Diaphragm for novel zinc-bromine cell
A zinc-bromine battery and diaphragm technology, which is used in fuel cells, regenerative fuel cells, fuel cell components and other directions, can solve the problems of complex production process, high price, and performance that cannot fully meet battery performance requirements, and achieve thermal weight loss. Stable, high moisture content, the effect of increasing the service life
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Embodiment 1
[0035] A novel diaphragm for zinc-bromine batteries, comprising an intermediate layer 1 and an outer cladding layer 2, the intermediate layer is a fiber composite layer, the outer cladding layer is a polymer composite layer, the outer cladding layer is coated and fixed on the outside of the intermediate layer, the upper surface of the outer cladding layer and There are several groups of grooves 3 on the lower surface which are sunken inwards, and the cross-sectional shape of the grooves is an isosceles triangle structure.
[0036] The fiber composite layer is woven from bamboo fiber, viscose fiber, polyamide fiber and sisal fiber, and bamboo fiber accounts for 35wt%, viscose fiber accounts for 3wt%, polyamide fiber accounts for 44wt%, sisal fiber accounts for 18 wt%.
[0037] The composition of the outer cladding is as follows in parts by mass:
[0038] 58 parts of polyvinyl alcohol, 10 parts of extender oil, 6 parts of anhydrous silicon dioxide, 15 parts of phosphomolybdic a...
Embodiment 2
[0046] A novel diaphragm for zinc-bromine batteries, comprising a middle layer and an outer cladding, the middle layer is a fiber composite layer, the outer cladding is a polymer composite layer, the outer cladding is fixed on the outside of the middle layer, the upper surface and the lower surface of the outer cladding are There are several groups of grooves on the upper part which are sunken inwards, and the cross-sectional shape of the grooves is an isosceles triangle structure.
[0047] The fiber composite layer is woven from bamboo fiber, viscose fiber, polyamide fiber and sisal fiber, and bamboo fiber accounts for 35wt%, viscose fiber accounts for 3wt%, polyamide fiber accounts for 44wt%, sisal fiber accounts for 18 wt%.
[0048] The composition of the outer cladding is as follows in parts by mass:
[0049] 42 parts of polyvinyl alcohol, 5 parts of extender oil, 3 parts of anhydrous silicon dioxide, 10 parts of phosphomolybdic acid, 8 parts of polypropylene, 2 parts of ...
Embodiment 3
[0057]A novel diaphragm for zinc-bromine batteries, comprising a middle layer and an outer cladding, the middle layer is a fiber composite layer, the outer cladding is a polymer composite layer, the outer cladding is fixed on the outside of the middle layer, the upper surface and the lower surface of the outer cladding are There are several groups of grooves on the upper part which are sunken inwards, and the cross-sectional shape of the grooves is an isosceles triangle structure.
[0058] The fiber composite layer is woven from bamboo fiber, viscose fiber, polyamide fiber and sisal fiber, and bamboo fiber accounts for 35wt%, viscose fiber accounts for 3wt%, polyamide fiber accounts for 44wt%, sisal fiber accounts for 18 wt%.
[0059] The composition of the outer cladding is as follows in parts by mass:
[0060] 75 parts of polyvinyl alcohol, 22 parts of extender oil, 8 parts of anhydrous silicon dioxide, 18 parts of phosphomolybdic acid, 25 parts of polypropylene, 6 parts of...
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