On December 10, EVE Energy announced the operational launch of its 60 GWh super energy storage plant, accompanied by the start of mass production for its groundbreaking “Mr. Big” battery cell, which exceeds 600 Ah in capacity. This new facility ranks as one of the largest of its kind in the industry, reinforcing EVE Energy’s commitment to advancing large-scale energy storage solutions.
The development of Mr. Big represents a significant leap forward, following the company’s initial 560Ah cell introduced in 2022. Now reaching 628Ah, Mr. Big aligns with the industry’s need for higher capacity, enhanced cost efficiency, simplified integration, and improved safety. However, the shift toward larger battery cells requires addressing challenges in thermal management and performance optimization.
To overcome these hurdles, EVE Energy collaborated with Professor Yang Hanxi of Wuhan University. Drawing on electrochemical principles and “low drag” engineering concepts, the company refined internal components—including collection mediums, tab placement, and terminal shapes—to reduce resistance and heat generation. Simultaneously, EVE Energy introduced intelligent battery cell technology, enabling real-time monitoring of key parameters like gas release and temperature. Any deviations prompt immediate warnings and protective actions, bolstering overall safety.
The 60 GWh super energy storage plant embodies a fully digitized, automated approach, supported by digital twin technology. The facility integrates more than 80 industry-leading technologies and holds 140 related intellectual property rights. Production lines operate at remarkable speed, producing 1.5 battery cells per second, assembling four complete battery packs every minute, and filling over 40 containers of 5 MWh daily. By taking advantage of the region’s industrial ecosystem, EVE Energy streamlines supply chains, reduces logistics costs, and enhances operational efficiency.
A stringent manufacturing standard system, combined with AI-driven image databases, knowledge graphs, and advanced analytics, ensures maximum consistency and product traceability. Each battery cell receives a comprehensive data package—often referred to as a “battery passport”—for tracking throughout its lifecycle.
Source: EVE Battery News
