Preparation method of lithium-ion battery electrode

Abstract

The invention provides a preparation method of a lithium-ion battery electrode. The preparation method comprises the following steps of: (1) mixing lithium hydroxide, boric acid and acetic acid, heating the mixture to 220 to 270 DEG C, preserving the temperature, and then heating the mixture to 400 DEG C to obtain diacetic acid lithium borate particles; (2) dissolving the diacetic acid lithium borate particles into a solvent, filtering the solution, adding superconduction carbon black and conductive graphite, mixing the superconduction carbon black and the conductive graphite for 30min at the temperature of 100 DEG C, and then drying the mixture to obtain a conductive carbon lithium mixture; (3) soaking and washing alkaline conductive glass in an alkaline washing solution to remove impurities on the surface of the alkaline conductive glass; (4) taking out the soaked alkaline conductive glass, washing the washing solution on the surface of the alkaline conductive glass with water, ultrasonically washing the conductive glass through acetone, then washing the conductive glass through the water, and drying the conductive glass; coating and postprocessing. The impedance of the lithium-ion battery electrode obtained through using the method is small.

Description

technical field [0001] The invention relates to a preparation method, in particular to a preparation method of a lithium ion battery electrode. Background technique [0002] Batteries have been widely used in many occasions and products, and the efficiency of batteries has always been the goal that people want to improve. People have made efforts from various aspects in order to improve the efficiency of batteries, such as new materials, new preparation methods, etc. For example, the impedance of electrodes in lithium-ion batteries is usually large, which affects battery efficiency. Contents of the invention [0003] The technical problem mainly solved by the present invention is that the current lithium-ion battery electrodes have relatively large impedance, thereby affecting battery efficiency. [0004] In order to solve the above technical problems, the embodiment of the present invention discloses a method for preparing a lithium-ion battery electrode, comprising the ...

AI Technical Summary

Problems solved by technology

People have made efforts from various aspects in order to improve the efficiency of batteries, such as from new materials, new preparation methods, etc. For example, the impedance of electrodes in lithium-ion batteries is usually large, which affects battery efficiency.