What is the relationship between iron-lithium battery power and voltage?
by:Vglory 2021-04-27
The relationship between iron-lithium battery power and voltage: When discharging, the voltage of lithium battery will gradually decrease with the passage of power, and there is a considerable slope. This provides us with another approximate way to measure electricity. The method of taking the battery voltage is the same as measuring the height of the water inside the water tank to roughly estimate the remaining water volume. But in fact, the battery voltage is more complicated than the calm water level measurement in the water tank. The greater the discharge current, the lower the voltage. In the absence of current, the voltage is the highest. As the cycle progresses, the discharge platform of lithium batteries tends to deteriorate. The discharge platform is lowered. So the capacity represented by the same voltage has changed accordingly. For the same lithium iron battery, with the same remaining capacity, the voltage value changes due to the magnitude of the discharge current. Different manufacturers and different capacity lithium batteries have slightly different discharge platforms. In the process of grouping lithium batteries, due to the subtle differences in the constituent materials of the lithium batteries and the level of the grouping process, the functional performance of the lithium batteries will be inconsistent during use and placement. This is the discrete phenomenon of lithium batteries. The quantitative index describing this kind of dispersion phenomenon is the degree of dispersion, which is obtained by the functional relationship of several parameters. The important factors that cause the numerical change of the dispersion are: resistance, voltage, capacity, temperature, etc. The working principle of the discharge termination voltage of lithium iron battery: The nominal voltage of a single lithium iron battery is generally designed to be 3.7V, and the termination voltage is 2.75V. There are two situations that cause the manufacturer to increase the upper limit of the termination voltage to 3.0V, one is lithium The electrochemical properties determined by battery materials are often considered from the perspective of safer use of batteries; the second is related to specific electrical products and electrical environments. Of course, there are also the opposite situations. The termination voltage can be designed to be lower, such as 2.5V and 2.4V, but there is no lower than 2.4V. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: What is the difference between a lithium iron phosphate battery pack and a ternary battery?
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