Chemical drying water removal method
A drying and chemical technology, applied in the direction of drying solid materials, drying solid materials without heating, drying, etc., can solve problems such as battery performance impact and hazards, achieve breakthroughs in production bottlenecks, remove moisture, and improve drying effects
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[0019] Example 1, Take the battery core drying application in the lithium battery industry as an example
[0020] In the container with the battery cells, pass in the trimethylindium at least one equivalent of the total water content of all the battery cells through the accurate sampling system. The trimethylindium volatilizes and quickly contacts the surface and gaps of the dried battery cells. Water molecules react. The reaction principle is that trimethyl indium reacts with water to generate methane gas, indium oxide or indium hydroxide and transition products.
[0021] Pass the desiccant trimethyl indium and let it stand for a period of time until the trimethyl indium reacts with the water in the battery cell to be dried completely.
[0022] Then vacuum for 10 minutes or purge with dry high-purity inert gas to remove excess substances and by-products.
[0023] According to the Karl Fischer Coulometer test, the moisture content of the battery core dried by this method is basically ...
Example Embodiment
[0024] Example 2, Take the drying application of transformer insulation fiber in the electrical industry as an example
[0025] In the container with the battery core, pass in the trimethylaluminum equivalent of at least 1 times the total water content of all the insulating fibers through the precise sampling system. The trimethylaluminum volatilizes and quickly interacts with the surface and the gap of the dried insulating fiber. Water molecules react. The reaction principle is that trimethyl aluminum reacts with water to generate methane gas, aluminum oxide or aluminum hydroxide and transition products.
[0026] After passing in the desiccant trimethylaluminum, let it stand for a period of time until the trimethylaluminum reacts completely with the water of the dried insulating fiber. Then vacuum for more than 20 minutes, or purge with dry high-purity inert gas to remove excess materials and by-products.
[0027] Tested by Karl Fischer Coulometer, the moisture content of the insul...
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