How long is the battery life of pure electric vehicle

1, Regular inspection: Whether it is a drive vehicle or a new energy vehicle, regular inspection of the car situation is an essential link. If the mileage of a new energy vehicle suddenly drops dramatically during use, it is likely that at least one battery in the battery pack has a problem and should be rushed to the repair shop to deal with it in time.

2,charging time should not be too long: the new energy automobile charging excessive, excessive discharge and charge of avoid by all means is insufficient, which will shorten battery life. In use process, should be based on the actual vehicle condition to determine the charging time and frequency, if electricity meter charging indicator lights up as soon as possible, or lead to excessive battery discharge will affect the life. And charging time should not be too long, otherwise it will form the overcharge, the battery heating. Such as battery charging process temperature exceeds 65 ℃, it shall immediately stop charging, lest produce risk.

3, please tap on start: new energy vehicles in started if slammed on acceleration, can lead to large current discharge batteries, large current discharge prone to lead sulfate crystallization, thus damaging the physical properties of the battery plate, affect the service life. So in this remind all owners, don't try so hard.

4, long time parking charge electricity: well some owners think that, if do not use the vehicle for long time, don't worry about new energy vehicles in the condition of deficient electric park, as long as the car charge well before the next time you use electricity is ok, this is a big mistake. In the condition of deficient electric storage battery, it is easy to appear the sulfuric acid salinization, lead sulfate crystal attachment in plate, great harm to the battery. So have the habit of car main break in time.

5, to prevent exposure and super-cooling: new energy vehicles if exposure in the sun for a long time high temperature environment will make the battery internal pressure increase and make the battery fluid loss, cause cell activity decreased, accelerated aging plate; And if in a cold environment to stop for a long time, will be a sharp decline in the impact on battery life, and will produce adverse effect on battery performance. Many owners reflect in north China, new energy vehicles are driven in winter all dare not open air conditioning, is worried about battery life will be worse.

6, tire pressure has an inseparable relationship with battery: this principle is the same as the traditional drive vehicle, incorrect tire pressure can cause a lot of power consumption, short range, but also reduce the useful service life of tires, and also caused a certain threat on the traffic safety.

New energy car battery maintenance is very important, the battery for new energy vehicles is the key of "heart", according to electric vehicle battery maximum lifespan in 6 years or so, of course, the battery life here is refers to the battery charged capacity decreased to 70%, not 100%.So the owner to secure this 6 years, the daily maintenance is necessary.

In addition to the new energy car battery need maintenance, need maintenance parts are the following:

1, appearance: inspection on vehicle appearance, appearance inspection mainly has light function is normal, wiper strip aging, paint with and without damage, etc.

2, chassis: the chassis is also as usual, mainly to the transmission parts, suspension and chassis fittings check, look to whether loose kuang aging.

3, engine room: check each wire presence of aging in the engine room, empty pick up. Remember, do not wash with water inside the engine room.

4, liquid level: fangdongye, unlike fuel car electric antifreeze used for cooling motor, need to be replaced periodically according to the manufacturer to set time (generally change cycle for 2 years or 40000 kilometers).Other gear oil, also called transmission fluid is oil electric cars need to be replaced more frequently.

5, tire: because the tyre is equivalent to what people wear shoes, is a direct contact with the ground. Because of traffic factors, there will be various fault phenomenon. Mainly to the tire pressure, cracks, trauma and wear etc.

Australia's commonwealth scientific and industrial research organization (CSIRO) yesterday issued a research report, the agency scientists invented a more simple method to enhance the longevity of the rechargeable lithium battery, the agency will this way named "salt bath".

The change method by CSIRO and the royal Melbourne institute of technology university, Queensland university of technology cooperation study found. According to CSIRO researchers, they used material is a kind of ionic liquid, this kind of ionic liquid, also known as room temperature molten salt is a transparent, colorless, tasteless, and flame retardant special liquid, these materials can form a layer of protective film on the surface of the electrode and make a battery when use remained stable. Treatment process and principle for the battery, the battery assembly, the lithium metal electrodes immersed in containing ionic liquid and mixed electrolyte of lithium salt, after this treatment, not only can extend battery life, and can extend battery life, performance and security but also must be enhanced.

Electric cars lithium battery life: the life of lithium-ion batteries

At present various vendors try to research and development of electric vehicle batteries contained basic it is battery (Lithium ion batteries) and fuel batteries, fuel cells due to development costs and maintenance cost is too high (fuel cell maintenance cost would be about three to four times the size of battery), is not suitable for the present stage of the electric car development. So aside, but now used widely in lithium batteries.

General electronic products of lithium ion battery service life is about 5 to 20 years, an average of eight years, and at the current technical level, the service life of lithium ion batteries in electric cars only about 3 to 5 years. When the electric car battery capacity attenuation to the initial capacity of less than 80%, trip range of electric cars will be significantly reduced, when battery capacity attenuation to below 70%, will have to replace the battery. For the present a lot of pure electric vehicles, battery cost about 40% of the total cost of the car or so, that is, replace the battery is equivalent to in less than half of a car.

Pure electric vehicle battery life, if it is a long-life lead-acid battery, in 1.5 2 years, if it is Lithium iron phosphate power battery The theory of life in 7 to 8 years.

Pure electric vehicles (Battery Electric Vehicle, BEV for short), it is completely by the rechargeable battery (such as lead-acid batteries, nickel cadmium battery, nickel metal hydride batteries or lithium ion battery, Lithium iron phosphate batteries Provide power supply of car).Although it is a long history of 134 years, but has been limited to some specific within the scope of application, market is small. The main reason is due to the various types of batteries, widespread price is high, short service life, appearance such as large size and weight, the charging time serious faults.

Is the primary key in the development of electric vehicle batteries, car power battery is the requirements of "low cost", "high capacity" and "high security

"three requirements. Nickel-metal hydride battery unit weight more than twice as many as lead-acid batteries to store energy, other performance is better than that of lead-acid batteries. Prices for lead-acid battery 4-5 times, are vigorously research make it down. Iron battery USES is rich in resources, low price of iron material, the costs have been greatly reduced, also have a factory. Lithium is the lightest, chemical property is very active metal, lithium-ion battery energy storage unit weight for lead-acid battery 3 times ,Lithium polymer battery For four times, and lithium resources is rich, the price also is not very expensive, is a very promising battery. In the nimh batteries and industrialization development of lithium ion battery has obtained rapid development. Electric cars, other related technologies, there is a huge progress, such as: ac induction motor and its control, rare earth permanent magnet brushless motor and its control, battery and energy management system, intelligent and fast charging technology, low resistance tires, light weight and low wind resistance body, braking energy recovery and so on, these technical progress to make electric cars became more and more perfect and practical. Air pollution in big cities in our country can not ignore, car emissions is one of the main pollution sources, we have already had 16 cities listed as the world's most serious air pollution in 20 cities. In China today is an average of ten cars per 1000 people per capita, our country automobile holdings into 10 times will increase, oil imports will become a big problem. So the research and development in our country the electric car is not a temporary short-term measures, but is of great significance and long-term strategic thinking.

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