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Basic Knowledge Of Battery Internal Resistance Nov 24, 2016

Battery internal resistance refers to the battery at work, the current flow through the battery inside the resistance, including the ohmic resistance and electrochemical polarization resistance and ion migration resistance and so on.

Ohm resistance mainly refers to the electrode material, electrolyte, diaphragm resistance and parts of the contact resistance components, and battery size, structure, assembly and so on.

Electrochemical polarization resistance and ion migration Polarization resistance refers to the battery cathode and anode in the electrochemical reaction caused by polarization resistance.

Different types of battery internal resistance is different. The same type of battery, due to internal chemical characteristics of the inconsistency, internal resistance is not the same. Battery internal resistance is very small, we generally use milliohm units to define it. Resistance is a measure of battery performance is an important technical indicators. Under normal circumstances, the small resistance of the battery discharge capacity of high-current, internal resistance of the battery discharge capacity is weak.


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