Powder-based electrode forming method

Abstract

The invention relates to a powder-based electrode forming method, which comprises the following steps of: uniformly mixing a powder active substance, a powder conductive agent and a powder adhesive through a three-dimensional powder mixer or a zero-gravity powder mixer; crushing through a low-temperature crusher; performing fibrous extrusion forming through a double-screw extruder or an internal mixer / open mill and then achieving target thickness through hot pressing of a calender; and finally performing three-layer compounding with a current collector of a printing conductive adhesive to form an electrode and performing cold rolling to improve the compaction density. According to the powder-based electrode forming method, a method of assisting machining by using a solvent is abandoned, so that the purity of an electrode material is guaranteed to the greatest extent, no energy waste of a drying process or restriction to the time of the drying process exists in a production process, the cost is reduced, the energy loss is reduced, and the working speed is increased.

Description

technical field [0001] The invention relates to a powder-based electrode forming method. Background technique [0002] With the rapid growth of the world's population and the rapid development of the social economy, resources and energy are increasingly scarce, and the ecological environment is deteriorating. Human beings will be more dependent on clean and renewable new energy sources. In the 21st century, higher requirements are placed on energy storage devices. Electrochemical power sources have been widely used as energy storage devices. With the development of my country's power supply industry, the demand for electrochemical power sources is increasing, and its performance requirements are also getting higher and higher. [0003] Energy density, power density and service life are the three most important indicators of electrochemical energy storage devices. As electrochemical energy storage devices, fuel cells, lithium-ion batteries, lithium-ion capacitors, and superc...

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned shortcomings such as solvent residues affecting the performance of electrochemical devices, low production efficiency, and high energy consumption, the technical problem to be solved in the present invention is to provide a powder-based electrode forming method without the introduction of any water or solvent in the electrode processing project. So as to ensure the purity of the material to the greatest extent, and save energy

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