Haichan’s 587Ah Energy Storage Battery Sets New Standards for the 3.0 Era in Energy Storage Solutions

Safe and Compact: The Haichan 587Ah Energy Storage Battery Sets a New Benchmark for the 3.0 Era

As the global energy storage market continues to expand, there is an increasing demand for systems with greater capacity and higher efficiency. The trend of “reducing costs and increasing efficiency” has become a significant focus in the industry. Matching ultra-large capacity batteries and enhancing the energy density of storage systems are crucial strategies for achieving optimal cost reduction. Particularly during this transformative period in the energy storage sector, battery manufacturers must innovate and upgrade to enhance their competitiveness. Leading companies are actively seeking better solutions for large-capacity batteries.

During the recent EISE 2025 Energy Storage Exhibition, it was observed that many companies showcased larger capacity cells, with products exceeding 500Ah, 600Ah, and 700Ah, alongside systems of 6MWh, 7MWh, and 8MWh. The growing numbers have created a thick fog, hindering the industry’s quest for the ideal battery capacity and size. Amidst this uncertainty, Haichan Energy Storage has provided a benchmark answer with its next-generation ∞Cell 587Ah high-capacity energy storage battery and the compatible ∞Power 6.25MWh 2-hour storage system.

The ∞Cell 587Ah battery features a design with dimensions of 73.5286216mm (WLH), achieving a volume energy density of 415Wh/L, which is a 6.5% improvement over the previous generation 314Ah battery. Haichan Energy Storage believes that as energy storage applications diversify, the coexistence of multiple specifications will continue due to varying needs across different scenarios and customer requirements. In the short term, this may increase the design costs and operational complexity of system integration, but it also drives companies to accelerate the exploration of modular and intelligent solutions. In the long run, the industry will undergo a phase of specification convergence, ultimately establishing a pattern of “core specifications leading plus scenario-specific adaptations” to balance technological diversity and system economics.

According to reports, recent fire safety design standards in certain regions of China have proposed a requirement for safety zoning at 50MWh, which aligns perfectly with eight 6.25MWh storage systems. From a market demand perspective, this capacity significantly reduces fire safety operational costs and infrastructure building costs during the EPC construction process. Additionally, for international markets, the designed weight of the 6.25MWh system is 48 tons, which aligns well with the maritime lifting limit of 50 tons.

For battery manufacturers, finding the 6.25MWh optimal capacity design is not particularly challenging; the real difficulty lies in achieving high integration of the energy storage system from the cell perspective. As a benchmark enterprise in the energy storage battery field, Haichan Energy Storage has based its innovations at both the cell and system levels on a deep understanding of reaction kinetics, forming a comprehensive development logic that encompasses both forward and reverse development from cells to systems and vice versa.

Previously, Haichan Energy Storage launched the industry-first 1175Ah battery and the ∞Power 6.25MWh 4-hour battery system, primarily designed for applications lasting four hours or more. To cater to the two-hour application needs in the energy storage market, Haichan Energy Storage developed a 6.25MWh product solution based on the ∞Pack+ all-scenario high-capacity storage platform, utilizing reverse decomposition with the 1175Ah battery. This solution considers standard 20-foot container sizes, the weight limit for maritime shipping, mainstream 1500V voltage PCS compatibility, and critical factors like electrochemical properties and system architecture design. This led to the derivation of the 73.5286216mm (WLH) optimal size for the ∞Cell 587Ah energy storage battery and its system product.

Haichan Energy Storage emphasizes that the 73.5286216mm size not only optimizes physical space utilization but also offers significant convenience for future system integration and expansion, achieving a balance between performance, safety, and economic efficiency. The “587Ah capacity” is expected to become the optimal solution for efficiency and cost in large-capacity system integration.

The energy density of lithium batteries is a core parameter for measuring battery performance, akin to the “energy password” of a battery, influencing the lifecycle and overall performance of battery packs. Haichan Energy Storage indicates that within the current lithium iron phosphate system, higher energy densities are often accompanied by system cycle losses, potentially compromising cycle life and safety margins. Therefore, Haichan Energy Storage has chosen 415Wh/L as the golden balance point for energy density to ensure the battery’s round-trip efficiency (RTE) and maximum cycle life, optimizing revenue throughout the entire lifecycle of energy storage operations.

