For the purpose of rechargeable batteries, lithium iron phosphate has been considered one of the most important and significant material as it provides stability, durability, safety and ability in order to deliver a lot of power at once since its discovery 15 years ago. Major research projects have focused on it around the world and a leading technology has been used in everything from power tools to electric vehicles.
But despite its interest in all over the world, there has been an uncertainty regarding reasons behind the unusual charging and discharging characteristics of lithium iron phosphate. Now a research has been done by the team of researchers through which surprising new results have been shown according to which the behavior of material was different than it had been thought by the researchers.
It helps in explaining its performance as well as possibly provides the opportunity of the discovery of more effective batteries materials than before. After the discovery of this fact, the lithium iron phosphate has been considered useful only for the purpose of low power applications. But the later developments by the team of researchers, it has been shown that by using it in nano-particle form its power capacity could be improved dramatically.
This is an approach by which it has been made one of the best materials known for high power applications. But the reasons behind well working of nano-particles of lithium iron phosphate remained elusive. According to the researchers, the bulk material has been separated into different phases while being charged or discharged with very different concentration of lithium and because of this separation, the power capacity of material was limited.
But according to new research, this separation never happens in real world conditions. The theory of scientists states that the reaction is so fast above a critical current that the material could lose its tendency for the phase separation which usually happens at lower power levels. With eh help of a new quasi solid solution, the material passes just below the critical current where for completing the phase separation, it does not have sufficient time.
These characteristics are helpful in explaining the reason behind the suitability of this material for rechargeable batteries according to the group of researchers. These findings are a result of combination of theoretical analysis, laboratory experiments and computer modeling.