a fuel cell
A fuel cell and electrolyte technology, applied in fuel cells, battery electrodes, circuits, etc., can solve the problems of restricting large-scale promotion and high cost, and achieve good application value, low cost, and high voltage
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Embodiment 1
[0031] Preparation of the anode: Take nickel foam with an area of 80×20mm and a thickness of 1mm as the current collector, select lithium metal with an area of 10×10mm and a mass of 0.05g as the anode active material, and press the lithium sheet into the nickel foam with a pressure of 2MPa, and place At a molar concentration of 1mol L -1 LiPF 6 In the organic electrolyte of ethylene carbonate and propylene carbonate (volume ratio is 1:1);
[0032] Preparation of the cathode: Take 5g of deionized water at 25°C as the cathode active material, add 1g of lithium sulfate (analytical pure), fully oscillate and dissolve and use it as the electrolyte, and insert foamed nickel with an area of 80×20mm and a thickness of 1mm into the aqueous solution as Current collector; the deionized water in the cathode not only acts as an active material but also serves as an electrolyte;
[0033] Preparation of diaphragm: use a thickness of 100μm and an area density of 30g / m 2 5g of methyl ...
Embodiment 2
[0039] Preparation of the anode: Take nickel foam with an area of 80×20mm and a thickness of 1mm as the current collector, select metal sodium with an area of 10×10mm and a mass of 0.15g as the anode active material, and press the sodium sheet into the nickel mesh with a pressure of 2MPa, and place At a molar concentration of 1mol L -1 LiPF 6 In the organic electrolyte of ethylene carbonate and propylene carbonate (volume ratio is 1:1);
[0040] Preparation of the cathode (gel water): select 1wt% polyvinyl alcohol hydrogel as the cathode active substance, weigh 1g of PVA (polyvinyl alcohol) with a degree of polymerization of 1750±50, dissolve it in 100mL of distilled water and shake it to dissolve, Then add 10g of lithium sulfate as the electrolyte to dissolve completely, put the prepared PVA aqueous solution in a ground flask, heat it in a constant temperature water bath to 90°C, stir and heat, after the PVA is completely dissolved, keep it at 60°C for 30min to remove th...
Embodiment 3
[0047] Preparation of the anode: take nickel foam with an area of 80×20mm and a thickness of 1mm as the current collector, select sodium metal with an area of 10×10mm and a mass of 0.15g as the anode active material, and press the sodium metal sheet into the nickel mesh with a pressure of 2MPa. pressed into pole pieces for use;
[0048] Preparation of the cathode: Take 25mL of deionized water at 25°C as the cathode active material, add 5g of lithium sulfate (analytical pure), fully shake and dissolve, and use it as the electrolyte and counter electrode; A copper sheet is inserted into the aqueous solution as a current collector;
[0049] Electrolyte membrane wrapping the anode: Take 18mL of molecular sieve-dried NMP (1-methyl-2-pyrrolidone) reagent, add 2g of vacuum-dried PVDF (polyvinylidene fluoride) powder to fully dissolve, stir, mix evenly, and let stand to remove Soak for 30 minutes to form a clear and transparent mixed solution I with a mass fraction of 20%; at a m...
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