##The development of four group standards in the energy storage sector for 2023 has been fully launched.
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In March 2022, the National Development and Reform Commission and the National Energy Administration jointly issued documents such as the "Guiding Opinions on Accelerating the Development of New Energy Storage," the "14th Five-Year Plan for the Development of New Energy Storage," and the "14th Five-Year Plan for Scientific and Technological Innovation in the Energy Sector." These documents call for promoting diversified development of energy storage technologies. As a strategic emerging industry with advantages in technological innovation, energy storage is an important technology and foundational equipment for building new power systems, and it plays a crucial role in achieving carbon peak and carbon neutrality goals. By 2025, the installed capacity of new energy storage is expected to exceed 50 million kilowatts, with a cumulative total of around 40 GW; after 2025, the annual installation growth of electrochemical energy storage is projected to remain between 12–15 GW. It is anticipated that by 2030, the installed capacity of electrochemical energy storage will reach 110 GW.
With the support of various national policies, the electrochemical energy storage industry is set to embrace significant development opportunities. The Energy Storage Applications Branch of the China Chemical and Physical Power Sources Industry Association plans to initiate the formulation of four group standards in the energy storage field: "OPzV Solid Lead-Acid Batteries for Energy Storage Stations," "Safety Testing Standards for Lithium-Ion Batteries Used in Energy Storage," "Technical Specifications for Energy Management Systems in Electrochemical Energy Storage Stations," and "Liquid-Cooled Radiators for Energy Storage Batteries." Industry representatives including battery manufacturers, upstream and downstream suppliers, research institutions, and universities are invited to participate. The details of the projects are as follows:
1. "OPzV Solid Lead-Acid Batteries for Energy Storage Stations"
Currently, lithium battery safety accidents are occurring frequently both domestically and internationally, posing a severe and complex challenge to safe production. This has renewed calls for strict safety management in energy storage stations. In light of these painful lessons, it is necessary to develop "highly safe, low-cost, and sustainable" electrochemical energy storage technologies oriented toward market applications, in order to address existing safety, cost, and sustainable resource utilization issues in the industry. OPzV solid lead batteries represent renewable energy storage technologies developed based on principles of "long-life design, low-carbon manufacturing, safe operation and maintenance, and green recycling." They offer advantages such as high safety, long lifespan, and recyclability, helping to reduce the overall lifecycle cost of systems. Having passed market validation, they are suitable for use in new power systems and can contribute to achieving the dual carbon goals. At present, as a new technical route and product in the new energy storage market, OPzV solid lead batteries lack standardized guidelines in the industry. To regulate competition in the energy storage battery market, enhance quality control of energy storage systems, and provide standards for the design, selection, and verification of OPzV solid lead batteries in such systems, there is an urgent need for relevant standards to guide their research, development, production, and application.
2. "Safety Testing Standards for Lithium-Ion Batteries Used in Energy Storage"
Driven by the “dual carbon” goals, the energy structure is accelerating its transition toward cleaner sources. Due to the intermittent and volatile nature of renewable energy sources such as wind and solar power, as well as the fluctuations on the electricity consumption side, ensuring and balancing stability on both sides of the power supply-demand chain has become a critical challenge that must be addressed now and in the future. Developing efficient and safe energy storage technologies is the key solution to these issues.
III. Technical Specifications for Energy Management Systems of Electrochemical Energy Storage Stations
The energy management system (EMS) of electrochemical energy storage stations serves as the intelligent management component of such systems, primarily responsible for the safe and optimized scheduling of battery energy. It offers comprehensive monitoring and management functions for energy storage stations, covering detailed information such as grid connection, PCS, BMS, on-site step-up substations, and fire protection systems. These functions include data collection, processing, storage, querying, analysis, visual monitoring, multi-functional coordination, AGC/AVC, primary frequency regulation, dynamic voltage regulation, alarm management, and statistical reporting. The EMS can monitor battery performance in real time and conduct historical technical analyses. Based on these insights, it employs intelligent allocation strategies to control charging and discharging of battery packs, thereby optimizing performance, extending battery life, and delivering significant economic benefits.
IV. Liquid-Cooled Radiators for Energy Storage Batteries
In recent years, with the successive launch of new energy projects, upstream customers have become more sensitive to cooling costs and are placing greater emphasis on the safety performance of materials. As a result, the share of lithium-ion battery storage, sodium-ion battery storage, and solid-state battery storage continues to rise. With the rapid adoption of lithium-ion batteries in areas such as energy storage stations and 5G base stations, their market share in energy storage applications has increased from 5.1% in 2019 to 6.4% in 2020, representing a year-on-year growth of 1.3%. Liquid-cooled heat sinks for energy storage batteries have once again attracted widespread attention, with a rapid increase in patent applications.
Tip:
If you are interested in participating in the development of these four group standards, please provide feedback to the association by April 30, 2023. Organizations involved in standard development must pay support fees for the standard working group. These liquid-cooled heat sinks can manage the temperature of energy storage batteries by circulating a cooling medium in conjunction with water pumps, or they can be used alongside water chills to achieve even better thermal management performance. By selecting appropriate cooling media and improving sealing capabilities, such heat sinks address shortcomings such as poor circulation efficiency and limited operating conditions associated with traditional liquid-cooled systems. Domestic energy storage companies, including CATL, Sungrow Power Supply, and Kehua Data, have successively launched plans to increase mass production, accelerating the industrialization of liquid-cooled heat sinks for energy storage batteries.