Today, this type of battery is common in plug-in hybrids, and all-electric vehicles. Features like a high power-to-weight ratio, and a good performance rating even at high temperatures make these types of batteries helpful. Smaller Li-Ion batteries are more efficient. Larger batteries will be subject to overheating, if electromagnetic radiation is improperly absorbed. That’s something researchers are working on. They are trying to upgrade manufacturing technology for Li-Ion batteries. Among the drawbacks of these kinds of batteries we can refer to their high cost.