Motive power lithium batteries are generally divided into large power lithium batteries and small power lithium batteries. High-power lithium batteries mostly refer to batteries installed in electric vehicles, while low-power lithium batteries refer to batteries installed in electric bicycles or power tools etc.
Energy storage batteries are important for the storage and output of electrical energy. As the energy storage market of lithium-ion batteries has not been greatly developed, what is the difference between the batteries used and the motive power lithium batteries?
Although sometimes it can be interchangeable, in fact it is not necessarily, and the specific situation needs to be analyzed on a case-by-case basis.
First of all, energy storage lithium battery application is relative simple than motive power battery.
The general application of energy storage batteries is the electricity of some conventional electronic equipment, such as information base stations, solar systems, some 3C electronic products, etc. Most of their discharge requirements are about 1C rate, in this case, the requirements for the materials' performance used in the battery will be relatively poor, such as the separator, because the lithium-ion battery with low rate discharge is not easy to heat, so in terms of temperature resistance, the separator will be worse than the power battery, and the natural price is relatively low.
Secondly, in terms of the size of the internal resistance, because the discharge current of the battery is small, the internal resistance is generally larger than that of the power battery.
That is to say, although the type of battery material used in energy storage lithium-ion batteries and power lithium-ion batteries is the same, but in terms of quality of the same material, energy storage lithium-ion batteries are slightly worse, and the internal resistance will be higher, so in terms of overall price, generally speaking, energy storage lithium-ion batteries are cheaper than power lithium-ion batteries.
Lastly but most importantly, the BMS (Battery Management System) for two different batteries are different.
Motive power batteries need to manage more complicated situations such as speed accelaration, climbing uphill, low or high temperature operation etc, so the BMS for motive power lithium batteries is more sophisticated. While the energy storage battery normally does not need to move once installed and their working conditions are well managed by air-conditioner. In most cases, the energy storage batteries are not working but float charging only. This also make the cost of energy storage battery lower than motive power batteries.
Finally, you can not exchange energy storage lithium batteries for motive power purpose, even though they are looking the same. The battery can be damaged very soon.