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18650 working principle of the lithium battery charge and discharge, 18650 lithium-ion battery parameters

by:dcfpower     2020-12-03

18650 lithium batteries as industrial production at present stage to choose the most common types of lithium batteries, lithium battery electric capacity is 18650 manufacturer's key selling point, at the same time, the electric capacity of 18650 batteries, lithium-ion batteries well-known brand is also the key factors that influence the price directly, so you know about knowledge of the lithium battery pack has 18650? Well, then we know about the working principle of the lithium battery charge and discharge, 18650, 18650 lithium battery pack parameters.

a, 18650, the working principle of lithium-ion batteries

18650 lithium battery pack charge and discharge process is Li + in anode materials are embedded in and take off and follow the kinetic energy of the digestion and absorption and release process. To 18650 lithium batteries: Li + from the anode materials embedded, the battery electrolyte in the cathode, anode materials after digestion and absorption of electronic placement of kinetic energy is higher in compounds.

18650 lithium-ion battery is a kind of rechargeable batteries, it is key to rely on lithium ion between the positive and negative two mobile to run. In charge and discharge process, Li + in the back and forth between the two electrodes embedded in and take off: when the rechargeable battery, Li + embedded from the anode, after electrolyte solution in the anode, cathode is located in the rich lithium condition; When discharge in turn. Most use materials as an electrode containing lithium batteries, is the representative of contemporary ultra performance of battery.

lithium battery charge and discharge process, is the lithium-ion placement and the embedded course. During the course of lithium ions into and embedded off, at the same time as the equivalent electronic placement, such as lithium ion and stripping of embedded Habits on the anode with placement or embedded said, and the cathode with insert or take off the plug) 。 , during the course of charging and discharging lithium ion in the back and forth between positive and negative into/out of embedded and insert/take off the plug, vividly called & other; Rocking chair batteries & throughout; 。

when the batteries in the battery, lithium battery of lithium ion to form the positive, the formation of lithium ion battery electrolyte gamut movement to the cathode. And as the cathode carbon layer structure, it has a lot of MPP, arrived in the cathode of lithium ion is put into the pore of carbon layer, the placement of lithium ion, the battery capacity is higher. The same, when the battery to discharge, embedded lithium ion in anode carbon layer slippage, movement back to the anode. Back to the anode of lithium ion, the more the higher the discharge capacitance.

2, 18650, the parameters of lithium-ion batteries advantages

1. Common use of the scope of the

in our daily life more and more machines are can choose to lithium batteries, the most common is indispensable to our usual smart phones, laptops. At the same time, various types of audio equipment, aviation model, and their children to play with toys are basically can choose to lithium batteries, if in fact just electronics equipment instrument most basic can be used under the condition of the battery.

2。 Battery can work long battery life

lithium battery under the condition of normal use is more than twice that of the ordinary batteries

this battery and compared to other types of lithium batteries have a longer operating life, in general the normal use case base is that more than five hundred times the battery discharge, is more than twice that of the ordinary batteries.

3。 No memory effect

before the battery does not need to wipe out the rest of the electricity, durable.

4。 Large capacity

18650 lithium battery of electric capacity in most cases the values basically is to ensure that in between one thousand two hundred to three thousand six hundred mah, the batteries of electric capacity is only eight hundred.

5。 Small internal resistance

domestic production of the internal resistance of the polymer lithium batteries can even lower than 35 m, greatly reduce the loss of the function of the battery, can do it on a big stage for smart phone standby time is more long, in line with the international standards of the state.

6。 Good safety factor, more safe and reliable

this battery and compared to other types of batteries will be more high safety coefficient, in the selection of basic it is will be the vast majority of explosion, burning is not going to happen, and is environmentally safe and reliable, there would be no side effects. All kinds of safety coefficient of a single place, cycle number more than 500 times, and is very resistant to ultra high temperature

3, lithium battery charge and discharge principle

the working principle of lithium-ion batteries is refers to the principle of charging and discharging. When the batteries in the battery, the battery on the positive electrode of lithium ion formation, formation of lithium ion battery electrolyte gamut movement to the cathode. And as the cathode carbon layer structure, it has a lot of MPP, arrived in the cathode of lithium ion is put into the pore of carbon layer, the placement of lithium ion, the battery capacity is higher.

so, in the lithium battery charge and discharge process, from lithium ion in anode & rarr; The cathode & rarr; The positive motion state. If we compared 18650 vividly to lithium-ion batteries for a rocking chair,, both the polarities of the two ends of the rocking chair to battery and lithium ion as excellent track and field athletes, at the two ends of the rocking chair flew back and forth. Therefore, authoritative experts gave 18650 lithium batteries a cute name rocking chair type battery.


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