66results about How to "Increase electrophilicity" patented technology

The invention provides an organometallic iridium complex and a simple synthesis method and uses thereof, the method comprising: step (a): subjecting a t-Bu-Ar1-MgX and a nitrogen-containing heterocyclic aromatic salt to a nucleophilic reaction to obtain an intermediate product, wherein Ar1 is an arylene group having 5 to 16 carbon atoms or a sulfur-containing heteroarylene group having 4 to 14 carbon atoms; X is a halogen atom; the nitrogen-containing heterocyclic aromatic salt is a salt that contains a t-Bu-Ar2 group, and Ar2 is a nitrogen-containing heteroarylene group having 5 to 14 carbonatoms; t-Bu is a tertiary butyl group; step (b): subjecting the intermediate product and an oxidizing agent to an aromatic cyclization reaction to obtain a coordination compound; and step (c): reacting the coordination compound with iridium acetylacetonate to obtain an organometallic iridium complex. The organometallic iridium complex has a structure represented as formula (I).

The invention discloses a method for modifying a grid-shaped lithium-ion battery diaphragm with high wettability, and belongs to the technical field of modification of the lithium-ion battery diaphragm. The key points of the technical scheme of the present invention are: soak the lithium-ion battery diaphragm in the mixed solution formed by nitric acid and potassium permanganate, seal it and place it in a constant temperature water bath at 20-60°C for 6-72h, and then use hydrogen peroxide or hydrochloric acid solution After cleaning, decompression and suction filtration, air dry naturally, trim the edges and vacuum dry at 30-60°C for 12-72 hours to obtain a highly wettable grid-shaped lithium-ion battery separator with a thickness of 25-32 μm and a porosity of 40%-70%. . The highly wettable lithium-ion battery diaphragm prepared by the invention has uniform pore size, good wettability and high ion conductivity, which improves the hydrophilicity and electrophilicity of the lithium-ion battery diaphragm, and also improves the charge-discharge capacity of the lithium-ion battery , the prepared highly wettable lithium-ion battery separator is resistant to electrolyte corrosion, has a simple process, strong stability and is easy for industrial application.

The invention provides a method for preparing a low-foaming cleaning agent, wherein the formula of the low-foaming cleaning agent is: anhydrous sodium metasilicate 1.6%-2.0%, polytricarboxylic acid ester 2%-4%, carboxylic acid amine Corrosion inhibitor 1%-3%, benzotriazole 1%-3%, polyacrylic acid 1%-3%, polyether modified silicone type defoamer 5%-8%, foam inhibitor 2%- 4%, water balance; wherein the preparation method of polyether modified silicone type defoamer is: prepare hydrogen-containing silicone oil; prepare mixed solution A; synthesis reaction; obtain viscous solid B which is polyether modified silicone Type defoamer. The object of the present invention is to provide a preparation method of a low-foam cleaning agent with low foam height and good cleaning effect.