Which kind of battery is more suitable for electric tools?

2.镍氢电池制成的电动工具电池

镍氢电池

作为电动工具电池的镍氢电池的能量密度没有锂电池高，因此在相同的电池组空间内，镍氢电池的容量比锂电池小，但镍氢电池的一致性比锂电池高。因此，镍氢电池组的安全性能优于锂电池。同时，镍氢电池可以实现15%以上的放电容量，完全可以满足电动工具工作特性的要求。当然，镍氢电池比锂电池重，但它们比锂电池更便宜，在制造成本和市场价格方面更有竞争力。

此外，镍氢电池的低温性能比低温磷酸铁锂电池和低温锂聚合物电池差得多。因此，镍氢电池一般不适合用于低温地区的电动工具电池。

3. Power tool battery made of LiFePO4 battery

Electric tool battery made of LiFePO4 battery

Lithium iron phosphate battery has certain advantages as the battery of power tools. Its high temperature resistance is better than other lithium batteries. At the same time, the discharge performance above 30C can be achieved. The effect is ideal at room temperature and wide temperature. Compared with Ni MH battery, its low temperature performance and energy density are better, and its service life is longer. Ni MH battery has memory effect, but LiFePO4 battery does not. At present, the technology of LiFePO4 battery has some shortcomings compared with NiMH battery, the consistency of battery is relatively poor, and the safety of battery pack is slightly worse than NiMH battery.

4. Lithium polymer power tool battery

Lithium polymer power tool battery

Among the batteries for power tools, lithium polymer should be the most expensive. Lithium polymer not only has higher energy density, but also has the best performance in achieving ultra-high rate discharge. The reason why lithium polymer is expensive is that it uses some rare materials with high energy density, and its production and manufacturing technology requirements are relatively high. Its disadvantage is that its internal high temperature performance is slightly worse than that of iron phosphate battery, similar to that of Ni MH battery. The above is an introduction to the battery types of power tools. I believe that by comparing their advantages and disadvantages, everyone should have a preliminary understanding of which kind of battery is more suitable for power tool batteries.