According to EnergyTrend, the 18th Shenzhen International Battery Fair & Exhibition (CIBF 2026) was held in Shenzhen from May 13 to 15. Our on site inspection covered a wide range of new battery products and cutting edge energy storage solutions.
Exhibitors showcased strong technological competitiveness with products including BYD’s 2710Ah Blade Battery, Sunwoda’s mass produced 684Ah stacked cells (over 2 million units shipped), Shuangdeng’s 755Ah semi solid state energy storage system, and China Sodium Battery’s world first 588Ah large format sodium ion cell.
In addition, major energy storage cell manufacturers such as REPT BATTERO, EVE Energy, Ganfeng Lithium and Great Power presented their flagship products to meet full scenario energy storage demands.
Combining insights from ESIE 2026 Beijing Energy Storage Exhibition in April and CIBF 2026, it is evident that 587Ah and 588Ah have become the mainstream next generation utility scale energy storage cell specifications being rolled out widely.
Among key exhibited products, 587Ah and 588Ah are the two most concentrated capacity segments targeted by leading cell makers.
As observed through multiple on site visits by EnergyTrend, the 587Ah battery, first proposed by top manufacturers including CATL and Hithium, has achieved mass production and delivery. Other exhibitors launching 587Ah products include Great Power, Envision Energy,Youngy Co., Ltd., Pengcheng Wuxian and Higee Energy.
Alongside 587Ah cells, 588Ah has also been adopted by multiple leading cell producers. CORNEX, REPT BATTERO, Sunwoda, CALB and others highlighted their 588Ah related products, with plans for mass production or bulk delivery within 2026.
Moreover, high capacity energy storage cells of 600Ah and above have become a major industry trend. Cell products from Envision Energy, EVE Energy, CALB, Sunwoda, Gotion High tech and Hithium range from 628Ah to 790Ah, with some already mass produced and delivered.
Notably, BYD’s 2710Ah energy storage specific Blade Cell, currently the world’s highest capacity cell, features ultra large capacity, high integration and low cost. It has entered large scale delivery in 2026, with its first batch of Haohao systems deployed in energy storage projects across multiple provinces, mainly for large scale power side and grid side power stations.
In addition, the industry features diversified technical routes and accelerated industrialization of sodium ion batteries. Multiple enterprises showcased new sodium ion products, with a markedly higher number of energy storage sodium ion battery exhibits compared with previous years.
CATL, Great Power and China Sodium Battery Group displayed new products, signaling that sodium ion batteries are shifting from technological R&D toward product verification and real world deployment.
Source：EnergyTrend