Tokyo university, research and development of new materials for battery 'repair' to extend battery life increase capacity

Since August 7 musk on twitter sent a news about the company private, but after 17 days, musk in tesla's official website said publicly will abandon the privatization. This change in tesla's share price has experienced a series of volatile period. The tesla faced a lot of trouble, not only should address the question of how to improve the production to reassure investors and deal with the continued effects of musk improper remarks.

according to foreign media reports, the university of Tokyo in Japan ( 东京大学) Engineers constantly explore new ways to improve the existing battery technology, recently, Atsuo professor Yamada and his team developed a material that can significantly prolong the life of the battery, and let the battery with higher capacity.

from smart phones to the pacemaker to cars, battery to provide power to most of the items in the world, and its importance will be more and more big. Many people think that the battery needs to be improved in two aspects, namely the battery life and capacity ( How much power can be stored) To meet the future needs.

most electronic devices use lithium ion battery, but another based on sodium rather than lithium batteries could soon be widespread. The two batteries because of its constituent materials with unique electronic ways, thus can store and release a large amount of electric charge. But as time goes by, sodium lithium batteries and battery in repeated charge and discharge and the use of loop, storage capacity will be significantly reduced.

ordinary cells have several layers of metal materials, when the battery charge and discharge, the metal layers are degraded and cracks or flakes, lead to stacking fault ( 堆垛层错) To reduce the battery's ability to store and transport charge. When such materials are called van der Waals force, 范德华力) The weak force together, stacking fault occurs.

Yamada and colleagues show that if the battery is in a known as REDOX layer oxide ( Na2RuO3） Materials, can make the degradation of the battery charge and discharge cycle function abate, metal layer can repair themselves, and researchers show that the material will be coulomb force ( coulombic attraction） Hold, this force is much more powerful than the van der Waals force. Yamada said: & other; This means that the battery will not only can have longer service life, and damage level will be lower. To increase the battery energy density is vital for electrified transportation. ”