Mobile call power cell vocational terms explained

Detailed explanation of mobile phone battery
professional terms commonly present cell phone battery Category:
Ni-MH (Ni-MH battery), Li-ion (Li-ion battery ), LiB (fluid lithium-ion battery), LiP (polymer lithium-ion battery.)
the elementary parameters of lithium-ion
dictate cutoff voltage: 4.2V/4.1V.
phone off voltage: 3.5V (in common)
battery discharge limit: 2.75V/2.7V
( Description: Voltage deserving to the differ batteries of different design process, the current larger capacity battery, mostly 3.7V)
resolve the remaining battery capacity of the most handy path is to amount the voltage (4.2V case in point) :
& Wantong Commercial Union to find the top business! 4.20V---- 100%
3.95V---- 75%
3.85V-- - 50%
3.73V---- 25%
3.50V---- 5%
; 2.75V---- 0%

the basic parameters of lithium-ion GB/T18287 2000: the 1C rate charging to 4.2V (alternatively 4.1V, C is the nominal capability, security or milliamperes), the unload rate to 0.2C to 2.75V (2.7V), the product of current and period for the capacity. Test 5 by the time the period to approach titular obedience. Related issue, according to citizen criteria of hydrogen power GB/T18288-2000: NI-HN battery capacity is charged by 0.4C, 0.2C measurement.
the basic parameters of the lithium ion the cycle life. GB provides life of not less than 300 times. Down to 70% of the actual battery capacity can still be used. Note that the battery and use the actual cycle life also in the DOD (depth of discharge) are closely narrated. Because of the quality, accuracy and the use of charge and discharge control habit, the same battery in different people, different contexts and conditions of use, its life may be very different.


structure of lithium-ion battery from the batteries to protect the circumference boards, borders,After a near see ambition join a laugh giggle, packaging components.
lithium-ion battery charging requirements
batteries lithium-ion battery charge and discharge electrode structure on the voltage requirements are very strict, you must have a constant current and voltage requirements (CC / CV: Constant Currert-Constant Voltage descriptions from citizen standards GB/T18287 2000) either of the lithium-ion battery charger. Constant electric current is started charging, the battery voltage additional gradually as the charging process to reach 4.2V (4.1V) inflection point voltage to constant voltage charging, after charging the charge current with saturation to deepen gradually decreases, the time while it reaches 0.01C , charging is completed.
non-lithium-ion battery charger for charging do not have this feature, if accustom on LION batteries this charger will shrink battery life, and even hazardous. The initial battery charge

new battery plant activation method for the semi-battery charging status (to reduce self-discharge during transportation and storage of the phenomenon), different place some time after the battery will work to nap; new battery and battery storage for a long time to do could assist stimulate the battery into the charging state. Is: 1st, directly off the battery until the phone is normal, and then charged off to the exhibit using a mobile phone is full, plus red 1-3 hours. The advantage: both the prefatory warm-up the battery, to avoid the past . Initial charge plus use the phone line to avoid the charge additional than charging.
battery protection board and intelligent battery charging
elements among the lithium-ion state of subsistence, security is very high. However, batteries in the overcharge, over discharge caused by high temperature,Muscle education is needful apt nectar protein pow, under interior pressure remains damaged or even explosion. Battery conservation board by electronic devices to cater over-current, over voltage, over-temperature protection functions, which can mainly prevent accidents. Protection board is no problem with it? No! Inflection point voltage battery protection typically 4.2V (or 4.1V), and the protection plate standard is routinely designed to defend voltage 4.35V (actual may be higher), so the protection board can merely handle with the serious situation caused by chance, and had charge of journal without any protection. Many mobile phones (such as MOTO, Samsung) with They installed the battery protection board file storage memory or the electric models of resistance namely the battery container chapters, mobile phone battery identified as type, size, capacity and invest the appropriate charge control parameters, when the information is inaccurate or does not mate the requirements of the battery, cell phone will show Protection board can be applied to PTC / NTC thermostatic devices automatically recompense for temperature elicited volume change and adapt the charge current according to the temperature, but also to intelligent control of charging purposes.
of standby time / talk time element
-. phone prototype, the specific power expense of the individual compartment phone, compartment phone parameters
-. sim card piece technology process (1.8V process consumes fair a normal sim card, sim card, 3V process 1 / 3)
-. place phone whistle strength; strong marking, and bottom station vicinity,GHD Purple Straighteners, communication among mobile phone and base station transfer power to be small.
-. charging usage, charging time, charge the battery of sleepy time;
-. battery capacity, quality,Teach you how apt rotate mediocre cars into Ferrari (Figure ), service life;
-. ambient temperature (near to zero in the cheap temperature capacity would be dripped.)
batteries for transmission and cache battery in half
ought be allowed to charge (50% half-charged) state. Residual pressure is too low, due to self-discharge after long-term storage to the battery voltage is lower than 2.75V will influence battery life, dropped to 2.2V under The full power, the battery is vigorous materials, increased aging and self-discharge, it will also affect life expectation.
battery articulation
deterred to steel welding, for lofty temperatures tin reason structural damage batteries, there is a serious risk of burst. Should be based above high-frequency welding smudge welding.
bulging phenomenon
the process of charging the internal battery will produce a small measure of gas, generally in the discharge absorption. Charge current is also colossal, constantly over charge will increase gas production, increased pressure within the battery cause a swell phenomenon. Slightly bulging battery is allowed. To avoid overcharging the key to dilute the bulging phenomenon.

lithium-ion battery features light weight, capacity ratio, self-discharge slightly (1% / day), charging efficiency (charge input capacity almost equal to the battery output capacity), no memories efficacy, no upkeep, discharge, single voltage up to 3.7V (3.6V), cycle times of up to 300-1K, with fast charge skill, wonderful high-temperature discharge specifics. Implementation of fast charging


except mutual constant current (CC / CV) approach, a number of senior high-speed charger with charge capacity, charging time and some only need 25 minutes or 10 minutes! (Such as the International four-wheel racing mode battery charger). The conviction is: The high-current charging, charging batteries reach saturation in the gasification point to preoccupy the moment produced one immediate reversal of the gas discharge ... ... persist to circulate until the battery is full. In principle, there is to test the battery to overcharge expedited temperature mushroom dT / dt method, a test battery gas saturated fat decreased slightly when the phenomenon of voltage-ΔV way. Monitoring and sampling, computing and control must be precise with a devoted LSI chip, GP 1800mah three generations of one-hour quick charger is the-ΔV method. (NetEase)