n-ni(se) 2 /cc self-supporting air electrode and preparation method thereof, flexible zinc-air battery
A self-supporting electrode and atmosphere technology, applied in fuel cells, battery electrodes, fuel cell-type half-cells and secondary battery-type half-cells, etc., can solve the problems of high resistance and the cycle performance of zinc-air batteries that need to be improved. Achieve low resistance, good charge and discharge potential difference and stability, and good application prospects
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Embodiment 1
[0035] The N-Ni(Se) of this embodiment 2 The preparation method of / CC self-supporting air electrode comprises the steps:
[0036] 1) Put a 1cm*2cm carbon cloth into acetone, sonicate for 2 minutes, then take it out and place it in ethanol, sonicate it for 2 minutes, then put it into deionized water, sonicate it for 2 minutes, and take it out.
[0037] Mix 18mL ethanol and 9mL n-butanol evenly to obtain a mixed solvent, then add 1.5g nickel acetate tetrahydrate (Ni(CHCOO) 2 4H 2 O), then keep warm at 60°C and stir for 30min, then transfer to the reaction kettle, add the treated carbon cloth into it, carry out hydrothermal reaction at 60°C, the reaction time is 8h, and Ni(CHCOO) 2 / CC mixture.
[0038] 2) to step 1) the potassium persulfate (K) of 0.36mol is added in the mixed solution after the reaction 2 S 2 o 8) and 9mL of ammonia water, mixed evenly to obtain a blue mixed solution; then hydrothermally reacted at 180°C, and the reaction time was 12h. After the reactio...
Embodiment 2
[0043] The preparation method of the self-supporting air electrode of this embodiment includes the following steps:
[0044] 1) Put a 1cm*2cm carbon cloth into acetone, sonicate for 2 minutes, then take it out and place it in ethanol, sonicate it for 2 minutes, then put it into deionized water, sonicate it for 2 minutes, and take it out.
[0045] Mix 18mL ethanol and 9mL n-butanol evenly to obtain a mixed solvent, then add 1.5g nickel acetate tetrahydrate (Ni(CHCOO) 2 4H 2 O), then keep warm at 60°C and stir for 30min, then transfer to the reaction kettle, add the treated carbon cloth into it, carry out hydrothermal reaction at 60°C, the reaction time is 8h, and Ni(CHCOO) 2 / CC mixture.
[0046] 2) to step 1) the potassium persulfate (K) of 0.36mol is added in the mixed solution after the reaction 2 S 2 o 8 ) and 9mL of ammonia water (the ammonia water was stored at 0°C before use), and mixed evenly to obtain a blue mixed solution; then hydrothermally reacted at 180°C for...
Embodiment 3
[0051] The preparation method of the self-supporting air electrode of this embodiment includes the following steps:
[0052] 1) Put a 1cm*2cm carbon cloth into acetone, sonicate for 2 minutes, then take it out and place it in ethanol, sonicate it for 2 minutes, then put it into deionized water, sonicate it for 2 minutes, and take it out.
[0053] Mix 18mL ethanol and 9mL n-butanol evenly to obtain a mixed solvent, then add 1.5g nickel acetate tetrahydrate (Ni(CHCOO) 2 4H 2 O), then keep warm at 60°C and stir for 30min, then transfer to the reaction kettle, add the treated carbon cloth into it, carry out hydrothermal reaction at 60°C, the reaction time is 8h, and Ni(CHCOO) 2 / CC mixture.
[0054] 2) to step 1) the potassium persulfate (K) of 0.36mol is added in the mixed solution after the reaction 2 S 2 o 8 ) and 9mL of ammonia water (the ammonia water was stored at 0°C before use), and mixed evenly to obtain a blue mixed solution; then hydrothermally reacted at 180°C for...
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