What kind of battery is used in electric car batteries

Rechargeable batteries, nickel-metal hydrogen rechargeable batteries, lithium rechargeable batteries, lead-acid batteries, solar cells, gel batteries, lithium iron phosphate batteries.

1,Battery is a chemical and therefore has a certain service life. Batteries such as dry batteries(including ordinary alkaline batteries) can not be recharged. Of course, the service life is only once. For rechargeable batteries, we generally measure the length of service life by the number of recharges. The recycling life of nickel-cadmium batteries is about 300-700 times, the rechargeable number of nickel-metal hydride batteries is generally 400-1000 times, and that of lithium-ion batteries is 500-800 times. The service life of rechargeable batteries is not only affected by the raw materials used in the production of batteries, but also has a close relationship with the charging and discharging methods and actual use of batteries.

2, the reason why the battery life of electric vehicles is premature: the owner has no awareness of battery maintenance, causing serious battery vulcanization damage. Must wait until the battery can not run before coming to repair maintenance, this time repair difficulty increases. In fact, 6 months of maintenance, life naturally extended a lot, but the owner does not have this awareness. Battery damage, mostly starting with excessive water loss caused by chargers.

3, charger killer. Divided into inferior chargers and aging chargers, these battery killers generally play a killer role after 8 months of batteries. The reason for this is that the new battery meets the taste of these battery killers. As the battery ages, the battery can not meet the requirements of the killer. By June each year, the battery quickly loses water and deforms.

4, cycling does not lose power, natural long life. The new battery can be charged every time it is used above a red light, but it can not run at a loss. Each time it loses power, its life span is less, and the new battery that loses power 10 times is also quickly scrapped.

Upstairs said the Tri has only been tested in recent years. I'm sure you haven't worked with the battery industry in a long time

At present, the main products on the market are ternary materials, lithium manganate, lithium iron phosphate.

Poor safety of ternary materials

Manganese lithium batteries fail fast, iron lithium is heavy, and three yuan is unsafe.

Each has its own characteristics

The main part of the motorcycle is ternary material.

The main source of electricity is lithium iron.

The most expensive price for ferric lithium is three yuan and then lithium manganese.

Combined mass, volume, weight, price considerations

Poor safety of ternary materials

Manganese lithium batteries fail fast, iron lithium is heavy, and three yuan is unsafe.

Each has its own characteristics

The main part of the motorcycle is ternary material.

The main source of electricity is lithium iron.

The most expensive price for ferric lithium is three yuan and then lithium manganese.

Combined mass, volume, weight, price considerations

Ternary should be the first choice.

First, the current market of electric vehicle battery lead-acid batteries is still higher than that of lithium batteries, or the reason is that the cost of lithium batteries is still relatively high. Therefore, in the design of the existing "lithium tram" products, the capacity configuration of lithium batteries is reduced to reduce the implementation cost of the entire vehicle, which makes the models of the existing "lithium tram" products too simple.

Lead acid batteries and lithium batteries can not simply be said to be good or bad. They have their own advantages and disadvantages and are suitable for different groups of people in need. At present, lithium electric products on the market are mostly "motorcycles" and their range is not very far. However, such long-term extensions as four-wheel electric vehicles and four-wheel elderly electric walkers are still more suitable for "lead-acid batteries."

Second, lithium ions mainly rely on lithium ions to move between positive and negative poles to work. During the charging and discharging process, Li + is embedded and de-embedded between the two electrodes: When recharging the battery, Li + is de-embedded from the positive electrode, the negative electrode is embedded through the electrolyte, and the negative electrode is in a lithium-rich state; When discharging, it is the opposite. Lithium-containing materials are generally used as electrodes for batteries, and graphite is the most negative electrode at this stage. Compared with lead-acid batteries, lithium batteries have the advantages of light weight, large specific capacity, and long recycling life. They are used as electric mobile power supplies for the elderly. They are not only lightweight and portable, but also help the vehicle's products. "Lightweight and reduction" design.

Third, the electrodes of the lead-acid battery are mainly made of lead and its oxides, and the electrolyte is a sulfuric acid solution. Under the charge state of lead-acid battery, the positive electrode is mainly composed of lead dioxide, and the main component of the negative electrode is lead; Under the discharge state, the main components of the positive and negative poles are lead sulfate.

The four or two types of batteries are not the same except for energy storage devices. Lead acid batteries are safer and cheaper, but the energy density is lower than that of lithium, so the lead acid batteries are larger. At this stage, the excellent properties of existing lead-acid batteries and lithium batteries can be combined for transformation and upgrading before the breakthrough in battery(energy storage) technology can be achieved, that is, "low-cost, high-performance" batteries can be put into commercial use. As a major research topic for the present and even the next period. It is believed that this will have a clearer direction for the development of the electric scooter industry in the future, even the entire electric scooter industry.

Lead acid batteries for General electric vehicles. Mainly because of its high value for money.

When it comes to endurance, the other conditions are exactly the same, and the battery capacity is the same. It may be that lithium is a little better. Why, because lithium is lighter, the weight of the entire car is lighter, and of course it runs a little farther.

But I still recommend lead acid. The main reasons are:

One, cheap. In general, a group of lead acid only a few hundred, a group of lithium electricity, casually more than a thousand nearly two thousand.

Two, safe. Remember the year before last, Nanjing that woman riding a lithium-battery electric car, because it was too hot, the lithium-electric explosion behind the car seat, blew the ass off the news?

Three, lead acid is enough. The current lead acid generally has a duration of 50 to 60 kilometers, which is sufficient for home use. Lithium is really unnecessary.

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