laptop battery

We have been charging for mobile phone batteries IBM 08K8199 Battery have different understanding of the use and maintenance, where I think we are all unified point of view and to correct some wrong views.
Talking about the lithium-ion batteries do, let's a brief look at the so-called lithium-ion batteries is to use can be hidden from the lithium-ion absorption of carbon materials as negative electrode active material of batteries, lithium-ion symbol Li-ion. As we all know batteries are normally as a positive, negative, diaphragm, electrolyte, and other basic elements, then the lithium-ion batteries used in these materials are generally the following substances:

Anode: lithium cobalt oxide (LiCoO2), lithium nickel (LiNiO2) lithium manganese oxide (LiMn 2 O 4), etc.;

Negative: artificial graphite series, series of natural graphite, coke, family, etc.;

Diaphragm: polyethylene (PE), polypropylene (PP) composed of single-or multi-layer micro-porous film;

Electrolyte: acetate propylene carbonate (PC), ethylene carbonate (EC), dimethyl carbonate (DMC), diethyl carbonate (DEC), methyl ethyl carbonate (MEC) composed of one dollar , binary or ternary mixture of

Sold on the market are mostly based on lithium-ion battery lithium cobalt oxide as cathode and graphite anode of the battery series.

The working mechanism of lithium-ion batteries laptop battery are: battery charging, the cathode material of lithium to form an ion leaching, embedded into the cathode-modified graphite layer; the battery discharges, the lithium-ion de-embedded from the graphite layer, through the separation membrane to the anode backfill lithium cobalt oxide layered structure. With lithium ion charging and discharging of the continuous positive and negative from the embedding and prolapse, so it was called "rocking chair cell" lithium-ion battery rated voltage of single 3.6V, charging limit voltage of 4.2V, discharge limit voltage to 2.5V.

Lithium-ion battery charging process is divided into two steps: first, constant current charging, the current is constant, voltage is going up, when the voltage to 4.2V when the charge is automatically converted to constant voltage charging, constant voltage charging at constant voltage, current is a smaller and smaller until the charge current is less than a pre-set value so far, so someone direct charge of the mobile phone when the battery charge clearly show is full grid of power, but still shows is charging, in fact, this time the voltage has reached Therefore, a 4.2V battery IBM 92P1073 Battery is displayed as full frame, then, is the constant voltage during the charging process, then someone may ask, why a constant voltage charging it directly to 4.2V with constant current charge is not on the list do, in fact, very easy explained that, because each cell has a certain amount of resistance, when carried out using constant current charge to 4.2V, when the 4.2V is actually not the actual battery voltage, but the battery voltage plus the voltage of the battery internal resistance on the consumption of the sum, if the current is large then the internal resistance of the voltage on the consumption also big, so it is the actual battery voltage is much smaller than 4.2V, so use constant voltage charging process, the charging current slowly down , so that the actual battery voltage is very close to 4.2V.

We use lithium-ion battery IBM 92P1077 Battery in the process actually does not need to know so much, we just know how to charge, how to discharge, how to use in order to maximize battery role and maintain a good cycling performance. Next, I will talk about in this regard some of my views:

1. The best is to use lithium-ion battery charger original, otherwise they will be a certain degree of damage to cells and affect their life;

2. Charger and Charger for the direct question, I think, if time permitted, it is better to use Charger, then it can extend battery life and also can increase the capacity of a single charge;

3. If the battery does not use a long time, it is best to charge into about 40% of the electricity in the 10 ~ 30 ℃ of temperature preservation, and every six months or so make up a battery;

4. For just bought a new battery, it was said that the first three charge must be charge 10 hours for the full activation of the battery, I think it is not necessary, of course, is for the new battery than the previous capacity of the future to be reduced, It was a long-term battery storage, caused by surface passivation active substances, I think the previous charge with the Charger IBM 92P1102 Battery to charge one or two hours after the green light is sufficient, of course, charging time depends on your charger and your battery charge current there will be changes in the different capacity, in short, the longer the charging time is not good, so not only can not activate the battery, on the contrary will affect the life, the worst case (if your charger voltage accuracy control is not enough) will be an explosion.

5. In the process of long-term use the battery often and have an understanding of the errors, I need to talk with you, we tend to believe that the battery usage is a certainty, for example 500 times, So every time the full utilization of So we asked every charge must be filled with as much as possible, every discharge it to be clean and put as much as possible, it seems that such use is the most efficient use of, in fact not the case, the battery life with your use of the existence of a certain relationship, If your battery IBM 08K8196 Battery cycle life is 500 times, if you're used properly, then perhaps it can use 700 to 800 times, so that the correct way is to use the charge should not charge too full, about 90% is enough, in the course of to see lower power consumption, we can immediately charge, rather than wait until it automatically shut down or even shut down automatically after the charge is not carried out, and we have done this in the lab experiment: 80% DOD of the battery life of more than 100% DOD's long battery life by about 30%;

6. It is also very important, lithium-ion batteries on the charger requirements are very strict limits for the charging voltage is very strict, you have to look at its requirements are 4.1V or 4.2V, because when the graphite anode used in series, then the limit When voltage is 4.2V, if the negative electrode using a series of coke, then it limits the voltage is 4.1V, the battery on this general description will be short, and battery charger must be matched, you can not use the charger to charge 4.2V to 4.1V battery;

7. It must also be emphasized: Absolutely not use rechargeable nickel-metal hydride batteries, or nickel-chrome battery DELL 08K8194 Battery charger rechargeable lithium-ion battery, so that will not only damage the battery and has the potential to explode;

8. Lithium-ion battery with no memory feature, so every time unlike the Ni-MH rechargeable batteries and nickel-chromium batteries need to discharge the same, it can conduct charge and discharge at any time.

In general, do not blind faith in the first IBM 92P1087 Battery three 12-hour charge, and do not always afraid and gave intentional discharge, as long as possible is to run out of charge, full use, not to emphasize too much of what the cell phone battery life is very long, Otherwise, self-defeating.