Anthraquinone derivative as high-performance anode material for sodium-ion batteries using ether-based electrolytes

作     者：Linqin Mu Yaxiang Lu Xiaoyan Wu Yuejun Ding Yong-Sheng Hu Hong Li Liquan Chen Xuejie Huang 

作者机构：Key Laboratory for Renewable EnergyBeijing Key Laboratory for New Energy Materials and DevicesBeijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesSchool of Physical Sciences University of Chinese Academy of Sciences 

出 版 物：《Green Energy & Environment》 (绿色能源与环境（英文版）)

年 卷 期：2018年第3卷第1期

页      面：63-70页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0808[工学-电气工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：supported by funding from the National Key Technologies R&D Program (2016YFB0901500) the NSFC (11234013 and 51421002) the One Hundred Talent Project of the Chinese Academy of Sciences 

主　　题：Anthraquinone C14H6O4Na2-CNT Anode material Ether-based electrolyte Sodium-ion batteries 

摘      要：Organic materials, especially the carbonyl compounds, are promising anode materials for room temperature sodium-ion batteries owing to their high reversible capacity, structural diversity as well as eco-friendly synthesis from bio-mass. Herein, we report a novel anthraquinone derivative, C_(14)H_6 O_4 Na_2 composited with carbon nanotube(C_(14)H_6 O_4 Na_2-CNT), used as an anode material for sodium-ion batteries in etherbased electrolyte. The C_(14)H_6 O_4 Na_2-CNT electrode delivers a reversible capacity of 173 mAh g^(-1) and an ultra-high initial Coulombic efficiency of 98% at the rate of 0.1 C. The capacity retention is 82% after 50 cycles at 0.2 C and a good rate capability is displayed at 2 ***, the average Na insertion voltage of 1.27 V vs. Na^+/Na makes it a unique and safety battery material, which would avoid Na plating and formation of solid electrolyte interface. Our contribution provides new insights for designing developed organic anode materials with high initial Coulombic efficiency and improved safety capability for sodium-ion batteries.