In the ongoing pursuit of advancements in battery cells, Haichan Energy Storage has conducted extensive iterative optimizations and innovations in aspects such as positive and negative electrode materials, electrolyte formulations, and structural processes. The ∞Cell 587Ah energy storage battery features a four-winding design that significantly improves the internal stress characteristics of the cell. Recent optimizations to the tab structure have reduced the internal resistance of the cell to below 0.3 milliohm, with a cycle energy efficiency exceeding 94.5% at a 0.5P rate.

At a material design level, Haichan Energy Storage has utilized new additives to construct a uniform, dense organic/inorganic hybrid SEI film, isolating the anode from direct contact with the electrolyte, thereby significantly enhancing anode stability. In the rapidly evolving energy storage industry, various technology routes and product specifications are emerging. However, only those meeting the rigorous standards set by the market and leading industry players have the potential to become mainstream.

Notably, five leading companies in the industry jointly exhibited the Haichan Energy Storage ∞Cell 587Ah battery, collectively promoting its large-scale application. The collaboration among multiple leading companies not only recognizes the existing product but also signifies that the advocated dimensions of 73.5286216mm (WLH) and the associated technological framework and application solutions have received positive responses from core industry players. This is expected to gradually elevate this size to an industry standard, providing robust support for the large-scale and standardized development of the entire energy storage sector.

Ecological Reconstruction! Pioneering the Energy Storage 3.0 Era!

With the release of policies such as Document No. 136, the energy storage industry, alongside new energy, has entered the 3.0 era. In this context, the technological iteration of large-capacity batteries and system integration solutions has become a strategic choice for companies to adapt to market trends. Throughout this process, standardized compatibility and ecological collaboration will be essential for the industry to transition from extensive expansion to deep value cultivation.

Haichan Energy Storage believes that the ∞Cell 587Ah energy storage battery, as a core product of current energy storage technology iteration, embodies the integration of industry practices and technological trends. Its value is fundamentally a result of the deep coupling between technological characteristics and scenario demands, aiming to achieve the optimal solution for technical economics in short to medium-term storage scenarios. With long cycle life and high-pressure platforms, it serves as a “stabilizer” for peak regulation in grid scenarios. Leveraging high energy density and rapid response capabilities, it acts as a “profit engine” for arbitrage in commercial and industrial settings.

The release of the 587Ah battery represents not only a technological breakthrough for a single product but also reflects an open and cautious attitude towards the diverse competition of next-generation large-capacity battery specifications. Its core logic can be summarized as “differentiated technological breakthroughs” and “ecological collaborative evolution.” This strategy stems from a profound insight into industry trends and showcases the company’s unique perspective on technological pathways.

As capacities increase, the iteration of products and overall system performance improvement face limitations. Based on its assessment of future trends in energy storage products, Haichan Energy Storage has redefined the concept of energy storage product integration, breaking away from traditional product thinking. In 2024, in response to the industry’s trends for “large capacity” and “scenario-oriented” energy storage products and technologies, Haichan Energy Storage will introduce the ∞Pack+ all-scenario large-capacity storage platform. The ∞Pack+ platform boasts five key advantages: large capacity, standardization, platform-based design, scenario applicability, and maintainability, redefining the standard specifications for industry pipelines and connections.

By decoupling functional modules within the system and establishing standardized interfaces, the platform promotes specialization in tasks such as electricity, thermal management, control, fire safety, and power handling, enabling independent evolution of each module. This encourages the specialized development of module technologies and collaborative innovations, reconstructing the ecosystem and empowering coordination and collaboration between upstream and downstream enterprises in the industry, thereby building strength for the energy storage 3.0 era!

Grounded in deep technological research, Haichan Energy Storage is creating a closed-loop system through the ∞Pack+ platform that integrates scenario demands, cell innovations, system decoupling, and ecological collaboration. This strategy, which replaces parameter-heavy competition with scenario customization capabilities, is reshaping the industry’s value distribution logic. From product competition to ecological reconstruction, the launch of the 587Ah battery not only demonstrates Haichan Energy Storage’s technical prowess but also signifies a new phase in the Chinese energy storage industry, focused on deepening value. Through a three-step approach of “material innovation, system design, and ecological co-construction,” Haichan Energy Storage is steering the industry towards a more efficient, safer, and economically viable future. In the global quest for carbon neutrality, this revolution in energy storage, led by Chinese enterprises, is writing new rules for the industry.