Manufacturing method for lithium ion battery diaphragm
A technology for lithium-ion batteries and diaphragms, which is applied to battery components, chemical instruments and methods, circuits, etc., and can solve problems such as poor control of porosity and pore size, uneven pore size distribution, and poor thermal stability. , to achieve the effect of good pro/liquid retention performance, uniform mechanical strength, and regular arrangement of fiber chains
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Example Embodiment
[0026] Example 1
[0027] The original formula of the ionic battery separator of this embodiment is shown in Table 1.
[0028] The preparation method of the lithium ion battery separator of this embodiment includes the following steps:
[0029] (1) Weigh each raw material according to the raw material ratio shown in Table 1, mix cotton fiber and water at a ratio of 4:100, and place it in a beating machine to obtain a cotton pulp with a beating degree of 60°. , Determine its moisture;
[0030] (2) Mix the cotton pulp obtained in step (1) with water in a ratio of 1:100, add antioxidants and flame retardants, stir and disperse, then dehydrate and shape on a copper mesh, then press and dry at 90°C to form a film ,stand-by;
[0031] (3) Prepare a suspension of modified polypropylene fiber and water in a ratio of 1:100, add adhesive, stir, and evenly disperse, then dehydrate and shape on a copper mesh, and dry at 110°C to form a film;
[0032] (4) Repeat step (3);
[0033] (5) The polypropyle...
Example Embodiment
[0035] Example 2
[0036] The original formula of the ionic battery separator of this embodiment is shown in Table 1.
[0037] The preparation method of the lithium ion battery separator of this embodiment includes the following steps:
[0038] (1) Weigh each raw material according to the raw material ratio shown in Table 1, mix cotton fiber and water at a ratio of 4:100, and place it in a beating machine to obtain a cotton pulp with a beating degree of 60°. , Determine its moisture;
[0039] (2) Mix the cotton pulp obtained in step (1) with water in a ratio of 1:100, add antioxidants and flame retardants, stir and disperse, then dehydrate and shape on a copper mesh, then press and dry at 110°C to form a film ,stand-by;
[0040] (3) Prepare a suspension of modified polypropylene fiber and water at a ratio of 1:100, add adhesive, stir, and evenly disperse, then dehydrate and form on a copper mesh, and dry at 90°C to form a film;
[0041] (4) Repeat step (3);
[0042] (5) The polypropylen...
Example Embodiment
[0044] Example 3
[0045] The original formula of the ionic battery separator of this embodiment is shown in Table 1.
[0046] The preparation method of the lithium ion battery separator of this embodiment includes the following steps:
[0047] (1) Weigh each raw material according to the raw material ratio shown in Table 1, mix cotton fiber and water at a ratio of 4:100, and place it in a beating machine to obtain a cotton pulp with a beating degree of 60°. , Determine its moisture;
[0048] (2) Mix the cotton pulp obtained in step (1) with water in a ratio of 1:100, add antioxidants and flame retardants, stir and disperse, then dehydrate and shape on a copper mesh, then press and dry at 110°C to form a film ,stand-by;
[0049] (3) Prepare a suspension of modified polypropylene fiber and water at a ratio of 1:100, add adhesive, stir, and evenly disperse, then dehydrate and form on a copper mesh, and dry at 90°C to form a film;
[0050] (4) Repeat step (3);
[0051] (5) The polypropylen...
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