How to maintain a lithium-ion battery for new electric vehicles?

　　Author ：Iflowpower – Portable Power Station Supplier

When the electric bicycle lithium-ion battery is slowly increasingly common in the market, many people are not very clear about the charging method of electric car lithium-ion batteries. How to charge and maintain lithium-ion battery electric vehicles? 1, the charging method of new batteries About the activation of lithium-ion batteries, this is an old topic, and some consumers think that the battery is to be activated. Almost all salespersons say this, the front three times of charging is 12 hours, which is obviously the statement that the nickel battery (such as nickel-cadmium and nickel hydrogen) continues.

So this kind of saying, you can say that the beginning is misuse. The charging and discharging characteristics of the lithium-ion battery and nickel battery have a very big difference, and you can tell you very clearly. All serious formal technical information I have been inspected emphasizes that the charge and over-discharge will pairs of lithium-ion batteries, especially Liquid lithium-ion battery causes huge damage.

So is the battery is activated? Answer I is affirmative, to be activated! However, this process is done by the manufacturer, not related to the user, the user has no ability to complete. The true activation process of the lithium ion battery is such that the lithium ion battery case is irrugation electrolyte-sealing-formation, which is constant pressure charging, then discharges, so that the electrode is fully infiltrating the electrolyte to sufficiently activate until capacity Up to the requirements, this is the content of the activation process, that is, the lithium-ion battery to the user is already activated after the factory. In addition, some of which are activated by the battery to be in an open state.

After activation, the seal will be sealed, unless you have a battery production equipment, otherwise how to complete the battery from the factory, then sell, then to the user's hands, it will experience a period of time, One month or months, in this way, the electrode material of the battery will passivate, and it is recommended that the battery is mostly used for the first time for the third complete charge and discharge process, which is to quickly eliminate the passivation of the electrode material. Most I high-efficiency. But this process should not be 12 hours, it should be full.

It can also eliminate passivation for a period of time. Therefore, the user's new lithium-ion battery is not particularly method and apparatus during activation. In addition, the lithium-ion battery or charger will automatically stop after the battery is full, and there is no so-called trickle charging for nickel electric chargers.

That is, if your lithium-ion battery is full, it is also white charge. And we can't guarantee the characteristics of the battery's charge and discharge protection circuit never change and quality, so your battery will perhaps the long-term dangerous edge. This is another reason why us oppose long charging.

After the charger exceeds a certain time, if the charger is charged, the system will not only stop charging, but will also start the discharge - charging cycle. Perhaps the manufacturer of this practice has its own purpose, but it is clear that the life of the battery is unfavorable. At the same time, long-term charging is long, often in the night, while in my country's power grid, the voltage in many parts is relatively high, and the fluctuations are large.

As mentioned earlier, the lithium-ion battery is very delicate, it is much more resistant to the fluctuations in the charge and discharge, so this also brings additional dangers. 2. When should normal in normal use? Because the number of charge and discharge is limited, the electricity of the lithium-ion battery should be charged as light as possible.

But I found a experimental table for lithium-ion battery charging cycles, and the data about cycle life is listed below: Circulation Life (10% DOD):> 1000 cycle life (100% DOD):> 200 times where DOD is discharge Depth English abbreviation. As can be seen from the table, the number of chargeable times and the discharge depth, the cycle life of 10% DOD is much longer than 100% DOD. Of course, if it is equally contrary to the relative total capacity of actual charging: 10% * 1000 = 100, 100% * 200 = 200, the latter's complete charge and discharge is still better, but the previous netizen's saying should be amended: in normal In the case, you should reserve the principle of recharging the remaining electricity of the battery, but if your battery is expected to stick to the whole day, you should start charging in time, of course, if you want to back Charger to the office is also.

