储能科学与技术 ›› 2018, Vol. 7 ›› Issue (4): 687-691.doi: 10.12028/j.issn.2095-4239.2018.0065

• 研究及进展 • 上一篇    下一篇

3,4,9,10-苝四甲酸四钠盐在锂离子电池中的应用

刘瑶俊, 方淳, 黄云辉   

  1. 华中科技大学材料科学与工程学院, 湖北 武汉 430074
  • 收稿日期:2018-04-20 修回日期:2018-05-28 出版日期:2018-07-01 发布日期:2018-07-01
  • 通讯作者: 方淳,讲师,主要研究方向为锂/钠离子电池,E-mail:fangchun@hust.edu.cn
  • 作者简介:刘瑶俊(1992-),女,硕士研究生,主要研究方向为锂/钠离子电池,E-mail:yaojunliuxx@163.com
  • 基金资助:
    国家自然科学基金项目(51702111,51632001),长江学者与大学创新研究团队计划项目(IRT14R18)。

Application of tetrasodium salt of 3, 4, 9, 10-perylenetetracarboxylic acid for Li ion batteries

LIU Yaojun, FANG Chun, HUANG Yunhui   

  1. School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
  • Received:2018-04-20 Revised:2018-05-28 Online:2018-07-01 Published:2018-07-01

摘要: 共轭羰基化合物由于其良好的离子和电子传输性能以及高度的可逆性,成为研究最为广泛的一类有机电极材料。采用具有3,4,9,10-苝四甲酸二酐为前驱体与氢氧化钠反应制备了3,4,9,10-苝四甲酸四钠盐(Na4C24H8O8,Na-PTCA),作为锂离子电池的负极材料。Na-PTCA在50 mA/g的电流密度电压区间0.01~2 V条件下,循环100圈后还能保持468 mA·h/g的容量,表现出良好的循环稳定性。同时,其羧基部分在约1.10/1.38 V的电压平台表现高度的循环可逆性,在循环100圈后容量保持为148 mA·h/g。这些结果对扩展新型高比容锂离子电池负极材料提供了一种有效的设计思路。

关键词: 共轭羰基, 金属有机材料, 负极, 锂离子电池

Abstract: Conjugated carbonyl compounds have become the one of the most widely studied class of organic electrode materials due to its good ion and electron transport properties and high reversibility. The sodium salt of 3, 4, 9, 10-perylenetetracarboxylic acid (Na4C24H8O8, Na-PTCA) was synthesized by the reaction between 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) precursor with NaOH solution. Na-PTCA exhibits a stable cycling performance, which discharge specific capacity remains 468 mA·h·g-1 after 100 cycles at a current density of 50 mA·g-1 in the voltage range of 0.01~2 V vs. Li+/Li. Meanwhile, the redox sites of carboxylate groups (C=O) showing discharge/charge plateaus at about 1.10/1.38 V deliver a high cyclic reversibility and reveal a reversible capacity of 148 mA·h·g-1 after 100 cycles. These results provide a design strategy for expanding the families of anode electrode materials for lithium ion batteries.

Key words: conjugated carbonyl groups, metal-organic materials, anode, lithium ion batteries

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