how many is Lithium battery charge put number of times？

The ternary lithium battery life

Lithium battery life refers to the battery in use after a period of time, capacity attenuation for the nominal capacity (room temperature 25 ℃, standard atmospheric pressure, and in the battery capacity of 0.2 C discharge) of 70%, can think life is terminated.In the industry generally to lithium battery full cycle times to calculate the cycle of life.In the process of using, lithium battery irreversible electrochemical reactions can occur within the led to the decrease of the capacity, such as the electrolyte decomposition, the inactivation of active material, is the collapse of the cathode structure embedded in lithium ion and reduce the number of embedded off and so on.Experiments indicate that leads to a higher ratio of discharge capacity attenuation, faster if the discharge current is low, the battery voltage will close to balance, can release more energy.

Ternary lithium batteries, the theory of life about 800 cycles in the commercialization of rechargeable lithium batteries belong to medium.Lithium iron phosphate is about 2000 times, and lithium titanate reportedly can reach 10000 cycles.The current mainstream of battery manufacturers in the production of three yuan batteries specifications promised more than 500 times in the book (under the condition of standard charge and discharge), but the batteries in group with battery pack after due to the consistency problem, mainly is the voltage and internal resistance can't be exactly the same, the cycle life of about 400 times.Manufacturers recommend using SOC window is 10% ~ 90%, it is not recommended for deep cycles, or you will to cause irreversible damage to the battery is the cathode structure, if can be calculated by shallow shallow filling, cycle life of at least 1000 times.In addition, the lithium battery if often to devolve electricity at high rate and high temperature environment, the battery life can break down to less than 200 times.

Hebei xin long-term manufacturing power battery pack, the ternary lithium battery,Lithium iron phosphate batteries iron, manganese acid lithium battery,Lithium ion batteries and so on.Products wide range of high quality, xin power is the top domestic battery brand.

In recent years, with the rapid growth of new energy automobile market, China Power lithium battery the market has gained rapid development.According to statistics, 1-2016, April shipments of 3.42 Gwh power battery in China market, was 2.38 times of high growth over the same period last year, is expected to reach 2016 the year China power battery market shipments around 30 Gwh, year-on-year growth will be more than 90%.

According to different materials, the existing measuring power battery in the market at present is mainly divided into batteries, lithium iron phosphate ternary lithium battery (including NCA and sliding), manganese acid lithium pool, pool cobalt acid lithium, nickel metal hydrogen batteries, lithium titanate pool, etc.lithium iron phosphate battery is currently the mainstream battery type in Chinese electric vehicle market, but in recent years, the market growth is significantly less than the ternary lithium battery.April 1, 2016, according to one estimate, China market shipments of lithium iron phosphate battery is 2.6 Gwh, year-on-year growth of more than 2 times, accounting for 75.3% of the overall market.Ternary system battery market shipments 771.51 Mwh, compared with the same period last year growth of up to 3.47 times, has increased to 22.6%, the proportion in the overall market gradually become the star product in the Chinese power battery market.

This watch batteries quality and material, good batteries can put cycle to nearly 2000 times, the general is 500-800 times, bad to say, may be hundred times.Generally, such as ternary material is around 4.2 V, as of discharge voltage at around 2.8 V, the voltage of the lithium iron phosphate is lower.

As for the capacity, is good to do the highest like. 3600 mah. The domestic general is 2000-2600 mah

Hong fu lithium electricity of the science and technology

The use of lithium ion battery, pay attention to three things:

1, how to new battery

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 3-5 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.New lithium battery in the process of activation, so users don't need special method and the device.Is so in theory, not only from the point of my own real a practice, from the start with a standard method to charge this way of "natural activation" is the best.

For the "activation" of lithium-ion batteries, many say: charging time must be more than 12 hours, if you do this 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 liquid lithium ion battery 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.

In addition, lithium battery or charger will automatically stop after the battery, there is no nickel electric charger of the so-called "trickle charging for 10 hours.That is to say, if your lithium battery, after full on the charger is Bai Chong.And none of us there is no guarantee that the battery charge and discharge protection circuit will never change and quality according to the features of foolproof, so your battery will be on the brink of danger for a long time.This is another reason we object to a longer charge.

In addition to some machine, charging after more than a certain amount of time, if you don't go to remove the charger, the system does not stop charging, will also begin to discharge - charging cycles.Maybe this vendor has its purpose, but obviously is unfavorable for the life of the battery.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 can not be ignored is the lithium battery is also not suitable for discharge, over discharge to the lithium battery is bad also.This leads to the following questions.

2, when in normal use should start charging

Because the number of charge and discharge is limited, so should be lithium battery electric light recharging as much as possible.But I find a lithium ion battery charge and discharge cycle experiment table, the cycle life of the data are 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, 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 insist on the whole during the day, it should start charging in a timely manner, of course, if you are willing to carry the charger to the office when BieLun again.

And you need to charge for the upcoming is expected to lead to the communication of the most important events in the busy, 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 "as far as possible to get all the machines with battery power, had better 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.Once someone because machines low battery warning, without a charge to continue using has been used examples of automatic shutdown.The results in this case the machine in the later charging and boot no reaction, had to send to the maintenance of the service.This is because the battery voltage is too low, caused by the excessive discharge that do not have normal charging and boot conditions.

3, on the right way of lithium-ion batteries

In the aggregate, and 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 machine power is too low when prompted, should try to start charging in a timely manner;

3, the activation of the lithium battery does not need special method, the machine in normal use lithium battery activation naturally.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 hours long use 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.

The page contains the contents of the machine translation.