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Updated: Jul 31, 2025
Construction and Testing of Coin Cells of Lithium Ion Batteries
Published on: August 2, 2012
A one-dimensional cobalt-based coordination polymer as a cathode material of lithium-ion batteries
Daozhen Shen1, Yanyong Sha1, Chen Chen2
1Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis Green Manufacturing Collaborative Innovation Center and School of Petrochemical Engineering, Changzhou University, 1 Gehu Road, Changzhou, Jiangsu 213164, China. liuqi62@163.com.
Abstract:
For obtaining high-performance lithium-ion batteries, it is important to develop new cathode materials with high capacity. Herein, a one-dimensional coordination polymer [Co(4-DTBPT) (DMF)2(H2O)2] (4-DTBPT) (C10H4O8) (Co-DTBPT) (4-DTBPT = 2,7-di(4H-1,2,4-triazol-4yl)benzo[lmn][3,8] phenanthroline-1,3,6,8-(2H,7H)-tetraone; DMF = dimethylformamide) was synthesized and its electrochemical performance as the cathode material of lithium-ion batteries was first investigated. The Co-DTBPT electrode showed better cycling stability and a specific capacity of 55 mA h g-1 at 50 mA g-1 after 50 cycles, and the coulombic efficiency was close to 100%. The capacity contribution of the Co-DTBPT electrode may be ascribed to the redox reaction of the Co(II) ion and the 4-DTBPT ligand in the process of charge and discharge. Our work proves once again that using one-dimensional coordination polymers as cathode materials for lithium-ion batteries is a feasible way.
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