The all vanadium flow battery is a new energy storage system that stores electrical energy in the form of chemical energy based on the oxidation-reduction reaction of vanadium ions in different valence states. This modular green "power bank" has the characteristics of large capacity, long-term energy storage, high safety, long cycle life, and independent power and capacity. It is currently the preferred technology for large-scale storage of clean energy such as wind power and photovoltaics.

In order to meet the huge demand for energy storage in the special scenarios of the oil and gas industry, the energy storage team of the Engineering Materials Research Institute has overcome the industry problems of low electrode activity, poor electrolyte stability, and high interface impedance of all vanadium flow batteries after more than 3 years of basic research. They have independently designed and integrated prototypes of all vanadium flow batteries with different powers, and built integrated photovoltaic and storage grid connected and off grid demonstration power stations in our unit and the Yuebei 1 well of Qinghai Oilfield Oil Production Plant, respectively, to build a high-power all vanadium flow energy storage system multi scenario testing platform.

In mid October, with the support and cooperation of Qinghai Oilfield Oil and Gas Technology Research Institute, Exploration Division, and Oil Production Plant 1, the energy storage team of the Engineering Materials Research Institute broke through multiple technical barriers. For the first time, under extreme working conditions such as high altitude, extreme cold, pure off grid, weak signal, and 24-hour uninterrupted power supply, they adopted independently developed all vanadium flow batteries and innovatively designed flexible DC bus microgrid topology architecture. Through real-time remote monitoring, they achieved all-weather and all green power supply to unmanned remote well sites.