Porous zinc-tin alloy negative electrode material for zinc-air battery and preparation method of porous zinc-tin alloy negative electrode material
A zinc-air battery, alloy anode technology, applied in battery electrodes, fuel cell-type half-cells and primary battery-type half-cells, circuits, etc. control issues
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Embodiment 1
[0039] First pass the nickel foam with a tab area of 4×5cm on the short side with a copper-plastic wire with a copper diameter of 2.5mm, and solder it firmly with solder, cover the solder joint with epoxy resin, and let it solidify overnight. It is used as a cathode after degreasing and deoxidizing layer. After polishing the high-purity zinc sheet with a specification of 3×6×0.3cm with sandpaper, drill a hole on the side and pass it through with a copper wire and weld it firmly. After cleaning, it is used as an anode. Immerse the treated foam nickel cathode and zinc sheet anode in the electroplating solution, the volume of the electroplating solution is 500mL, wherein the zinc pyrophosphate (Zn 2 P 2 o 7 ), stannous pyrophosphate (Sn 2 P 2 o 7 ), potassium pyrophosphate (K 4 P 2 o 7 ), the gelatin of concentration 3g / L. The temperature of the solution was controlled at 55° C., and the pH value of the solution was 9.5. The distance between the two poles is 3cm, and ...
Embodiment 2
[0042] First pass the nickel foam with a tab area of 4×6cm on the short side with a copper-plastic wire with a copper diameter of 2.5mm, and solder it firmly with solder, cover the solder joint with epoxy resin, and let it solidify overnight. It is used as a cathode after degreasing and deoxidizing layer. After polishing the high-purity zinc sheet with a specification of 4×10×0.3cm with sandpaper, drill a hole on the side and pass it through with a copper wire and weld it firmly. After cleaning, it can be used as an anode. Immerse the treated foam nickel cathode and zinc sheet anode in the electroplating solution, the volume of the electroplating solution is 400mL, wherein zinc sulfate (ZnSO4) with a concentration of 20g / L is added. 4 ·7H 2 O), tin sulfate (SnSO 4 ), concentration of 140g / L sodium gluconate (C 6 h 11 o 7 Na), sodium sulfate (NaSO 4 ). The temperature of the solution was controlled at 25° C., and the pH value was 5. The distance between the two poles ...
Embodiment 3
[0045] First pass the nickel foam with a tab area of 4×7cm on the short side with a copper-plastic wire with a copper diameter of 2.5mm, and solder it firmly with solder, cover the solder joint with epoxy resin, and let it solidify overnight. It is used as a cathode after degreasing and deoxidizing layer. After polishing the high-purity zinc sheet with a specification of 5×8×0.3cm with sandpaper, drill a hole on the side and pass it through with a copper wire and weld it firmly, and use it as an anode after cleaning. Immerse the treated foam nickel cathode and zinc sheet anode in the electroplating solution, the volume of the electroplating solution is 500mL, wherein zinc sulfate (ZnSO4) with a concentration of 50g / L is added 4 ·7H 2 O), the stannous chloride (SnCl) of concentration 5g / L 2 ), citric acid with a concentration of 110g / L (C 6 h 8 o 7 ), ammonium sulfate ((NH 4 ) 2 SO 4 ), the polyethylene glycol (PEG) of the molecular weight 800 of concentration 0.5g / L,...
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