What is the development direction of energy storage technology innovation

The release of a new generation of S³ liquid-cooled energy storage system has attracted industry attention. This represents a breakthrough step for energy storage from design safety, application safety to operation and maintenance safety.

In recent years, under the wave of new power system construction, the scale of the energy storage market has exploded, energy storage companies have increased their layout, and new technologies and new products have emerged one after another.

High-performance, low-cost key energy storage technologies are gradually being localized, energy storage system integration, cell safety, and intelligent operation and maintenance levels are gradually optimized, and emerging energy storage such as heat storage, seawater energy storage, compressed air energy storage, and flywheel energy storage technology keeps emerging.

The innovation of new energy storage technologies and new products has further broken technical barriers and strengthened the initiative in market competition.

New technology surge

The energy storage industry has gradually entered the stage of large-scale development, and innovative energy storage technologies are emerging.

In terms of energy storage system integration, liquid-cooled energy storage systems are gradually emerging, and may become the mainstream of energy storage systems in the future.

Liquid-cooled energy storage systems are safer, more reliable, and smarter than traditional air-cooled energy storage systems, and can achieve high-density integration of the system, further reducing the probability of battery thermal runaway.

Effectively improve the all-round safety of the energy storage system and the life of the energy storage battery. In terms of safety, the system has a six-layer safety design, which can ensure no omission of safety precautions;

In terms of intelligence and efficiency, the cluster-level controller and intelligent temperature control balance control technology can effectively suppress the probability of thermal runaway and improve the life of the system; in terms of simplicity and flexibility, it can meet the requirements of parallel arrangement of multiple units, saving more than 40% of the floor space.

The liquid-cooled energy storage system launched by Kehua Shuneng has made great breakthroughs in the safety and economy of energy storage battery cooling technology. At the same time, emerging energy storage technologies such as heat storage, hydrogen energy storage, seawater energy storage, compressed air energy storage, and flywheel energy storage are also being promoted, and many new energy storage technology application scenarios have been implemented.

In January this year, the first national demonstration project of 100-megawatt advanced compressed air energy storage in Zhangjiakou International, Hebei Province was successfully connected to the grid and entered the live commissioning stage of the system. The application of flywheel energy storage with “first frequency modulation” successfully passed the acceptance before grid connection.

Promote cost reduction and efficiency increase

The innovative development of technology will directly drive the cost of energy storage to be further reduced. At present, the price of energy storage raw materials such as lithium carbonate is rising, and downstream energy storage users are calling for price reduction, which has led to the difficulty and pressure of cost reduction in the energy storage industry in recent years, and the problem of cost dredging has become increasingly prominent.

The innovation of energy storage technology is the main driving force for reducing the cost of energy storage. On the one hand, technological innovation and development can effectively replace low-cost materials and reduce the upstream cost pressure of energy storage;

On the other hand, technological progress can greatly improve the efficiency of the energy storage system, increase the life cycle of the energy storage battery, and improve the power density of the energy storage system, thereby reducing the cost. “Liu Yong emphasized.

Compared with traditional energy storage systems, the new generation of liquid-cooled energy storage systems has higher efficiency and lower cost. The charging and discharging capacity of the system throughout the life cycle is increased by more than 6%, the annual system utilization rate is as high as 99%, the heat dissipation power consumption can be reduced by more than 30%, the power density can be increased by 100%, and the initial investment cost can be reduced by more than 2%.

The improvement of the overall efficiency of the energy storage system will greatly reduce the cost of the energy storage system. Compared with the traditional air-cooled energy storage system, the levelized energy storage cost of the liquid-cooled energy storage system can be reduced by 15%. In the future, the energy storage system will have a relatively large space for cost reduction in terms of cooling technology, fire protection technology, and system integration.

Broaden application scenarios

At present, new energy storage technologies are developing rapidly, but there is still a certain gap between the existing technology level and the large-scale commercial market demand, and there is still room for improvement in the industrial chain, supply chain, and system integration technology.

At present, the power density of the energy storage systems in use in China is not ideal, the overall efficiency of charging and discharging in the entire life cycle of the energy storage system is not high, and the level of energy storage safety management still needs to be further improved.

In the future, the development direction of electrochemical energy storage should follow the creation of high-density, high-efficiency, low-risk, low-cost, and rapid demand-response energy storage systems.

The energy storage technology has a wide range of applications and can be integrated with new energy, urban emergency power supply, 5G base station backup power supply like UPS lithium battery, border guard posts, military-civilian integration and many other aspects.

When exploring the application directions of various energy storage technologies, we should aim at different energy storage application scenarios such as smart microgrids and virtual power plants. On the premise of taking into account the safety and cost of energy storage, we should identify the demand positioning, and explore suitable energy storage according to the application scenarios. technical route.

The characteristics and scope of application of various energy storage technologies are different, and the application needs to be considered in combination with specific industrial development requirements and environmental characteristics.

While realizing the diversification of energy storage technology in the future, it can also combine AI algorithms, intelligent equipment, etc., to strengthen the intelligent upgrade of energy storage system integration technology, control technology, safety management, etc., and further improve the security level.

If you want to know about the leading companies in the energy storage battery industry, you can refer to Top 5 energy storage battery companies.