I believe that most consumers have heard that the life of the lithium-ion battery is 500 times, 500 charge, exceeding this number, the battery is ending, many friends in order to extend the battery life, each time the battery is complete When it is exhausted, charging is carried out so that the life of the battery really has an extension use? Answer I is negative. In fact, there is a conceptual error, the life of the lithium-ion battery is 500 times, refers to the number of times of charging, but a cycle of charge and discharge, such as 40%, for a while, after a while, it is charged 20%, After using it, I will charge 30%, and then 20% in the 20% next time, that is, the total of 10% of electricity is added, and a total of a charging cycle is completed. After that, it is the next cycle.

A lithium battery only used half of the electricity in the day, and then fully charged it. If so, in the second day, it is charged with half, and the total is charged twice, which can only be counted as a charging cycle, not two. Therefore, it is usually possible to complete a cycle several times.

Each time a charging cycle is completed, the power will decrease. However, the reduction is very small, and the high-quality battery will still retain 80% of the original electricity. Assuming that the amount of power in a complete discharge is Q, a battery has a period of 500 times, then its total power supply is 500q, if we charge the power to half, set the charge of charging is A, simply solve, 1 / 2q * a = 500Q, A should be 1000 times.

So about battery life, we can measure the cycle, but never use the number of times to measure. The principle of battery remaining electricity is not to be tired to extreme. One statement on the same flow of long charging, is to try to finish the power of the machine's battery, the most I use it automatically.

This practice is actually just the practice of nickel battery, the purpose is to prevent memory effects, unfortunately, it is also circulating on the lithium-ion battery. Some people have appeared after the warnings of the machine battery, still not charging, continuing to use an example of automatic shutdown. As a result, the machine in this example has no response in the later charging and boot, and has to send a customer service.

This is actually because the battery causes the voltage to be too low due to excessive discharge, so that there is no normal charging and power-on conditions. 3. Attachment of the correct approach to the lithium ion battery, the most important tips for the charge and discharge problem in the use of lithium-ion batteries are: 1, according to the standard time and program, even the top three will be carried out; 2, When the machine is too low, it should be started to start charging in time;.

If you insist on the three 12-hour long charging method of 12 hours, it is actually not effective. Therefore, all practices that pursue 12 hours of long charging and use lithium-ion batteries to automatic shutdown are erroneous. If you used to do it according to the wrong statement, please correct it in time, maybe it is not too late.

How long is the lead-acid battery charging how long is the electric car battery charging how long is the most I good? Electric cars are contrast, rather than using bad, visible charger and battery matching and grasp charging Time importance. The following is the most I good way to charge the electric car battery charging. The correct use of the charger affects only the feasibility and service life of the charger itself, and it will also affect the life of the battery.

When charging the battery using the charger, first plug in the output plug of the charger, and then insert the input plug. Charger needs moisture during use, moisturizing, and placed in a well ventilated place. When the charger is working, it has a certain temperature rise.

Please pay attention to heat dissipation, usually the charging time is 7-8 hours, the use state of the battery is different (for example: using electric vehicles to discharge the battery by 30%, the charging time can not be 78 hours , Should stop charging after the charging indicator is turned green for 1 hour. If you continue charging, you will cause overcharging). When charging, the power indicator of the charger displays red, and the charging indicator is also shown as red.

After full, the charging indicator is green. Stop charging 1-2 hours after the indicator is turned green after green. When the charging is stopped, please unplug the input plug of the charger, and the output plug of the electric appliance.

Normally, excessive discharge and excessive charging of the battery are harmful. Therefore, charge diligently, do not charge. The battery life has a big relationship with its discharge depth.

Lead-acid battery is particularly afraid of loss of electricity. Loss battery, please charge as soon as possible. With regard to long-term battery, you should charge the battery once every 1 month to compensate for the loss of self-discharge power during battery storage.

The charger belongs to a more precise electronic device, so pay attention to anti-vibration in use. Try not to carry with the car, if you do it, you should pack the charger with the damper material and place it in the toolbox in the car, and should pay attention to rain, moisture-proof. .