How to calculate lithium battery capacity? Lithium battery capacity sorting detection

　　Author ：Iflowpower – Portable Power Station Supplier

How does the lithium ion battery capacity calculate? Lithium ion battery capacity sorting detection. In recent years, each lithium-ion battery manufacturer has improved, and the capacity is also improved accordingly, Samsung, Panasonic, LG, Sony, Toshiba can do 3600mAh or more, generally sorted by capacity, internal resistance, voltage to battery, in order to get more Detailed performance data, many manufacturers also compare the charging and discharge curve of the battery. How does the lithium ion battery capacity calculate? The method of determination of lithium-ion battery capacity is basically consistent with the method of battery discharge performance, there is constant current discharge method, constant electric resistance, constant voltage discharge method, fixed voltage, fixed current discharge method, continuous discharge method, and masonry discharge method, etc.

According to the amount of discharge time and the current, the capacity of the battery can be measured. Constant current method: The advantage of this method is that the current is stable during the discharge process, and thus it is convenient to calculate its capacity. Lithium ion battery capacity is a very critical indicator in lithium ion applications.

Currently used lithium-ion battery capacity calculation evaluation methods have chemical method, voltage method, current integral method, etc. The capacity of the polymer lithium ion battery is related to the model size, depending on the thickness, width and length of the battery. Also related to the material and size of the battery.

The actual calculation formula of the polymer lithium ion battery capacity is complicated, and the volume is not linear relationship. To take into account many factors, such as materials, the actual capacity is much large, the larger size, the greater the capacity / volume ratio. Quickly estimate the capacity of the polymer battery, often used estimation formula (estimated only): Capacity = thickness * Width * Length * K lithium ion battery capacity sorting detection voltage method is the first method of detecting lithium-ion battery capacity, by monitoring battery Opening voltage to get the remaining capacity.

This is because there is a determination between the battery-side voltage and the remaining capacity, and the residual capacity can be estimated to measure the battery terminal voltage. Lithium ion battery sorting detection is generally divided into two types: capacity sorting and characteristics. The characteristic sorting is also called a curve sorting.

The capacity sorting, the capacity sorting is divided by the capacity interval as previously described, and the characteristic sort is satisfied Under the premise of the selection conditions, the battery in the same time is the same as the stain interval according to different voltage characteristics. The sorting of the secondary battery is generally implemented by the control of the computer, and most of the automatic sorting devices are equipped with corresponding software, which can be conveniently implemented. In general, manual sorting equipment can only meet the capacity sorting, 伹 Basically cannot perform character selection, even in the whisper of the capacity sort, it is also necessary to waste a lot of manpower to complete, and more troublesome.

Most of the secondary lithium-ion batteries is now using an automatic sorting device to sort a sorting operation, and the sorting conditions are sent to the device after setting the machine. The eligible electricity will be indicated. The content of the above lithium-ion battery capacity is expected to help everyone's reference, but the above information is for reference only.

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