What disadvantages does fast charge have to battery?

As a product of new era, most consumers are unfamiliar with new energy vehicles. Even though more and more people are prepared to buy new energy vehicles, but they may not really understand it. For example: does fast charge damage the battery? Is there charging pile on the highway? Can new energy car batteries be recycled? People who want to know the answer please read this article carefully!

What is the harm quick charge the battery?

Everyone heard the electric car has two kinds of fast and slow filling difference, also all know quick charge than slow filling, but where is the essential difference between them?

Fast and slow filling filling concept: fast and slow filling is a relative concept, general quick charge for the high power dc charging, half an hour can be filled with 80% battery capacity, slow charge refers to the communication charging, charging process must be six to eight hours.

Quick charge dc charging voltage is generally greater than the battery voltage. For example, BYD qin battery voltage of 400 v dc, so should be to more than 500 v dc charging voltage, Qin KWH of power for 13, so it should be able to do 32.5 A charging current, namely fast charge power for P = UI = 500 v * 32.5 A = 16.25 KW.

Slow filling is put in the home of 220 v ac socket charging, for reasons of battery is unacceptable communication charge so slow charge is 220 v alternating current into direct current (dc) to step up to the battery charging voltage, such as the 500 v direct current, with the 500 v direct current to the battery.

Which can be concluded: slow filling maximum charging power is about P = UI = 220 v * 10 a = 2.2 KW.Quick charge 16.25 KW of power, therefore, is greater than the slow charge 2.2 KW, so we can find quick charge is much, much faster than slow filling.

Small slow filling the advantages and disadvantages: current, charging time is long, the charger and the installation cost is low;Can make full use of the off-peak electricity to charge, reduce the charge cost;Can charge the battery on the depth of the battery, battery charging and discharging efficiency, extend battery life.

Household slow filling alternating current (ac) : as the average household 220 v ac socket for 10 a and 16 a, to be on the safe side slowly filled the charging current are generally less than 10. A, calculated in accordance with the standards of 10 a.

Quick charge advantages: short period of time to rapid repairing electric battery, charging speed; Charging equipment installation requirements and the cost is higher, the current voltage is higher, in a short period of time the battery impact is bigger, long-term rapid charging affect battery life.

The harm of quick charge: The lithium battery of quick charge at the expense of the cycle of life at the cost of batteries, because the battery is produced by electrochemical reaction device of electric power and charging is inverse chemical reactions occur, and quick charge to input large current to the battery in an instant, often use quick charging mode will reduce the reduction ability of batteries, reduce the battery charge and discharge cycles.

In brief, quick charge for battery quality requirement is very high, and the reaction conditions of large flow battery is too harsh, deviation from the equilibrium state is far, have greater losses to the life of the battery, safety factor will be significantly lower, so there is no necessary to do as little as possible. And slowly we can avoid these problems very well.

How to correct speed cycle recharge?

Normal driving, if electricity meter indicates red and yellow lights, you should charge; If only the red light, should stop running, charging as soon as possible, or excessive battery discharge will shorten its life seriously. Charge after running time is shorter charging, charging time should not be too long, otherwise, it will form the overcharge, the battery heating. Excessive, excessive discharge and recharge will shorten the battery life.

Highway charging pile

According to plan, by 2020 the national grid company public fast charging station will be built in the national total, 10000, 120000 charging piles, universal coverage lu of the Beijing-Tianjin-Hebei region, Yangtze river delta region all highways and other parts of the city's main city quick charge network, covered a total of 202 city, 36000 km highway. By 2017, Beijing area built 5 km radius of basic public charging network city.

Highway special card: highway state grid of charging piles need to use dedicated rechargeable card "highway", ordinary rechargeable card cannot be used in the city. Hold highway dedicated rechargeable card, basic can be done to charge. To handle the way: the owner can deal with to specify business hall "highway dedicated rechargeable card".

If there is no time to deal with to branch business hall, can also be at least 45 minutes ahead of schedule, up to 3 days in advance to dial 95598 customer service telephone, make an appointment to the specified charge service charges, highway charging piles of staff in 45 minutes, on-site guidance owner to charge.

