Chinese companies are well known for developing low-cost devices,which can be used for extraordinary works and a new company based inBeijing is carrying forward the tradition by developing low costelectrode materials and batteries that could be used in electricvehicles. The company named Wuhe is hopeful that the new device willbring down the cost of electric vehicles, which are not getting populardue to high price.
In this battery nanostructures are used and nanomaterials havethe potential to deliver power in large bursts, which can be used toaccelerate the electric vehicle without affecting the energy storagecapacity of the vehicle. The company is developing the materials whichcould reduce the costs of the production of battery cells by a goodmargin. Electric cars come with expensive battery packs and their highcost often forces the makers of these cars to use small battery packs.The use of small battery packs reduces the cost of the vehicle, but thespeed of the car gets affected. In order to improve the performance ofthe battery at a low price, Yu-Guo, a professor of chemistry at theChinese Academy of Sciences in Beijing, and his team at Wuhe have comeup with an idea to improve the properties of lithium-iron phosphate,which is widely used as electrode material in lithium-iron batteryacross the globe.
Lithium-iron phosphate has very low conductivity and that’s why itis not of any use but we can increase its conductivity by mixing theions into fine nanoscale powders. When the particles get small aftermilling lithium ions, which are basically electrons will start moving in and out of them at a rapid pace. But this whole process is costly,because it is not easy to work with this powder. Guo has come up with asolution. The Chinese scientist is using iron-phosphate nanoparticles,which can be packed closely without much difficulty and they have highconductivity.
Guo is yet to reveal details but claims that the materials are costeffective because they cost around 10 to 20 percent more than bulklithium-iron phosphate. Now you must be thinking, why to invest moremoney. Here is the answer. These materials pack twice as much power asthe bulk material, which means they can double the energy storagecapacity. To conclude, we must say, good job Mr. Guo.
Via: Technology Review