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Vanadium battery development and technology updates

Published:2013-06-17

Vanadium battery development and technology updates

Electrochemical energy storage currently used as a mainstream technology including sodium sulfur batteries, lithium vanadium batteries and three kinds of power generation applications for grid energy storage is mainly vanadium batteries and sodium sulfur batteries are two, which is the same into market-proven commercial technologies , then the above vanadium battery technology there are still some problems, still further improvements.
         Today 90% of the existing storage batteries megawatt project are based on the sodium-sulfur batteries, sodium sulfur batteries have close to 200 MW commercial scale, but the sodium-sulfur battery charge and discharge with special control requirements, the need to increase 2-3 fold redundancy terms for lithium storage time is limited, only the grid FM, so the current mainstream or in vanadium battery technology, because the battery capacity and duration of the best performing, some experts said that the main advantages of the vanadium battery high current density is the depth of discharge, long cycle life, rapid charging, the price relative to other energy storage devices inexpensive, vanadium battery is ideal for large-scale static storage.
         According to China's new energy automotive industry development planning and recent industry data estimates batteries, lead-acid batteries, electric vehicle battery, electric vehicle battery three total market is about 300 billion yuan, the vanadium battery energy storage devices for wind power applications and urban energy storage devices market will peak at around 1.1 trillion yuan, but now vanadium battery in storage areas not yet in a dominant position, has yet to break through technical barriers, mainly vanadium battery energy density is low, the volume is large, the distance large-scale energy storage applications, storage costs slightly higher price. Secondly, the high costs also limit the development of vanadium battery current, even in the field of large-scale vanadium storage batteries, is also considered to achieve industrialization will take some time.
         At present the main obstacle to the development constraints of vanadium battery mainly to pay in the end is the vanadium battery or power generation companies, according to the professionals to introduce pay only rationalize this relationship, the vanadium battery will usher in the next 2-3 years, the explosive growth domestic vanadium battery industry will achieve large-scale vanadium energy storage battery industry