\ Water battery Since the 1990s, due to the increased demand for high-energy, long-life energy that can be used in seawater, research on aluminum-water batteries has been officially launched. By the first decade of this century, more complete batteries have been successfully manufactured. At the Shanghai International Disaster Reduction Exhibition, which opened on October 10, 2012, some water battery-powered featured products have emerged.
A water battery, a battery that uses water as a raw material to generate electricity. This battery can generate electricity by adding water in addition to the solid material itself. Since the 1990s, research on aluminum-water batteries has been officially launched due to increased demand for high-energy, long-life energy that can be used in seawater. At the Shanghai International Disaster Reduction Exhibition, which opened on October 10, 2012, some water battery-powered featured products have emerged. Compared with lithium-ion batteries, water-fuel batteries have comparable charging times and several times the capacity. Therefore, the standby time of mobile phones can be extended to weeks or even one or two months, and the talk time can be calculated without hours.
Water battery manufacturing method1. Rod battery: Take a charcoal stick with an opening at one end, take a napkin, wrap it tightly on the charcoal stick, soak it in saturated brine, and then take an aluminum foil tightly wrapped around the charcoal stick. Above, a battery clip is clamped at the opening of the charcoal rod at one end, one end is clamped on one pole of the motor, and the other battery clip is clamped on the aluminum foil at one end, and the other end is clamped on the other pole of the motor. At this time, the motor rotates and the voltage is about Around 0.8v;
2. Take a high-quality battery and take an aluminum can, cut off the can lid with scissors, then roll it into a tube with sandpaper (with the sand facing outwards), rub off the glue layer in the can, and then take a napkin to make it fit. On the wall of the tank, pour some saturated saline solution into the napkin, insert a charcoal stick, and fill the surrounding with charcoal, compact it with a wooden stick until it is full, and clamp it with a battery clip at one end. At the opening of the charcoal stick, one end is clamped on one pole of the motor, and the other battery clip is clamped on the aluminum skin at one end, and one end is clamped on the other pole of the motor. At this time, the motor rotates and the voltage is about 1.5v.
How to repair water and batteryMotorcycles, electric vehicles, and children's cars are equipped with water batteries (batteries with sulphuric acid water). Sometimes these cars are kept at home for a year, or for a few months, they cannot be recharged. According to the person who sells the battery or the car repair, this is the battery is broken, you need to buy a new battery, but the new one is more than 100 pieces, and it is only a few dollars for a simple repair.
Tools/raw materials
Water battery to be repaired
Battery replenisher (diluted sulfuric acid 3% solution)
Method / Step 1
First check if the charger is intact, you can find a bulb test (it is better to have a multimeter). Test whether the two output clips have electricity. If it is intact (when it is broken, hurry to find a good one), charge the battery (positive to positive, negative to negative) for more than 1 hour, check if the battery has voltage, if the voltage is too low, then Initially judge the battery has a problem.
Open the middle cover of the battery, there are six to eight small shots inside, take off, see if the electrolyte inside is over the absorbent sponge (if the battery case is translucent, you can illuminate the light on the back of the battery, see).
Buy battery replenisher (usually 3% dilute sulfuric acid, usually 2-3 yuan a bottle, enough for one battery. Use a syringe to inject from the small hole in the middle of the battery until it is half a centimeter over the absorbent sponge. Regular supplementation is beneficial. Extend battery life.
4 After the rehydration is completed, charge the battery for 12 hours, and the charger voltage is 15V. Generally, the charger of the electric fish machine can be used. (If the battery is not powered at all, you can use the high voltage (above 15v, such as 20V, 1-2 seconds after connecting the positive and negative poles, disconnect, so 3-5 times) to activate the battery, and then use 15V charging)
5 After the above repairs, the battery can be basically used. The battery life is 2-3 years (usually used), and it is really not long and easy to break.
Precautions
The power-on time should not be too long when activated.
Portable Projector With Battery
The so-called Portable Projector, also known as pocket projector, mainly through the 3M LCOS RGB three-color projector and decoding technology, the traditional huge projector is refined and portable, making the projection technology closer to life and entertainment. A portable projector with a battery is a projector that does not need to be charged.
The most prominent advantage of a portable projector with a battery is that it can be used directly without being connected to a power source. You can take it to play or travel outdoors. It is very convenient. As long as you charge it well before going out, it will take time to watch a movie. There is absolutely no problem.
If you are traveling for business or personal use, you can indeed try a portable projector with a battery, it will make your life more convenient and better.
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