Feb 21, 2019 Pageview:709
The designed floating charge life of domestic single 12V lead-acid battery is 5-8 years, but it has been completely scrapped within 1-2 years. No matter any lead-acid battery (including domestic, imported), in the use of the total can not escape ahead of the scrap cycle. This is the lead-acid battery invention for more than 140 years, the world recognized problem - lead-acid battery "irreversible vulcanization", it is caused by the battery service life greatly reduced, and the battery scrapped in advance.
Cause and performance of lead acid battery scrap:
There are factors of internal quality of batteries, as well as factors of battery usage and occasions, but more than 80% of them are caused by the electrochemical reaction principle of lead acid battery itself. A battery is a source of reversible reactions between charge and discharge. After discharge, the substances in the battery are converted into crystals called lead sulfate. After charging, lead sulfate is converted into lead and sulfuric acid. However, when the reaction conditions are not complete and sufficient, it is impossible for lead sulfate to be completely transformed, resulting in the accumulation of lead sulfate, thus reducing the amount of substances involved in the reaction. As reflected in the output of the battery, the battery capacity becomes smaller and smaller, and eventually loses its basic function and becomes a waste. This phenomenon of lead-acid batteries is called "vulcanization" (also known as ageing).
Lead-acid batteries gradually produce lead sulfate crystals on the electrode plate during charging and discharging. This phenomenon led to the aging of the battery, its performance is: difficult battery charge and discharge; Battery capacity reduced; Further promote the electrode plate corrosion reduced the service life of the battery, lead-acid battery extended maintenance instrument to solve the above problems. It can make the lead sulfate crystal caused by the failure of the expired battery full recovery. It not only brings huge economic benefits to users, but also saves a lot of natural resources and energy for the country, and reduces the serious impact of waste batteries on the environment
Pollution. The wide application of this technology will bring huge benefits to economy, environment and society.
Due to its stable oxidation state, good safety performance and high temperature performance, as well as its non-toxic, pollution-free, wide source of raw materials and low price,LiFePO4 is considered as a new generation of cathode material that is likely to replace the existing materials. The phosphate anode material represented by it is expected to be beneficial to solve the current problems of poor safety of large-capacity lithium ion batteries and further expand the application space of lithium ion batteries.
lithium iron phosphate batteries are compared with other types of batteries, such as lithium batteries, nickel-cadmium batteries, nickel-hydrogen batteries, etc. 1) high capacity density. 2) more than 2000 cycles of charging and discharging. 3) low internal resistance and low self-discharge rate. 4) no "memory effect". 5) high security
Car batteries for cars, not only can we listen to the radio, the headlights and auto air-conditioner, and one of the major functions, is the work of the automotive starter is also a battery powered, this means that the battery is power off, or broken, the car's lighter boot is problem. So how long will our car battery last? What should notice at ordinary times, can you make its life longer?
When a car starts a fire, the battery discharges to the starter, which turns the engine's flywheel and crankshaft to start the car. Before the start of the car, if we listen to music, listen to the radio, driving lights, car data recorder, electronic handbrake and so on these need power by the battery to power.
When the engine starts up, the output power of the engine will also drive the generator to run. At this time, the output voltage of the generator will be slightly higher than that of the battery. At this time, the battery will change into the charged state.
Our battery storage capacity is actually very limited, two 55W headlights have been so open, probably open for more than 5 hours to a 12V60A battery power consumption. In addition, starter ignition moment to the battery load is also relatively large, but also on the battery life is a factor of greater impact.
How long is the life of lead-acid battery _ as long as the life of lithium battery
We normally use cars, the life of the car battery is about 3 years, if this period, the number of battery power supply ah, load, time more, the life may be shorter. For example, which habits will cause the battery to use more electricity? Like when we stop and turn off the fire and listen to the radio in the car; When the lights go out at night, they forget to turn them off. In addition, when we modify some electrical equipment, such as the auto data recorder, we prefer to take the power directly from the battery, which will reduce the life of the battery. There are frequent start engine, to the battery instantaneous load is also very big, so we have a lot of friends car with stop function, more worried about the life of the battery is the problem.
In fact, with the start and stop of the car battery is more special, called AGM battery, this kind of battery cycle charging capacity than our ordinary use of lead-acid battery capacity is about three times higher.
How long is the life of lead-acid battery _ as long as the life of lithium battery
And most of our cars used to this kind of lead acid battery life is relatively short, about 2~3 years on almost to the life. However, one of the advantages is that the battery electrode is composed of lead and lead oxide, electrolyte is an aqueous solution of sulfuric acid, if the battery can not charge and discharge, can supplement distilled water, also can continue for another 1-2 years.
And the other is called maintenance free battery, listen to the name seems to be more cattle, yes, its biggest advantage is longer life than the lead acid battery, no maintenance, no need to add distilled water, can be said to be one-time, use up to change. Its life is generally twice as long as the ordinary battery.
How long is the life of lead-acid battery _ as long as the life of lithium battery
So, to sum up, how can we extend the life of our batteries?
First of all, we should get rid of our careless habits, such as forgetting to turn off the headlights after parking. In addition, as far as possible to use the car in the event of the car lights off a variety of electrical equipment, radio ah, ah, what the headlights. Also include, in the case of flameout try not to use external electrical equipment, will harm the battery, affect the life.
Lithium battery. "Lithium battery" is a kind of battery with lithium metal or lithium alloy as negative electrode material and non-aqueous electrolyte solution. In 1912, lithium metal batteries were first proposed and studied by gilbertn.lewis. In the 1970s, m.s. willingham proposed and began to study lithium-ion batteries. Due to the chemical characteristics of lithium metal is very lively, making the processing, preservation, use of lithium metal, the environment is very high requirements. So lithium batteries have not been used for a long time. With the development of science and technology, lithium battery has become the mainstream.
Lead acid battery (VRLA) is a kind of battery whose electrode is mainly made of lead and its oxides, and whose electrolyte is sulfuric acid solution. When lead-acid battery is discharging, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead. Under charging condition, the main components of positive and negative electrodes are lead sulfate.
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