Low temperature 18650 lithium batteries, code 18650 performance parameters of the gun
18650 lithium-ion batteries due to its industrialization production is relatively universal access, plus materials are relatively cheap, so whether ordinary safe use battery or low battery, are all on the price advantage, however 18650 lithium batteries at low temperature performance is good? Then look at the 18650 low temperature lithium battery pack performance parameters is introduced. The following content is our 3 in detail. 7 v2000mah18650 scan code gun ternary lithium battery is introduced.
it's batteries models: & reg; 3. 7 v2000mah18650 lithium battery
it's nominal voltage: 3. 7 v
it's nominal capacity: 2000 mah ( 0. 2 c discharge)
it's working environment: charging: 0 ℃ ~ 45 ℃ Max. 85% RH, discharge: - 20 ℃ ~ 60 ℃ Max. 85% RH
it's lithium electricity protection, overcharge protection, discharge protection, over-current protection discharge, discharge short circuit protection, etc.
work temperature: charging 0 ℃ ~ 45 ℃; Discharge - 40 ℃ ~ 60 ℃
: heat discharge in sixty & plusmn; 2 ℃ high temperature box in the constant temperature for 2 h, under the temperature of 0. 2 c electric constant exile to 2. 5 v, reasonable and effective discharge is nine hundred percent of the initial capacity;
low temperature discharge: in - 40± 2 ℃ low temperature box temperature 4 h, under the temperature constant current zero. 2 c discharge about 35 minutes, then switch to 0. 1 c electric constant exile to 2. 5 v, reasonable and effective discharge is five hundred percent of the initial capacity;
cycle life: - 20± 2 ℃ battery with 0. 2 c constant current constant voltage charge electricity to 4. 2 v, spare 5 min, with 0. 2 c discharge current to 3. 0 v record discharge capacity, cycle two hundred times, reasonable and effective discharge is less than six hundred percent of the initial capacity;
storage features: in 20 & plusmn; 2 ℃ condition, with 5. Five methods to lithium battery. The battery in fifty & plusmn; 2 ℃ under the condition of storage for seven days, and then let stand at room temperature for 1 hour, with 0. 5 c electric current constant exile to 3. 0 v cutoff voltage.
low temperature 18650 lithium batteries, and 18650 yards gun safe use note
1. Don't over charge and discharge
you must pay special attention to is that at the time of batteries not safe to use for a long time, it is likely to use other self-discharge features in a discharge. In order to avoid the happening of the discharge, the batteries should be regularly recharge, maintain its voltage at 3. 6 v to 3. 9 v. Over discharge will cause the lack of batteries, battery performance function.
2。 Don't touch, harmful to human body electrolyte
there will be no flow of electrolyte lithium battery theory, but if there are one thousand electrolyte leakage and touch the face skin, eyes or other body parts, must be properly swab with water electrolyte and went to the hospital to see a doctor.
3。 Forbidding reverse charging
like get low temperature 18650 lithium battery, charging treasure when charging treasure power is too low, will reverse charge. Reverse charge will lower batteries charging and discharging performance, security, and can cause burning, leaked.
4。 Not a professional, don't remove the batteries
in all situations can not remove the batteries, remove the batteries are likely to cause internal short circuit, resulting in the drum, gills, fire and other issues. Can't burn batteries or batteries on the fire, otherwise will cause batteries burning, it is very dangerous and should be absolutely prohibited. Again that is batteries in the delivery of the entire process is likely to be damaged due to collision of, if discover all batteries have abnormal features, such as batteries, sealing side is impaired, the metal shell is damaged, can smell gas, electrolyte leakage of electrolyte, etc. , the batteries is not safe to use.
18650 ternary lithium battery under the low temperature circulation, very easy to generate high specific surface area of lithium metal precipitation, the morphology of lithium metal is closely related to the factors such as current density, voltage. At the same time have not cycle battery and low temperature cycle after the battery stability and reliability, needle experiment carried out research and analysis, can be concluded that the electrolyte plays an important role in it. Low temperature cycle inside the battery electrolyte will produce other decomposition reaction, so after low temperature cycle batteries more unstable, and mechanical abuse will improve its security.
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