Is the realization of the rights of the new energy vehicles in electricity?

Current electric vehicles in the electric has not reached a unified standard in the industry, the industry of electric vehicles is common in electricity the move some of the differences of position. Specific as follows:

1. The problem of battery model: the existing electric car brand on the market is more, various models of battery models with different manufacturers, not general between each brand electric cars.

From the perspective of the demand of development, the future is not just a taxi, electric cars have private in electricity demand, want to let private cars also enjoy in electric service, will have to solve the problem such as battery charge specifications and standards. Should speed up the unified standard specifications and charge of the battery, lays the foundation for the future of private cars in the battery.

Reserve 2) batteries: within the third ring road in Beijing downtown every gas station service out 300 cars a day on average, if according to the daily service in power station 200 electric cars, a charge in power station need at least 100-100 battery reserves.

Different brand car battery material is not same to EV200 with BYD E6, for example, EV200 USES is South Korea SK corp the ternary lithium battery, while the E6 USES is independent research and development production of ET - iron battery POWER, not general, each battery need to reserve.

3. The problem of universal standards, promote the national electric cars popular in power station construction, electric cars across the city to use a surprise, but different brands of electric vehicles to replace the battery is not completely the same way, automatic electric system cannot change.

At the same time of building in power station, should formulate unified in electric method and standard, make it possible for cross-regional in electricity. Electric cars in the city are spreading quickly, as in the construction of power station, electric taxis or will replace fuel taxi. But in order to achieve universal access to electric cars, the government should speed up for an electric car battery, charging standards and specifications in the standard unified, the popularity of private electric cars for the future and lay a foundation across the land use.

Can new energy car battery recycling?

In our country power battery research mainly focus on improving its safety performance and service life, and for recycling link is relatively small. On the arrival of the new energy automobile blowout development relevant experience of other countries for reference to establish a set of perfect power battery recycling system is very necessary.

The study of power battery is comprehensive, has been formed the perfect business model. Gm's cooperation with ABB experiment has obtained certain achievements, the Chevrolet volt battery collection of feedback to the electricity grid, finally realizes the power to homes and businesses. After trying to integrate the modular device, can support 3-5 home two hours of electricity in the United States. In the near future, similar to some families and small commercial buildings provide standby power during blackout. At the same time, the price discount store electricity for peak time to use, also can make up for in wind power, photovoltaic and other renewable energy power generation gap.

Germany, battery production and importers must be registered with the government, the dealer to organization withdraw mechanism, at the same time the user has an obligation to discarded battery to the designated agencies.

The producer responsibility system of implement and improve the battery recycling system is established. At the same time, Germany's environment ministry funding for two power battery recycling demonstration projects, study of waste batteries for recycling use.

Japan is popular the treatment method is to scrap the lithium-ion batteries used to form a solar power generation system, sunny, solar panels generate electricity output power to the electric storage system, battery system for household appliances power supply; If encounter cloudy day or night, may choose to buy electric power company in electricity price low period of electricity to the battery charging system, and in high price time only take electricity from the battery system.

Buy used on electric car?

At present, each big cities used new energy vehicle market is almost a "blank", "priceless" and "city". But as more and more the number of electric cars, car value, waste battery recycling problem of vehicles, the relevant government departments, and the manufacturer will think good countermeasures in advance. But have to admit, time-sharing lease or private purchases, new energy vehicles has been more and more involvement in our lives. Second-hand car trading market from personnel of course of study points out: not willing to buy second-hand deny, new energy vehicles because the market is buyers' demand is too low, not good.

The electric car second-hand market situation

The status of secondhand new energy vehicles: firstly, the dealer is not willing to buy, and the price changes frequently. Secondly, the subsequent question is more complex, maintenance is very limited, and it can only be booked in the 4S shops, which is not convenient for the consumer that is not in the surrounding. Thirdly, the cruising ability is worth considering. After all, new energy vehicles don't use engine but motor, and the cycle life of the battery is a barrier. The quality of a used car with this performance is difficult to be guaranteed.

The page contains the contents of the machine translation.