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Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-04-22 Hits: Popular:AG11 battery
The structure of ternary 3.7v 18650 lithium battery
The ternary element of ternary 3.7v 18650 lithium battery refers to the three elements Ni, Co, Mn, each of which plays an important role, and the characteristics of each element also affect the battery performance.
The principle of ternary 3.7v 18650 lithium battery
Among the three elements here, Ni and Co are specific metal materials, and Mn does not participate in electrochemical reactions. Generally speaking, the higher the specific metal content, the greater the battery capacity. However, when the Ni content is too high, Ni2+ will occupy the parts of the lithium-ion battery, aggravating the mixing of positive ions, thereby causing a reduction in volume. Co is also a specific metal material, but it can have the function of inhibiting the mixing of positive ions, thereby stabilizing the lamellar structure of the material. As a non-specific metal material, Mn plays a reliable role in improving safety.
Advantages and disadvantages of ternary lithium batteries
Advantage:
The specific energy is high, which also means that the battery life of the ternary 3.7v 18650 lithium battery is stronger when encountering the same volume, weight, and even the same ampere-hour.
Voltage platform The high voltage platform is an important indicator of battery specific energy, which determines the basic efficiency and cost of the battery. The higher the voltage platform, the greater the specific capacity.
defect:
The safety factor is poor. Many reviews have shown that large-capacity ternary batteries are difficult to safely test for needle sticks and overcharging.
Poor heat resistance
The theoretical service life of ternary lithium batteries with poor service life is about 800 cycles, which is at the middle level among commercial rechargeable lithium batteries.
High power charge and discharge difference
The elements are harmful. The temperature of the high-power ternary 3.7v 18650 lithium battery rises significantly after charging. The CO2 released after high temperature is very easy to ignite.
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