Polymer based on phenazine trimer, preparation method and battery application thereof
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A phenazine trimer, battery application technology, applied in battery electrodes, circuits, electrical components, etc., can solve problems such as dependence on scarce natural resources and low actual capacity
Active Publication Date: 2021-02-02
SUZHOU UNIV
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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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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, a preparation method and battery application thereof, the polymer comprises small molecule or phenazine trimer monomer based on phenazine trimer (TPZB), and the invention aims to provide the idea that p-conjugated nitrogen heterocyclic aromatic polymer is used as an electrode active material of an organic energy storage battery, molecules and an intermediate state of an electrode active material are stabilized by utilizing a nitrogen heterocyclic conjugate delocalization effect, and polymerization is carried out by taking a relatively flexible group as a connecting bridge bond, so that the solubility is further reduced, a completely rigid polymer chain is prevented from forming relatively strong pi-pi accumulation, the polymer isfacilitated to form an ion channel, and the rate capability of a battery is improved; and the solubility of small organic molecules in the electrolyte liquid is reduced in an organic molecule salifying manner, and a phenazine matrix with high stability is introduced to improve the stability of the organic molecules and improve the stability of the battery.
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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