Whole pollution-free manufacturing method for electrode containing electrolyte salt

Abstract

The invention relates to a whole pollution-free manufacturing method for an electrode containing electrolyte salt. No water or solvent is led in a productive process of the electrode, accordingly purity of an electrode material is guaranteed to the maximum degree, and performance of an electrochemical device is improved. An inner wall of a pipe in a full-automatic powder transportation process is made of high-stability and high-wearing inorganic nonmetallic materials, and pollution caused by contact between electrode powder materials and metal is avoided. In all processes comprising powder handling and film processing, the electrode materials are not contacted with the metal in all processes. In addition, the electrolyte salt is evenly distributed in the electrode in an electrode manufacture process, only an electrolyte solvent is injected in a hollowing liquid injection process, and crystallographic problems of the electrolyte salt are solved. Simultaneously, the electrolyte solvent after liquid injection forms a high-speed ion motion channel inside the electrode in a process for dissolving the electrolyte salt, and power density of the electrochemical energy-saving device is greatly improved.

Description

technical field [0001] The invention relates to a pollution-free electrode manufacturing method containing electrolyte salt. Background technique [0002] With the development of my country's power supply industry, the demand for electrochemical energy storage devices is increasing, and the performance requirements are also getting higher and higher. And specific energy storage devices such as fuel cells, lithium-ion batteries, lithium-ion capacitors and supercapacitors have also made some progress. However, with the continuous development of electrochemical energy storage devices, some technical problems continue to appear, which have become a technical bottleneck restricting its development. These issues include: increased energy density, reduced equivalent series internal resistance, increased cycle life, and compatibility issues with electrode materials / electrolytes, etc. [0003] The most critical thing that affects the performance of a single device is the core of th...

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Problems solved by technology

[0008] In view of the above-mentioned shortcomings that the current electrochemical energy storage device processing technology is easy to introduce impurities, the technical problem to be solved in the present invention is to provide a pollution-free electrode manufacturing method in the whole process, without any introduction of water or solvent in the electrode processing project, so as to maximize the Guaranteed purity of materials

[0009] In view of the above-mentioned problem that the liquid injection process of the electrochemical energy storage device is prone to crystallization of electrolyte salt, the technical problem to be solved in the present invention is to provide a method for manufacturing an electrode containing electrolyte salt, which can evenly distribute the electrolyte salt during the electrode manufacturing process. into the electrode, and only the electrolyte solvent is injected during the subsequent injection process, avoiding the problem of electrolyte salt crystallization

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