A photocathode and a solar cell containing the photocathode
A solar cell and photocathode technology, applied in the field of solar cells, can solve the problems of being unsuitable for mass production and application, increasing the thickness and weight of the battery, and being unfavorable to the lightening of the battery, so as to reduce the weight of the battery, improve the photocurrent density, The effect of easy portability
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Embodiment 1
[0017] 1. Preparation of photocathode: take LiMn 2 o 4 is the active material, acetylene black is the conductive agent, polytetrafluoroethylene is the binder, and a certain amount of LiMn is weighed according to the weight ratio of active material: conductive agent: binder is 80:10:10 2 o 4 , acetylene black, polytetrafluoroethylene, LiMn 2 o 4 and acetylene black in a mortar, according to LiMn 2 o 4 : Ethanol is the weight ratio of 20:10 and adds ethanol, grinds evenly, then adds the weighed polytetrafluoroethylene and grinds evenly. The obtained mixture was rolled into a film with a thickness of 0.25 mm on a roller press, air-dried in an oven at 50° C. for 48 hours, and dried in vacuum at 120° C. for 12 hours. Take the film with a certain volume (size: 5mm×5mm) and press it on a nickel mesh with a tablet press.
[0018] 2. Preparation of photoanode: commercially available TiO 2 The electrode has an effective area of 5mm*5mm.
[0019] 3. Select a commercially avail...
Embodiment 2
[0022] 1. Preparation of photocathode: take LiCoO 2 is the active material, graphite is the conductive agent, polyvinylidene fluoride is the binder, and a certain amount of LiCoO is weighed according to the weight ratio of active material: conductive agent: binder is 95:2:3 2 , graphite, polyvinylidene fluoride, LiCoO 2 and graphite in a mortar, according to LiCoO 2 : Ethanol is 20:10 weight ratio to add ethanol, grind evenly, then add weighed polyvinylidene fluoride and grind evenly. The obtained mixture was rolled into a film with a thickness of 0.25 mm on a roller press, air-dried in an oven at 50° C. for 48 hours, and dried in vacuum at 120° C. for 12 hours. Take a certain volume (size: 5mm×5mm) of the film and press it on stainless steel with a tablet press.
[0023] 2. Preparation of photoanode: commercially available TiO 2 Electrode, the effective area is 5mm*5mm, then will contain PbX 2 and CH 3 NH 3 solution of I, spin-coated onto the TiO 2 electrode, that is,...
Embodiment 3
[0027] 1. Preparation of photocathode: take LiFePO 4 is the active material, carbon black is the conductive agent, polyhexafluoropropylene is the binder, and a certain amount of LiFePO is weighed according to the weight ratio of active material: conductive agent: binder is 85:5:10 4 , carbon black, polyhexafluoropropylene, first LiFePO 4 and carbon black in a mortar, according to LiFePO 4 : Ethanol is 20:10 weight ratio to add ethanol, grind evenly, then add weighed polyhexafluoropropylene and grind evenly. The obtained mixture was rolled into a film with a thickness of 0.25 mm on a roller press, air-dried in an oven at 50° C. for 48 hours, and dried in vacuum at 120° C. for 12 hours. Take a certain volume (size: 5mm×5mm) of the film and press it on the titanium mesh with a tablet press.
[0028] 2. Preparation of photoanode: commercially available TiO 2 The electrode has an effective area of 5mm*5mm.
[0029] 3. Use a commercially available PVDF membrane as the diaphra...
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