A Copper-Based Polycarbonyl Coordination Polymer as a Cathode for Li Ion Batteries

Abstract

It is of great significance for the sustainable development of society to search for novel coordination polymer-based electrode materials of lithium ion batteries. Herein, a two-dimensional coordination polymer, )-tetraone; DMF = dimethylformamide), was synthesized and first used as a cathode material of lithium ion batteries. The Cu-CP electrode displayed a better cycling stability and the specific capacity of 40.3 mA h g −1 at 50 mA g −1 after 50 cycles along with a Coulombic efficiency of 96.7%. The electrochemical study for the Cu-CP electrode reveals that both Cu(II) ions and 4-DTBPT ligands may be involved in the electrochemical reaction during charge and discharge. Our work demonstrates again that it is a feasible way to utilize the interaction of metal ions and organic ligands with redox activity for constructing coordination polymers acting as the cathode materials for lithium ion batteries.

Highly Stable Metal–Organic Framework with Redox‐Active Naphthalene Diimide Core as Cathode Material for Aqueous Zinc‐Ion Batteries

“…The ligand Ndi-trz was prepared according to literature method (Scheme S1). [29] A mixture of 4-amino-4H-1,2,4-triazole (4-AT) (3.78 g, 45 mmol) and 1,4,5,8-naphthalenetetracarboxylic dianhydride (4.02 g, 15 mmol) was dispersed in 250 mL dry N,N'-dimethylformamide. After being stirred for 0.5 h, the mixture was heated to reflux under N 2 atmosphere overnight.…”

Building a high-performance organic cathode material containing electron-withdrawing groups for lithium-ion batteries

“…[42] The phase angle after the first cycle and 50 cycles are all larger than 45°, indicating the rapid diffusion of lithium ions in the electrode. [43][44][45][46][47] These results show that this material has potential application value as the electrode material for LIBs. The electrochemical reaction mechanism of the TNHATN electrode was explored by XRD patterns and FT-IR spectra.…”

A three-dimensional Mn-based MOF as a high-performance supercapacitor electrode

“…2b. For Mn-BGPD, a strong peak at 3435 cm −1 can be observed, attributed to the stretching vibration peak of ν(OH) from coordinated water molecules; the peak at 1635 cm −1 is ascribed to the stretching vibration of CvO from BGPD 2− anions; 16,62 the peaks at 1496 and 1356 cm −1 belong to the asymmetric and the symmetric stretching vibration peaks of ν as (OCO) and stretching of ν s (OCO) that originated from BGPD 2− anions, respectively. The wavenumber difference value (Δν) of ν as (OCO) and ν s (OCO) is 140, revealing the coordination mode of the BGPD 2− anion is the bridging mode, 18,61 the peak at around 601 cm −1 can The TG curve of Mn-BGPD is shown in Fig.…”