In 2025, the energy storage industry will reach a critical turning point - the energy storage battery cells, which were once stuck in "paper parameters", will officially bid farewell to the technology competition stage and enter a period of practical testing for capacity release, yield improvement, and project implementation. Leading companies such as CATL, EVE Energy, Yuanjing Power, Haichen Energy Storage, and Xinwangda have successively achieved large-scale mass production and delivery, coupled with the intensive landing of GWh level strategic cooperation and accelerated expansion of overseas markets, marking that high-capacity battery cells have moved from laboratory samples to large-scale commercial applications, and the speed of energy storage systems evolving towards higher energy density and lower costs far exceeds industry expectations. 【
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1、 The competition for mass production of 500Ah+battery cells is intensifying, and top companies are delivering impressive results
2025 will become an explosive year for the mass production and delivery of energy storage large battery cells, with multiple companies involved
batteryEnterprises are accelerating their production capacity ramp up, with intensive landing of 500Ah and above specification products, demonstrating strong commercialization capabilities:
CATL587Ah energy storage dedicated battery cells started mass production in June, with a daily output of over 220000 at the Jining base. As of December, 2GWh of shipments have been completed, and it is expected to reach 3GWh for the whole year, taking the lead in entering the GWh level large-scale commercial ranks;
EVE Energy:After announcing mass production at the end of 2024, 628Ah battery cells will achieve 750000 units offline by 2025. In September, they will be successfully applied to the world's first 100MWh level project - Hebei Lingshou 200MW/400MWh independent energy storage power station, and overseas shipments will be synchronized;
Far sighted Power:The production of 500+Ah battery cells at the Cangzhou factory has achieved "mass production and going global", and the next generation of 700Ah+products has also entered the preparation stage for mass production;
Haichen Energy Storage:Launched the world's first thousand ampere hour battery cell ∞ Cell 1175Ah and achieved mass production. 587Ah battery cells were simultaneously delivered at the Xiamen base. In October, the 6.25MWh energy storage system equipped with thousand ampere hour battery cells was successfully shipped to Europe;
Xinwangda:After starting mass production in September, the 684Ah laminated battery cell achieved its one millionth production by the end of December, highlighting its rapid mass production capability.
In addition,
Chu Nengnew energyPenghui Energy, Zhongchuang Chuanghang, Rongjie Energy, Nandu Power, Guoxuan High tech, Ruipu Lanjun, Ancheng Energy TechnologyEnterprises have also announced production schedules for 500Ah+and 600Ah+products, and it is expected that the competition in the energy storage battery market will be fully upgraded by 2026.
2、 GWh level strategic binding becomes mainstream, highlighting the trend of supply chain collaborative development
With the gradual convergence of battery cell technology, supply chain stability and cost control have become the core of market competition. The cooperation mode between system integrators and battery companies is evolving towards long-term, large-scale, and deep binding. At the end of 2025, heavy orders of 100 GWh level will occur frequently, reshaping the industry cooperation pattern:
Ningde Era and HaibosichuangSign a procurement agreement for a minimum of 200GWh from 2026 to 2028, and 587Ahh battery cells have been applied in the 400MW/2400MWh energy storage project in Baotou for GWh;
Haichen Energy Storage and CRRC Zhuzhou InstituteReached a supply cooperation for 120GWh energy storage products during the 15th Five Year Plan period, covering the full range of products from 314Ah to QianAhh;
EVE Energy and Roche EnergySign a three-year 20GWh cooperation agreement, with 10GWh consisting of 628Ah/588Ah large battery cells;
Sunshine Power and XinwangdaDeep CollaborationThe Powertitan 3.0 energy storage system will be equipped with 684Ah large battery cells.
These long-term strategic partnerships not only ensure the production capacity needs of both parties, but also promote the early collaborative development of systems and battery cells as an industry trend, achieving deep integration of product performance and safety systems, and laying a solid foundation for cost reduction and efficiency improvement of energy storage projects.
3、 Speed up going abroad! China's large battery cells lead the global long-term energy storage market
Relying on the advantages of a complete industrial chain, China's energy storage battery cells are accelerating their global expansion. By 2025, significant achievements will be made in expanding overseas markets, upgrading from single product output to system solution and standard output
CATLThe 4GWh energy storage system with 530Ah battery cells will be supplied to Vena Energy in Singapore;
Yiwei Lithium Energy628Ah battery cells successfully won the EVO Power2.2GWh order from Australia and signed a 1GWh energy storage system project with TSL Assembly;
The global layout of China's energy storage large battery cells not only opens up the overseas long-term energy storage market space, but also enables China's energy storage technology standards and solutions to gain global recognition, demonstrating China's core competitiveness in the global energy storage industry. At present, although 500Ah+battery cells are still in a rapid development period of "diverse sizes and coexisting specifications", the industry consensus is clear: 6MWh+energy storage systems will accelerate the replacement of the previous generation 5MWh+solution, and continue to promote the cost of energy storage per kilowatt hour. From mass production delivery, strategic binding to global project implementation, 2025 undoubtedly becomes the "practical year" for energy storage large battery cells to move from laboratories to power station applications.
4、 Focus on ESIE 2026! Global energy storage industry benchmark, linking professional buyers with core resources
With the rapid iteration of high-capacity battery cell technology and the continuous expansion of the global market, the industry urgently needs an efficient docking platform that gathers cutting-edge technology, market dynamics, and supply chain resources. As a barometer for the development of the energy storage industry,
The 14th Energy Storage International Summit and Exhibition ESIE 2026It will be grandly held at the Beijing Capital International Convention and Exhibition Center from March 31st to April 3rd, 2026.

The 14th Energy Storage International Summit and Exhibition ESIE2026 provides pictures
As of now, a number of industry leaders such as CATL, EVE Energy, Yuanjing Power, Haichen Energy Storage, Xinwangda, Chu Neng New Energy, Penghui Energy, Zhongchuang Chuanghang, Rongjie Energy, Nandu Power, Guoxuan High tech, Ruipu Lanjun, and Ancheng Energy have confirmed their participation in the exhibition. This exhibition will focus on core areas such as energy storage large battery cells, long-term energy storage, energy storage system integration, and integrated light storage and charging. It will create a high-end platform for new product launches, technical exchanges, and business negotiations, providing precise docking channels for global energy storage professional buyers.

The 14th Energy Storage International Summit and Exhibition ESIE2026 provides pictures
Whether seeking cutting-edge technology cooperation, exploring high-quality supply chain resources, or laying out global energy storage projects, ESIE 2026 will be an annual event that industry professionals cannot miss. We sincerely invite global energy storage professional buyers and upstream and downstream enterprises in the industry chain to gather in Beijing to explore new trends in industry development and seize new opportunities for industrial upgrading together!
Exhibition Address: Beijing Capital International Convention and Exhibition Center
Date: March 31st to April 3rd, 2026
Core highlights: Gathering of top enterprises, concentrated launch of new products, precise supply-demand matching, authoritative interpretation of trends

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