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A kind of polymer based on phenazine trimer and its preparation method and battery application

A technology of phenazine trimer and polymer, which is applied in battery electrodes, circuits, electrical components, etc., can solve the problems of low actual capacity and dependence on scarce natural resources, and achieve reduced production costs, abundant material sources, and improved stability Effect

Active Publication Date: 2022-03-08
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional metal-ion batteries often use inorganic electrode materials such as transition metal oxides and graphite, and the actual capacity is often low or depends on scarce natural resources.

Method used

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  • A kind of polymer based on phenazine trimer and its preparation method and battery application
  • A kind of polymer based on phenazine trimer and its preparation method and battery application
  • A kind of polymer based on phenazine trimer and its preparation method and battery application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Example 1: Synthesis of p-TPZB1

[0046] 1.TPZB (X=Z=H, Y=CH=CH 2 )Synthesis

[0047]

[0048] 5,10-dihydrophenazine (5.47g, 30mmol), 1,3,5-tribromobenzene (3.15g, 10mmol), 4-bromostyrene (5.49g, 30mmol), palladium acetate (202mg, 1.8mmol ), xPhos (1.72g, 3.6mmol), sodium tert-butoxide (8.65g, 90mmol) and toluene (30ml) were put into the reaction flask, and oxygen was removed by freezing-vacuum-thawing cycle 3 times. The mixture was condensed under reflux at 100° C. and stirred for 12 hours. After the obtained crude product was cooled to room temperature, it was purified by column chromatography with neutral alumina (DCM:PE=1:2 to 1:1), and then recrystallized (mixture of DCM and MeOH). 1 H NMR (400MHz, C6D6, ppm) δ = 7.28 (d, J = 8.4Hz, 6H), 7.18 (d, J = 3.3Hz, 9H), 6.56 (dd, J = 17.6, 10.9Hz, 3H), 6.38 (dtd, J=23.1,7.5,1.4Hz,12H),6.15(dd,J=7.7,1.4Hz,6H),5.93(dd,J=7.8,1.4Hz,6H),5.61(d,J=17.5 Hz,3H),5.14(d,J=11.1Hz,3H).13C NMR(101MHz,C6D6,ppm)δ=146.37,139.71,137...

Embodiment 2

[0051] Embodiment 2: the synthesis of TPZB-6COOLi

[0052]

[0053] 1. Synthesis of TPZB-6COOMe

[0054] 5,10-dihydrophenazine (2.73g, 15mmol), 1,3,5-tribromobenzene (1.57g, 5mmol), dimethyl 5-bromo-isophthalate (4.1g, 15mmol), acetic acid Palladium (100mg, 0.9mmol), xPhos (860mg, 1.8mmol), cesium carbonate (14.7g, 90mmol) and . Toluene (30ml) was put into the reaction bottle, and the oxygen was removed by freezing-vacuum-thawing cycle 3 times. The mixture was refluxed and condensed at 130°C for 12 hours with stirring. The obtained crude product was quenched with methanol, cooled to room temperature, purified by column chromatography with neutral alumina (PE:EA=3:1), and recrystallized (mixture of DCM and MeOH). 1 H NMR (400MHz, C6D6, ppm) δ = 9.05 (t, J = 1.6Hz, 1H), 8.42 (d, J = 1.6Hz, 2H), 7.32 (s, 1H), 6.43 (td, J = 7.8, 1.3Hz, 3H), 6.31(td, J=7.8, 1.3Hz, 3H), 6.21(dd, J=7.9, 1.2Hz, 3H), 5.81(dd, J=7.9, 1.2Hz, 3H), 3.41( s,6H).

[0055] 2. Synthesis of TPZB-6COOLi...

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Abstract

The invention discloses a polymer based on phenazine trimer and its preparation method and battery application, including: a small molecule or phenazine trimer monomer based on phenazine trimer (TPZB), The present invention aims to use p-conjugated nitrogen heterocyclic aromatic polymers as electrode active materials for organic energy storage batteries, utilize the nitrogen heterocyclic conjugated delocalization effect to stabilize the molecules and intermediate states of the electrode active materials, and use a more flexible The group is polymerized as a bridge to further reduce the solubility, and avoid the formation of a strong π-π stacking of the completely rigid polymer chain, which is conducive to the formation of ion channels for the polymer, thereby improving the rate performance of the battery. The way of salt reduces the solubility of small organic molecules in the electrolyte, and introduces a highly stable phenazine matrix to improve the stability of organic molecules and battery stability.

Description

technical field [0001] The invention relates to the field of a highly stable polymer or an organic electrode, in particular to a polymer based on a phenazine trimer, a preparation method thereof and a battery application. Background technique [0002] Energy is the material basis and power source of modern warfare, and the development and utilization of renewable energy such as wind energy and solar energy has become an inevitable trend; the use of lithium-ion battery energy storage can not only solve the problems of intermittent and poor stability of renewable energy power generation, but also has a strong impact on the power grid. Functions such as peak shaving and valley filling are key technologies to solve energy security. In recent years, the continuous development of electronic products and electric vehicles in recent years has increased the demand for batteries, and the technological advantages of lithium-ion, the ever-decreasing price, the flexibility of operation a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12H01M4/62
CPCC08G61/122H01M4/626C08G2261/3241C08G2261/90Y02E60/10
Inventor 赵宇戴高乐叶婧黄乐伟
Owner SUZHOU UNIV
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