Energy density, charge and discharge more times, long life, high-performance batteries is the development of electric vehicles and high-performance communications and electronic equipment of the key technologies, according to the German "World News" reported that German-American cooperation in the field of high-performance battery R & D competition , sought to break through key technical bottleneck as soon as possible, to seize the technological high ground, has made a number of very promising research results.

     Northwestern University research team developed a new type of battery energy density lithium-ion batteries can reach the current 10 times, the key technology is the development of silicon with carbon electrodes made ​​of new materials, technologies and fast charging and high-density energy storage. But the main problem is that the battery energy storage capacity decreased rapidly after 150 charge-discharge, which decreased by 50%.

     Researchers at the University of M¨¹nster, Germany developed a lithium - air batteries, the principle is the lithium battery through a chemical reaction with oxygen to generate electricity, the advantage is accounted for by using thin-film electrode replacement lithium-ion batteries currently used in most of the weight of the carbon - metal grid electrode, greatly reduce the battery weight. But the problem is that this battery lithium reacts with oxygen will produce explosive compounds, safety and reliability to be increased.

     Germany's Karlsruhe Institute of Technology Carl (KIT) developed a new cell demonstration unit, the principle is the use of fluoride and metal reaction producing electricity, the advantage of light weight, long life, simple production technology, in particular, alternative prices lithium increases.

     Lawrence Berkeley National Laboratory, USA, developed a silicon anode material, lithium-ion adsorption ability of the graphite electrode is used eight times. However, outstanding issues, this electrode volume expansion in the charging process, affecting the electrode life. To solve this problem, Lawrence Berkeley National Laboratory researchers have developed a polymer with a conductivity with a high capacity lithium-ion adsorption, but a lower rate of expansion to meet the conditions of actual use of the battery. Clemson University and the United States, Georgia Institute of Technology are being developed with the use of seaweed material class features of the new Department of electrode material.