Preparation method of electrode sheet including PTC coating layer and lithium ion battery
A lithium-ion battery and pole piece technology, which is applied in the field of preparation of PTC-coated pole pieces, can solve the problems of affecting the effect, high cost, discontinuity of porous ceramic heat-sensitive materials, etc., to achieve improved compatibility and low cost , the effect of good application potential
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[0028] Specific embodiment one
[0029] A preparation method of pole piece containing PTC coating, including the following steps:
[0030] Step 1: In parts by weight, stir 400-1000 parts of solvent, 50-100 parts of high molecular polymer, 0.5-3 parts of conductive agent at a speed of 100-3000r / min, stir until the materials are evenly dispersed, and then add 0.1 to 5 parts of a mixed reagent of high voltage resistant crosslinking agent and initiator, wherein the mass fraction of the initiator in the high voltage resistant crosslinking agent is 0.1% to 2%, stirring at a speed of 100 to 1000r / min for 2 to 8h , Get the coating slurry;
[0031] Step 2: Coat the coating slurry on the current collector by spraying or gravure printing using a coating machine, and dry at 80-120°C for 2-6 hours to obtain a current collector coated with a PTC coating, wherein The thickness of the PTC coating is 0.1um~10um;
[0032] Step 3: Coat the pole piece slurry uniformly on the current collector coated wi...
Example Embodiment
[0047] Specific embodiment two
[0048] A preparation method of pole piece containing PTC coating, including the following steps:
[0049] Step 1: In parts by weight, stir 400-1000 parts of solvent, 50-100 parts of high molecular polymer, 0.5-3 parts of conductive agent at a speed of 100-3000r / min, stir until the materials are evenly dispersed, and then add 0.1 to 5 parts of a mixed reagent of high voltage resistant crosslinking agent and initiator, wherein the mass fraction of the initiator in the high voltage resistant crosslinking agent is 0.1% to 2%, stirring at a speed of 100 to 1000r / min for 2 to 8h , Get the coating slurry;
[0050] Step 2: Coat the coating slurry on the current collector by spraying or gravure printing using a coating machine, and dry at 80-120°C for 2-6 hours to obtain a current collector coated with a PTC coating, wherein The thickness of the PTC coating is 0.1um~10um;
[0051] Step 3: Coat the pole piece slurry uniformly on the current collector coated wi...
Example Embodiment
[0066] Specific embodiment three
[0067] A preparation method of pole piece containing PTC coating, including the following steps:
[0068] Step 1: In parts by weight, stir 400-1000 parts of solvent, 50-100 parts of high molecular polymer, 0.5-3 parts of conductive agent at a speed of 100-3000r / min, stir until the materials are evenly dispersed, and then add 0.1 to 5 parts of a mixed reagent of high voltage resistant crosslinking agent and initiator, wherein the mass fraction of the initiator in the high voltage resistant crosslinking agent is 0.1% to 2%, stirring at a speed of 100 to 1000r / min for 2 to 8h , Get the coating slurry;
[0069] Step 2: Coat the coating slurry on the current collector by spraying or gravure printing using a coating machine, and dry at 80-120°C for 2-6 hours to obtain a current collector coated with a PTC coating, wherein The thickness of the PTC coating is 0.1um~10um;
[0070] Step 3: Coat the pole piece slurry uniformly on the current collector coated ...
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