some data about lithium batteries

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In the mobile phone, both from a technical point of view or from the assessment of price considerations, the is very important. Value today, the market is sales of mobile phones, used batteries has been completed from a nickel to cell lithium Inspiron 6000 transition. Perhaps it is because of cell phone had just completed a nickel to cell lithium revolution, the people's awareness of lithium batteries are not uniform and in many cases incorrect to say and practice is quite popular. As a result, know a little knowledge of lithium batteries, lithium batteries have the right to use it is very necessary.

First, the type of lithium:

At present, the market used rechargeable batteries are nickel metal hydride (Ni-MH) and lithium-ion (Li-ion) are two types. Lithium-ion batteries have been in mass production of liquid lithium-ion (LiB) and lithium-ion polymer (LiP) two. Therefore, in many cases, the mark on the Li-ion and lithium-ion is a must. But that is not necessarily liquid lithium-ion, is also possible that the polymer lithium-ion.

Lithium-ion is a lithium Inspiron 9300, Inspiron 9400 improved version of the product. Lithium batteries have a long time ago, but the lithium is a highly active (remember that the its position in the periodic table?) Of the metal, it is not safe when used often in charge when burning, the burst, Then there is the improved version of the lithium-ion batteries by adding the element lithium can inhibit the active ingredients (such as cobalt, manganese, etc.) so that the lithium power to achieve real security, efficient and convenient, and the old lithium batteries also Basically eliminated. As to how to distinguish them from the on the logo will be able to identify, lithium batteries for Li, lithium-ion 310-6321 for Li-ion. Now, notebook and mobile phone use of the so-called "lithium batteries", in fact, are lithium-ion.

The basic structure of modern batteries, including cathode, anode and electrolyte of the three elements. As a, lithium-ion with the same three elements. Lithium-ion technology in general or the use of inorganic colloidal liquid electrolyte, it needs to accommodate case solid combustible active ingredient, which increased the's weight and cost, but also limits the size and design flexibility. In general, liquid lithium-ion secondary is the minimum thickness of 6mm, and then to reduce the more difficult.

The so-called polymer lithium-ion batteries in three of the main structure at least one or more polymer materials used as the main system.

A new generation of polymer lithium-ion polymer batteries in the extent of the already very high, so the shape can be shaped and thin (the thinnest 0.5 mm), of any size and any shape, and greatly increased design flexibility, In order to meet product demand, made in any shape and capacity of the. At the same time, lithium-ion polymer unit of energy than current lithium-ion batteries in general increased by 50% of its capacity, charge and discharge characteristics, security, operating temperature range, cycle life and environmental performance in areas such as lithium-ion 310-6322 are relatively large The rate increase.

Currently on the market by sales of liquid lithium-ion (LiB) in the over-charging the case, thus easily lead to the breakdown of the fire safety situation, it is very dangerous, so to install the necessary protection to ensure that the cell line IC will be no over - Charge. The polymer lithium-ion, this type of cell relatively liquid lithium-ion in terms of good-resistant properties of charge and discharge, so the protection of Canada's IC circuit requirements can be relaxed. Also in charge, the polymer lithium-ion batteries can be recharged using IC will be current with the lithium-ion rechargeable used in CCCV (Constant Currert-Constant Voltage) charge means the time required for comparison, can shorten the waiting time for many.

Second, the use of lithium-ion

This is part of the focus of this article, we discuss three points.

1, for a new charge

In the use of lithium batteries should be noted that for a period of time after the is placed into hibernation, lower than normal capacity at this time, the time has also come to shorten. However, lithium batteries can easily activated, as long as after 3-5 times the normal charge-discharge cycle of the can be activated, the resumption of normal capacity. As the lithium own characteristics, its decision is almost no memory effect. Therefore, cell phone users in a new lithium in the activation process does not require special methods and equipment. Not only is the theory that, from my own practice, from the very beginning, the use of standard methods of charging that "activation" is the best way.

Lithium D5318 for the "activation", a large number of claims: the time to charge more than 12 hours, repeated three times to do in order to activate the. "The first three necessary and sufficient to charge more than 12 hours", it is obvious from the nickel (such as nickel-cadmium and nickel metal hydride) inherited. This is why it can be said is the beginning of miscommunication. Lithium batteries and nickel charge and discharge characteristics of a very big difference, but also very clear to tell you that I have had access to all the serious official stressed that all technical information and charge-off will discharge lithium, especially lithium liquid Ion G5260, G5266 causing great harm. According to the charge and therefore the best time and method of charging standards, in particular for not more than 12 hours of super-long charge. Typically, the statement introduced mobile phone charging method is suitable for the mobile phone standard method of charging.

