Questions and Answers on Energy Storage | How does the energy storage system cope with weather challenges when the "quick freezing" mode is activated across the country?

The China Meteorological Administration mentioned at a press conference in early November that in the face of extreme weather, it is necessary to prevent the adverse impact of cold air on energy supply. It is recommended to prepare energy reserves and maintenance of power transportation equipment in advance, and formulate emergency protection plans.

As we all know, the operating environment temperature has a great impact on the available capacity of lithium iron phosphate batteries. Low temperature will lead to increased electrolyte viscosity, electrolyte crystallization, decreased ion conductivity, difficulty in deintercalating lithium from the negative electrode, and lithium precipitation on the surface of the negative electrode. , The migration rate of lithium ions between the positive and negative electrodes slows down, and the internal resistance increases.

The optimal working temperature of the lithium iron phosphate battery energy storage power station is 15~35 degrees, and the working temperature range covers -20~60 degrees. Therefore, in a low temperature environment, it is necessary to take thermal insulation measures for the battery compartment and configure a heater. Ensure the safe and efficient operation of energy storage equipment.

More importantly, if the lithium iron phosphate battery is stored for a long time or operated in an extremely low temperature environment, it may cause irreversible permanent damage, causing huge safety risks and economic losses.

At present, whether it is new energy distribution storage, oil field off-grid distribution storage, or base station + energy storage, prefabricated cabins are mainly integrated with outdoor layout, and the ambient temperature of the battery cabin is maintained by configuring industrial air conditioners.

The worry-free energy storage series products developed by Aopu Energy Technology are not only equipped with the mainstream air-cooled temperature control system in the market, but also can be upgraded to a more stable and efficient liquid-cooled module. Different outdoor conditions and severe temperature changes ensure the low-temperature performance of the product.

In addition, OP Ocube is equipped with OP-Energy Cloud energy management platform. Through advanced sensor technology and refined data collection, it realizes the efficient linkage of software and hardware of the energy storage system. It can not only achieve real-time temperature Feedback can better ensure the working temperature of the battery cluster and the overall temperature balance of the power station, and improve the consistency and safety of the system.

At present, large-scale energy storage power stations are generally deployed in Inner Mongolia, Qinghai, northern Hebei and other places rich in wind and solar resources to meet the needs of new energy grid connection. OPPO's worry-free energy storage series products have been successfully applied to an oilfield demonstration project in Qinghai. And provide a full range of energy management services.

Since 2020, extreme weather has occurred frequently, and the transformation of energy structure in order to reduce "carbon emissions" has also intensified the pressure on energy security. Energy storage systems need to take precautions. OP Energy Technology will continue to accelerate technology research and development and product iterations to promote energy storage further improvement of the market.

Original title: Energy storage knowledge question and answer | The "quick freezing" mode is turned on across the country, how can the energy storage system cope with weather challenges?