; Anode materials; Lithium-ion batteries

摘要：Organic materials have been promising materials for "greener and sustainable" lithium-ion batteries due to lightweight, low cost, flexibility, alternative molecular engineering. Six kinds of aromatic imides with different aromatic and aliphatic diamines based on 3,3',4,4'-benzophenonetetracarboxylic dianhydride (BTDA) were designed, synthesized and studied as anode materials in rechargeable lithium-ion batteries in this work. Compared with ortho-substituted and meta-substituted phenylenediamine, aromatic imide synthesized by p-phenylenediamine shows excellent electrochemical performance on account of its well-organized structure, which possesses 558 mA h g(-1) of discharge capacity after 50 cycles at the current density of 25 mA g(-1). Besides, imides with shorter alkyl chain would help improve the proportion of electrochemical active conjugated carbonyl compounds, leading to higher capacity. Thus, imide-based electrode materials can be designed efficiently by symmetrical and straight chain structure and less inactive part to gain optimum molecular structure, making it a promising alternative anode material for rechargeable lithium-ion batteries. (C) 2019 Elsevier B.V. All rights reserved.