18650 battery 2200mah

　　The reason why 18650 battery 2200mah life is shortened has been found, and battery technology has made new progress

　　The reason for the shortened life of lithium batteries has been found and new progress has been made in battery technology - Recently, American scientists published a paper on the shortened life of lithium batteries. The article details the reasons for the shortened life of lithium-ion batteries. This paper is considered to be promising. A valuable reference to help develop batteries with longer battery life.

　　Recently, American scientists published a paper on the shortened life of lithium batteries. The article details the reasons for the shortened life of lithium-ion batteries. This paper is considered to be a valuable reference that is expected to help develop longer-lasting batteries.

　　A paper published by American scientists in the latest issue of "Science Advances" magazine said that the lithium ion concentration in lithium-ion batteries will fluctuate, which explains the reason for the shortened life of lithium-ion batteries, and is expected to help develop faster charging, A battery that lasts longer.

　　A research team led by the U.S. Department of Energy's Brookhaven National Laboratory recently discovered that when a battery generates electric current, if the battery's electrodes are made of nanoparticles, the lithium ion concentration in some areas of the nanoparticles will first rise, and then dropped, rather than continuing to increase as previously thought.

　　A lattice is a structure in which particles inside a crystal are arranged in a certain geometric pattern. The working principle of lithium-ion batteries is that lithium ions move between the positive and negative electrode lattices. When charging, lithium ions flow from the positive electrode to the negative electrode, and the opposite occurs when discharging.

　　Similar to a sponge absorbing water, we see that the total concentration of lithium ions in the nanoparticles is constantly increasing, said Wang Feng, a scientist in the Sustainable Energy Technology Division of Brookhaven National Laboratory who led the study, but unlike water, lithium ions are selective The ground flows out from certain areas, which causes inconsistencies in lithium ion concentration between the lattice.

　　The researchers pointed out that before lithium ions enter the lattice, the structure of the lattice is very uniform. Once lithium ions enter, it will stretch the lattice. When lithium ions flow out, the lattice shrinks again. Uneven movement of lithium ions can cause lasting damage because it deforms the structure of the active components within the battery and can lead to battery fatigue failure.

　　The researchers speculate that this phenomenon may also occur in the chemistries of other high-performance batteries, and the findings could help develop batteries that charge faster and have longer standby times.

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