Activation of lithium-ion battery and charge-discharge teaching method

Introduction: When using lithium-ion battery, something should be paid attention that after a period of standing time, it becomes dormant, while the capacity is lower than normal at this time and service time is shortened. But lithium-ion battery is easy to be activated. As long as the battery is charge-discharged after 3 to 5 times, it can be activated and regain normal capacity. The characteristics of lithium-ion battery itself determine that it hardly has memory effect.

That should be paid attention to in using lithium battery, battery placed after a period of time to enter a dormant state, capacity is lower than normal at this time, use time is shortened. But the lithium battery is easy to activate, if after 3 to 5 times the normal charge and discharge cycle can activate cells, back to normal capacity. Due to the characteristics of lithium battery itself, determines its almost no memory effect. So new lithium-ion batteries in the user's phone in the process of activation, is don't need special method and the device. Is so in theory, not only from my own practice, from the start with a standard method to charge this way of "natural activation" is the best.

Correct lithium-ion battery activation and the charge-discharge method

For the "activation" of lithium-ion batteries, many say: charging time must be more than 12 hours, if you do these three times, in order to activate the battery. This "the first three-time charge to charge more than 12 hours", apparently from nickel battery, such as nickel cadmium and nickel metal hydride) continue down. So that, the outset misinformation, so to speak. Lithium-ion and nickel batteries charging and discharging characteristics have very big difference, and can be very clear tell you, I have looked at all serious formal technical data will emphasize overcharge and over discharge of lithium batteries, especially in the liquid Lithium ion batteries Caused great damage. And charging in accordance with the best charging standard time and standard methods, especially don't charging for more than 12 hours long. Usually, instruction for use on the introduction of charging method, is the standard of charging method.

At the same time, the charging takes a long time long, often need to be done in the night, and to power grid in China, many places are relatively high voltage in the night, and volatile.Have already said, in front of the lithium battery is very delicate, it is better than nickel electric resistance to fluctuation in charging and discharging ability worse, so it brings the risk of additional.

In addition, another aspect cannot be ignored is the lithium battery is also not suitable for discharge, over discharge to the lithium battery is bad also.

Tools/raw material

Lithium battery, nickel metal hydride batteries, lithium battery chargers, nickel metal hydride battery chargers

Steps/methods

When in normal use should start charging

On the BBS often can see this statement, because the number of charge and discharge is limited, so the battery should run recharging as much as possible. But I find a lithium ion battery charge and discharge cycle experiment table, the cycle life of the data is listed as follows:

Cycle lifetime (10% DOD): > 1000 times

Cycle lifetime (100% DOD): > 200 times

The DOD is the abbreviation of the depth of discharge. From the table, but the depth of the number of charging and discharging, 10% DOD cycle life than 100% DOD much longer., of course, if the conversion to the actual charge relative to the total capacity: * 1000 * 200 = 200 = 100100%, 10% of the latter to fully charge and discharge is still relatively good, but in front of the net friend of the idea to do some correction: under normal circumstances, you should have a reservation, according to the principle of battery remaining power run out to refill charging, but if your batteries in your expected to 2 days can't stick to two hours of time, you should start charging in a timely manner, of course, if you are willing to carry the charger to the office when BieLun again.

You need to charge for the expected inconvenient or conditions are not allowed to charge, even when there are a lot more than battery, so you can just charge in advance, because you didn't really lose "1" time charge cycle life, namely "0. X", and often the x will be small.

The principle of battery remaining power run out to refill is not want you to extremes. As widespread and long charging a saying that is "try to put the power of battery run out, it is better to use automatic shutdown”. The practice of this kind of practice is just nickel batteries, purpose is to avoid the memory effect, unfortunately it also in lithium battery of circulating on today. Due to the battery voltage is too low, caused by the excessive discharge that do not have normal charging and boot conditions.

The correct method of approaching lithium-ion battery

It boils down to, I the most important problems of lithium battery charge and discharge in the use of tip is:

1, according to the standard time and procedure charging, even so will three times before;

2, when the power is too low, should try to start charging in a timely manner;

3, the activation of the lithium battery does not need special method, lithium battery activation naturally in normal use. If you are determined to use of "three times before 12 hours long charging activation" approach, in fact there will be no effect.

Therefore, all the pursuit of 12 ~ 16 hours long uses the lithium battery charging and the practice of automatic shutdown, are wrong. If you've made according to the error, please correct in time, maybe it is not too late.

Attention

Under the condition of a good quality of protection and control circuit of lithium battery, the protection of lithium-ion battery can be guaranteed. So, the understanding of charging rules is the key. In some cases, concessions can be considered. For example, if you think the battery must be charged before sleeping at night, you can also start charging before going to bed. The key of the problem is that you should know what is the right thing to do, and do not deliberately do something according to error.

The page contains the contents of the machine translation.