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author:

Wu, X. (Wu, X..) [1] | Zhou, W. (Zhou, W..) [2] | Ye, C. (Ye, C..) [3] | Zhang, J. (Zhang, J..) [4] | Liu, Z. (Liu, Z..) [5] | Yang, C. (Yang, C..) [6] | Peng, J. (Peng, J..) [7] | Liu, J. (Liu, J..) [8] | Gao, P. (Gao, P..) [9]

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Abstract:

Organic electrode materials are promising for next-generation energy storage materials due to their environmental friendliness and sustainable renewability. However, problems such as their high solubility in electrolytes and low intrinsic conductivity have always plagued their further application. Polymerization to form conjugated organic polymers can not only inhibit the dissolution of organic electrodes in the electrolyte, but also enhance the intrinsic conductivity of organic molecules. Herein, we synthesized a new conjugated organic polymer (COPs) COP500-CuT2TP (poly [5,10,15,20-tetra(2,2′-bithiophen-5-yl) porphyrinato] copper (II)) by electrochemical polymerization method. Due to the self-exfoliation behavior, the porphyrin cathode exhibited a reversible discharge capacity of 420 mAh g−1, and a high specific energy of 900 Wh Kg−1 with a first coulombic efficiency of 96 % at 100 mA g−1. Excellent cycling stability up to 8000 cycles without capacity loss was achieved even at a high current density of 5 A g−1. This highly conjugated structure promotes COP500-CuT2TP combined high energy density, high power density, and good cycling stability, which would open new opportunity for the designable and versatile organic electrodes for electrochemical energy storage. © 2024 Wiley-VCH GmbH.

Keyword:

conjugated organic polymers lithium-ion batteries porphyrin thiophene

Community:

  • [ 1 ] [Wu X.]Key laboratory of Enviromentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China
  • [ 2 ] [Zhou W.]College of Materials Science and Engineering, Hunan Joint International Laboratory of Advanced Materials and Technology of Clean Energy., Hunan University, Changsha, 410082, China
  • [ 3 ] [Ye C.]Key laboratory of Enviromentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China
  • [ 4 ] [Zhang J.]Key laboratory of Enviromentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China
  • [ 5 ] [Liu Z.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Yang C.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 7 ] [Peng J.]School of Mechanical Engineering, Xiangtan University, Xiangtan, 411105, China
  • [ 8 ] [Liu J.]College of Materials Science and Engineering, Hunan Joint International Laboratory of Advanced Materials and Technology of Clean Energy., Hunan University, Changsha, 410082, China
  • [ 9 ] [Gao P.]Key laboratory of Enviromentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, China

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Source :

Angewandte Chemie - International Edition

ISSN: 1433-7851

Year: 2024

Issue: 14

Volume: 63

1 6 . 1 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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