RE: Vanadium9 Aug 2019 14:45
LARGE SCALE BATTERY!
The development of Vanadium rechargeable batteries
Introduction
Yamato Energy Laboratory has studied extensively for the development of vanadium rechargeable batteries. The purpose is to develop a secure and high energy density battery for hybrid automobiles, to develop an eco-battery replacing the lead battery and to develop a large scale battery for smart grid. We are willing to supply these technologies in the world.
Since vanadium possesses four different oxidation states, rechargeable batteries can be made using the oxidation-reduction reactions between these oxidation states. The redox flow battery in sulfuric acid solutions has been long known. However, this battery has a merit of using vanadium metal only, but has also a demerit of the decrease in functional activity due to the precipitations of vanadium salts. The development of vanadium battery, particularly for a complete solid battery, is fundamentally difficult until sulfuric acid is used.
Under the present circumstances, we have studied vanadium batteries based on a new concept and achieved the following development:
Development of a secure solid battery for hybrid automobiles
Development of an echo and light battery replacing the lead battery
Development of a large scale battery for smart grid