Detailed analysis of repair and protection of lead-acid batteries
The reasons for the scrapping of lead-acid batteries can be roughly divided into three types: one is caused by the frequent overcharging or over-discharging in the absence of water. For example, a taxi driving day and night, the battery often works in the absence of water, the generator is floating on it during driving, causing the battery to heat up, the pole plate is bent and the battery is scrapped; when the battery is overcharged, the electrolyte will When the temperature rises, it will be like boiling. The electrolyte that is tumbling up and down washes the plate, which will cause the lead powder to fall off. After a long time, the lead powder that has fallen off is accumulated, and the plate is folded when the plate is hit. Shorted, causing the battery to be scrapped. The traditional lead-acid battery with sulfuric acid solution continuously washes the plate during the running of the vehicle, and it is easy to cause the lead powder to fall off. This kind of scrapped battery can't be repaired. The battery that has been scrapped from the taxi has More than 90% can't be repaired. The second type is a counterfeit product battery, a refurbished battery, and a brand-name battery that is not produced according to national standards. The plates and solutions of this kind of battery are extremely defective. They can't talk about quality. They can give some power in the new time, but they can't last for a long time, so they can't be saved. The third case is a fully sealed lead-acid battery, in which a separator is sandwiched between two plates, such as wool felt, which is filled with electrolyte. The battery plate is not detached by impact, and the reason for its scrapping is often caused by the phenomenon of "irreversible vulcanization" on the electrode plate. This white crystal of lead sulfate produced on the electrode plate makes the plate The effective area is getting smaller and smaller, so that the battery capacity is getting smaller and smaller, that is to say, the electric bicycle is run for 40 kilometers, and then it can only run for 20 kilometers. The last one kilometer can't run, and it can only be scrapped.
There are many reasons for the lead-acid battery plate to produce lead sulfide crystal. The long-term is that the battery is not used for a long time. For example, the new car of the automobile manufacturer has not been sold for a long time, and it is parked in the garage for a long time. When the car was sold, the battery was broken, because the lead plate had a large area of ​​lead sulfide crystals. If the private car, the owner has been on a business trip for a long time, after returning, he will find that the car can't catch fire and can't move. Another serious over-discharge will also cause the lead-acid battery plate to produce lead sulfide crystals in a large area and be scrapped. For example, forgetting to turn off the lights and driving it all night is fatal to the motorcycle battery. Dissecting these fully sealed lead-acid batteries, it can be seen that the white lead sulphate crystal has tightly bonded the two plates together, and the pull-pull does not open. At this time, there are two volts per cell (12 volt battery). It is composed of 6 grids in series) and is now close to zero volts.
Whether it is a sealed or unsealed battery, it can be recovered if it is scrapped for the above reasons. Modern pulse technology can make this "irreversible vulcanization" phenomenon reversible. March 15, 2005, by the German engineer Bingle and proud of Chi power engineer Ray After six months of research and development of next-generation battery protection products: storage battery repair instrument equipment, has done more than six months of actual test, the effects were very good, is dissected The repaired fully sealed lead-acid battery shows that the white lead sulphate crystal on the plate has basically disappeared, and the battery voltage has risen from near zero volts before repair to the normal battery voltage. At this time, it can be charged and discharged as usual. By charging and discharging it, it will find that its capacity has recovered to 90% or even more than 100%.
According to US data, the life of batteries repaired with this pulse technology can be extended by more than five times. We have not done this test, and we do not dare to estimate the quality of our domestic batteries, but I want to be regular. For electric bicycle batteries produced by the factory, it is safe to double their life after repair.
In order to extend the life of lead-acid batteries, in 2005 we also developed battery protectors, battery life extenders, which are battery-powered electronic products connected to the battery at both ends, it is low energy consumption. Since each crystal must have a crystal nucleus before it is introduced, if it is not, it will not form a crystal. The principle of the electronic product is that the pulse wave is continuously applied to the electrode plate, so that the crystal nucleus cannot be formed, and the white lead sulfate crystal cannot be produced. Generally speaking, the pulse wave can continuously wash the plate, so that the battery can Give enough power. Car owners who use this type of protector feel that the battery is very good. In the northern regions, due to the cold weather, cars in the morning are often unable to catch fire. If such protectors and life extensions are used, this kind of malaise can be eliminated.
Carbon Black Processing Machine
Carbon Black Processing Machine,Carbon Black Production ,Silicone Material ,Silicone Rubber Compound
Rubber Recycling Machinery Co., Ltd. , http://www.nbpyrolysismachine.com