Lithium ion battery cylindrical casing with heating function and preparation method thereof
A technology of lithium-ion batteries and cylinders, which is applied in the field of chemical power materials, can solve the problems such as the inability to realize the heating of the shell and a single battery cell, and achieve the effects of easy lithium analysis, easy production and processing, and convenient manufacturing process
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Embodiment 1
[0033] First, prepare a ferroalloy cylindrical barrel-shaped base with a wall thickness of 120 μm;
[0034] Second, refer to figure 1 , coating a polyurethane adhesive layer with a thickness of 2 μm on the outside of the barrel-shaped substrate;
[0035] Third, refer to figure 1 , on the basis of step 2, apply a superimposed heating film layer with a thickness of 2 μm, and ensure that the positive and negative terminals of the heating film layer are of sufficient length to facilitate subsequent processing;
[0036] Fourth, refer to figure 1 , on the basis of step 3, apply an epoxy polyvinylidene fluoride adhesive layer with a thickness of 2 μm;
[0037] Fifth, refer to figure 1 , on the basis of step 4, coating a layer of nylon polymer material with a thickness of 10 μm;
[0038] Sixth, refer to figure 2 , use the dry method to make the layers tightly bonded and ensure that the positive and negative terminals of the heating film layer are placed on the outermost, and fi...
Embodiment 2
[0040] First, prepare an aluminum alloy cylindrical barrel base with a wall thickness of 400 μm;
[0041] Second, refer to figure 1 , coating a layer of polyurethane, epoxy polyvinylidene fluoride, and polyacrylate mixed adhesive with a thickness of 5 μm on the outside of the barrel-shaped substrate;
[0042] Third, refer to figure 1 , on the basis of step 2, apply a heating film layer with a thickness of 50 μm, and ensure that the positive and negative terminals of the heating film layer are of sufficient length to facilitate subsequent processing;
[0043] Fourth, refer to figure 1 , on the basis of step 3, coating a layer of polyurethane, epoxy polyvinylidene fluoride, and polyacrylate mixed adhesive layer with a thickness of 5 μm;
[0044] Fifth, refer to figure 1 , on the basis of step 4, coating a layer of nylon, polypropylene, polyamide, and polyurethane mixed polymer materials with a thickness of 50 μm;
[0045] Sixth, refer to figure 2 , use the thermal method ...
Embodiment 3
[0047] First, prepare an aluminum alloy cylindrical barrel base with a wall thickness of 200 μm;
[0048] Second, refer to figure 1 , coating a polyacrylate adhesive layer with a thickness of 3 μm on the outside of the barrel-shaped substrate;
[0049] Third, refer to figure 1 , on the basis of step 2, apply a superimposed heating film layer with a thickness of 20 μm, and ensure that the positive and negative terminals of the heating film layer are of sufficient length to facilitate subsequent processing;
[0050] Fourth, refer to figure 1 , on the basis of step 3, apply a polyurethane adhesive layer with a thickness of 5 μm;
[0051] Fifth, refer to figure 1 , on the basis of step 4, coating a polypropylene polymer material layer with a thickness of 20 μm;
[0052] Sixth, refer to figure 2, using a dry method to make the layers tightly bonded and ensure that the positive and negative terminals of the heating film layer are placed on the outermost, and finally a lithium...
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Abstract
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