Method for manufacturing ion electron conduction aid particles for positive and negative electrodes

Abstract

A method for manufacturing ion-electron conduction aid particles for positive and negative electrodes, the method comprising the following steps: Step 500: taking a plurality of ceramic particles and a first alcohol aqueous solution, and mixing and grinding them using a grinder; Step 510: grinding the plurality of ceramic particles to a particle size smaller than a certain size, then adding a plurality of lithium fluoride particles and organic materials to the grinder for further mixing and grinding to form a first mixed slurry; Step 520: taking a second alcohol aqueous solution, polyvinylpyrrolidone, sodium dodecyl sulfate, a plurality of first carbon nanotubes and a plurality of graphene sheets, and thoroughly mixing them using a mixer to form a second mixed slurry; Step 530: adding the second mixed slurry to the grinder and mixing it with the first mixed slurry. Step 540: The above material is taken out from the mill and placed in a vacuum concentrator to remove the first and second alcohol aqueous solutions to obtain a mixed powder; Step 550: The mixed powder is placed in a sintering furnace for sintering in a nitrogen atmosphere, and the temperature is gradually increased to a specific temperature to obtain the multiple conductive particles. The organic material, polyvinylpyrrolidone, and sodium dodecyl sulfate will form multiple amorphous carbons under oxygen-free sintering. These multiple amorphous carbons will form an amorphous carbon layer covering the outer surface of each ceramic particle, and the multiple lithium fluoride particles, the graphene sheets, and the first carbon nanotubes will be distributed in the amorphous carbon layer, forming multiple conductive particles in total.

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