It is always interesting to track the advancements of battery technology and Sony has just released a really interesting new 1.2kWh-class Energy Storage Module. The most notable feature here is the use of li-ion rechargeable batteries that have cathodes made from a material called “olivine-type lithium iron phosphate cell”. This will allow for higher power output, long life performance and excellent thermal stability. The device will be able to be used as a supplement to stationary power supplies for data servers or as a backup supply for mobile phone wireless base stations.