Weight: Weight requirements

The weight of lithium iron phosphate power battery is less than that of lithium iron phosphate energy storage battery.

As the power consumption of new energy vehicles increases with the weight of the vehicle, the power battery requires a lighter weight. The requirements for energy storage batteries in energy storage power stations are all large-scale, with no requirement for the importance of batteries at levels of megawatts or even hundreds of megawatts. Due to the lack of significant limitations on energy storage lithium batteries, the production cost requirement is lower than that of power lithium batteries, and the safety requirement is also higher.

Height: Size

The volume of lithium iron phosphate power batteries is equivalent to dozens or twenty large carpets stacked together, while lithium iron phosphate energy storage batteries are generally composed of multiple battery modules forming a large module, which is then combined with many large modules. Energy storage batteries with a volume close to that of a container.

Battery capacity

Battery capacity: Lithium iron phosphate power battery ＜ Lithium iron phosphate energy storage battery.

Electrical performance

Discharge current: Lithium iron phosphate power battery ＞ Lithium iron phosphate energy storage battery

Resistance: Lithium iron phosphate power battery ＜ Lithium iron phosphate energy storage battery

If lithium iron phosphate power batteries and lithium iron phosphate energy storage batteries use the same battery material, but the quality of the same material is slightly better, the internal resistance will be lower, and the energy storage battery will be slightly worse, and the internal resistance will be higher.

Application Requirements

When discharging lithium iron phosphate power batteries, the current changes greatly, and more attention is paid to charging and discharging power. It requires fast charging rate, high output power, and impact resistance, especially high safety and energy density, achieving long-lasting endurance, and lightweight requirements in terms of weight and volume. Energy storage batteries can be considered to have a relatively stable output, generally with a small discharge current and a long discharge time. From the perspective of battery materials, it is necessary to consider the lithium storage performance of positive and negative electrode materials, as well as the related performance of electrolytes and separators.

Lithium iron phosphate energy storage batteries generally require continuous charging or discharging for more than two hours, while also undertaking frequency modulation and peak shaving applications. Energy based batteries are more suitable. Of course, in this scenario, power based and capacity based batteries can also be used together.