引用本文:
张敬华, 张永生, 郑绵平, 其鲁, 冯波, 李立. 聚3,4-乙撑二氧噻吩对锂离子二次电池正极材料2,5-二巯基-1,3,4-噻二唑的电化学改性[J]. 物理化学学报,
2007, 23(0): 51-55.
doi:
10.3866/PKU.WHXB2007Supp12
Citation: ZHANG Jing-Hua, ZHANG Yong-Sheng, ZHENG Mian-Ping, QI Lu, FENG Bo LI Li, 2,5-Dimercapto-1,3,4-Thiadiazole for Lithium Batteries by Poly(3,4-ethylenedioxythiophene)[J]. Acta Physico-Chimica Sinica, 2007, 23(0): 51-55. doi: 10.3866/PKU.WHXB2007Supp12
Citation: ZHANG Jing-Hua, ZHANG Yong-Sheng, ZHENG Mian-Ping, QI Lu, FENG Bo LI Li, 2,5-Dimercapto-1,3,4-Thiadiazole for Lithium Batteries by Poly(3,4-ethylenedioxythiophene)[J]. Acta Physico-Chimica Sinica, 2007, 23(0): 51-55. doi: 10.3866/PKU.WHXB2007Supp12
聚3,4-乙撑二氧噻吩对锂离子二次电池正极材料2,5-二巯基-1,3,4-噻二唑的电化学改性
摘要:
电聚合物聚3,4-乙撑二氧噻吩(PEDOT)对锂离子电池正极材料2,5-二巯基-1,3,4-噻二唑(DMcT)的氧化还原反应具有很好的电催化性能. 通过掺杂一定量的电催化剂PEDOT, DMcT的电化学性能得到了很大改善. 在包覆有PEDOT的Pt电极上, DMcT的循环伏安实验显示出良好的电化学性能, 表明DMcT的氧化还原反应动力学性能得到了提高. 充放电实验结果表明, 与DMcT膜电极相比, DMcT/PEDOT复合物膜电极显示出了较高的放电容量和较慢的容量衰减.
English
2,5-Dimercapto-1,3,4-Thiadiazole for Lithium Batteries by Poly(3,4-ethylenedioxythiophene)
Abstract:
High electrocatalytic activity of an electropolymerized film of poly (3,4-ethylenedioxythiophene) (PEDOT) was reported toward the redox reaction of 2,5-dimercapto-1,3,4-thiadiazole (DMcT) as a promising cathode material for the lithium ion battery. Electrochemical performance of DMcT was improved by adding an appropriate quantity of PEDOT. Cyclic voltammetry showed improved electrochemical performance of DMcT on PEDOT-coated Pt electrode, indicating accelerated redox kinetics. Moreover, charge-discharge tests exhibited higher discharge capacity and slower capacity fading of the PEDOT-doped DMcT composite cathode compared with pure DMcT.
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