Lithium ion battery with polymethyl methacrylate micropore diaphragm
A technology of polymethyl methacrylate and lithium-ion batteries, which is applied to battery components, circuits, electrical components, etc., can solve the problems of using a large amount of solvents, prone to finger-shaped holes, and unfavorable ion passage, so as to avoid structural The effect of collapse
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[0017] The technical solutions of the present invention and the effects achieved are further described below through specific examples, but the following examples do not constitute a limitation to the present invention.
[0018] A lithium ion battery with a polymethyl methacrylate microporous diaphragm, comprising a negative pole, a positive pole, an electrolyte, and a diaphragm, wherein the diaphragm is prepared by the following method:
[0019] (1) Place the polymethyl methacrylate in a drying oven and dry it at a constant temperature for 10 to 15 hours to remove the moisture therein, and seal the dried polymethyl methacrylate for subsequent use;
[0020] (2) Accurately weigh the polymethyl methacrylate particles with an electronic balance, and add an organic solvent for dissolving polymethyl methacrylate to make a casting solution whose mass concentration is 25%;
[0021] (3) After the polymethyl methacrylate is completely dissolved and stirred evenly, seal and block the li...
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