In addition, the lithium in the phone or charger will automatically stop after a charge, there is no electricity nickel charger for 10 hours the so-called "trickle" charge. In other words, if your lithium batteries in full, on the white charger is also sufficient. And we can not guarantee that no one charge and discharge protection circuit features and never change the quality of safety, so your Latitude CPi will be in the long-term hovering on the brink of danger. This is also another charge against the chief reason.

In addition to certain mobile phones, the charge for more than a certain amount of time, if not remove the charger, this time not only to stop charging system, will be the beginning of discharge - charge cycle. This is perhaps the manufacturer has its own purpose, it is clear that on the phone and / charger is the life span of a negative. At the same time, long charging would take a long time, often at night, and to our country's power grid situation, at night in many parts of the relatively high voltage, but also volatile. Said earlier, the lithium is very delicate than nickel in the electric charge and discharge aspects of fluctuations in the capacity of resistance is much less, so this brings additional risk.

In addition, can not be ignored other aspects of a lithium that is not the same for over-discharge, over-discharge of lithium Inspiron 8200 is also very unfavorable. This leads to the following question.

2, in normal use when the charge should be

In our forums, often see this as the number of charging and discharging is limited, so should the cell phone power used up as much as possible and then charge. But I find on a lithium-ion charge and discharge cycle test table, on the life cycle of figures is as follows:

Life cycle (10% DOD):> 1000 times

Life cycle (100% DOD):> 200 times

DOD is the depth of the discharge of which the initials. Can be seen from the table, the number of rechargeable and about the depth of discharge, 10% DOD at the time of the life cycle than 100% DOD's a lot longer. Of course, if the actual charge equivalent to the total capacity of the relative: 10% * 1000% * 100,100 = 200 = 200, which is the complete charge and discharge, or better than some, but in front of friends do say that some of the amendments: normal Under the circumstances, you should have a reservation in accordance with the remaining Inspiron 8000, Inspiron 8100 power and then run out of filling the principle of charging, but if your is expected in the first 2 days you can not adhere to the whole day, should start on time charge, of course, if you are willing to back A charger to the office and when Bielun.

And you need to charge in order to cope with the anticipated upcoming busy communications will lead to an important event, even if there are a lot of power over time, then you just charge ahead of time because you do not have a real loss "1" sub-charge cycle life, That is, "0.x" times, but often this will be a very small x.

The remaining Inspiron 4000 power and then run out of charge to the principle does not mean that you go to the extreme. And charging the same length of a widespread view that "as far as possible the cell phone batteries run out of power, it is best to use automatic shutdown." This is only a matter of fact on nickel Inspiron 4100, to avoid occurrence of memory effect, unfortunately, it is also spread of lithium batteries on this. It has been too low because the cell phone warning appears, do not continue to use the charge has been used in automatic shutdown of the case. The outcome of this case, the phone was in charge of the boot in and there was no response, had to give customer service overhaul. In fact, this is due to the as a result of excessive discharge and led to the low voltage that does not have the normal charge of the boot and conditions.

3, Li-ion for mobile phones in the right way

To sum up, I lithium batteries used in mobile phone charging and discharging of the most important tips are:

1, in accordance with the standards and procedures, charging time, even before the three to do so;

2, When the phone prompts when electricity is too low and should start charging as much as possible in a timely manner;

3, lithium batteries do not need to activate the special method, in a normal cell phone use in lithium would be natural to activate. If you insist on spreading the use of "three times before the 12-hour long activation charge" approach, in fact there will not be the effect.

As a result, all 12 hours long pursuit of the lithium Inspiron 2500, Latitude CPX and rechargeable cell phone used in automatic shutdown, are wrong. If you are used to be in accordance with the wrong done, please correct in a timely manner, perhaps not too late.

Of course, cell phones and chargers to protect themselves and control the quality of a good circuit, for the protection of lithium batteries or have guaranteed. Therefore, understanding the rules of the charge is the key, in some cases also may make some concessions. For example, you found your cell phone the night before bed charge, you can also start charging before going to bed. The crux of the matter is that you should know what is the right thing to do, and not in accordance with the deliberately wrong to do