Flexible water system zinc ion battery
A zinc-ion battery and water system technology, applied in the field of flexible energy storage, can solve the problems of complex manufacturing process, poor bending performance, poor cycle performance, etc., to avoid potential safety hazards, reduce contact resistance and battery internal resistance, and achieve good packaging effect. Effect
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Embodiment 1
[0033] Such as figure 1 As shown, a flexible water-based zinc-ion battery includes a positive electrode layer 1, a negative electrode layer 2, a current-collecting layer 3, a separator 4 and an aqueous electrolyte 5, and the current-collecting layer 3 includes a gas-permeable layer 31, a matrix layer 32 and a conductive layer 33 , there is an opening 34 on the base layer.
[0034]First, the high-density polyethylene film is used as the air-permeable layer, and the polyethylene terephthalate (PET) film with a 1mm opening is used as the base layer, and one side of the base layer is combined with the air-permeable layer, and then the graphene The slurry is coated on the other side of the base layer to form a conductive layer, thereby forming a current-collecting layer structure of a breathable layer-base layer-conductive layer, and a polyethylene terephthalate (PET) film base layer and a breathable layer or a conductive layer Before lamination, the surface is cleaned by ultrason...
Embodiment 2
[0039] A flexible water-based zinc-ion battery includes a positive electrode layer, a negative electrode layer, a current-collecting layer, a separator, and an aqueous electrolyte. First, the high-density polyethylene film is used as the air-permeable layer, and the polyethylene naphthalate (PEN) film with three 0.5mm openings is used as the base layer, and the carbon nanotube slurry is coated on one side of the base layer to form conductive layer, and then compound the air-permeable layer with the other side of the matrix layer to form a current-collecting layer structure of air-permeable layer-matrix layer-conductive layer, polyethylene naphthalate (PEN) film base layer and air-permeable layer or The surface of the conductive layer is cleaned by a plasma cleaning machine before compounding.
[0040] Then, use niobium-doped manganese dioxide as the positive electrode active material, mix the binder, the conductive agent Super-P and CNT to obtain the positive electrode slurry;...
Embodiment 3
[0046] A flexible water-based zinc-ion battery includes a positive electrode layer, a negative electrode layer, a current-collecting layer, a separator, and an aqueous electrolyte. First, the meta-aramid fiber film is used as the air-permeable layer, and the polyvinyl alcohol (PVA) film with five 0.12mm openings is used as the base layer, and one side of the base layer is combined with the air-permeable layer, and then the graphene slurry is coated. Cover the other side of the base layer to form a conductive layer, and then form a gas-permeable layer-base layer-conductive layer structure of the current-collecting layer. The polyvinyl alcohol (PVA) film base layer is cleaned by an ultrasonic cleaning machine before being combined with the gas-permeable layer or conductive layer. Its surface is cleaned.
[0047] Then, use carbon-coated manganese monoxide as the positive electrode active material, mix the binder, conductive agent Super-P and KS-6 to obtain the positive electrode ...
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