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Energy Storage

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17 Apr 2025

Hithium Debuts 587 Ah Cell and 6.25MWh Storage System

17 Apr 2025  by pv magazine   
At the 13th Energy Storage International Conference and Expo (ESIE2025) held in Beijing last week, Chinese battery energy storage company Hithium unveiled its latest innovation: the ∞Cell 587Ah energy storage cell and the accompanying ∞Power 6.25MWh 2-hour storage system. The company also shared that global sampling of the ∞Cell began in April 2025, with mass production of the ∞Power system scheduled for the second half of 2025.

Hithium’s engineers highlighted the reasoning behind the 587Ah cell design during the presentation. They emphasized practical considerations that shape energy storage solutions, including container size limitations, a 50-ton weight cap for maritime transport, a 1500V system voltage limit, and the performance traits of lithium iron phosphate (LFP) chemistry. Instead of pursuing higher capacity for its own sake, Hithium focused on optimizing the cell within these real-world constraints. By factoring in the dimensions of a standard 20-foot container and shipping weight limits, the company developed a cell that balances efficiency and practicality.

The ∞Cell 587Ah is designed to enhance energy storage performance while adhering to industry standards, ensuring compatibility with existing infrastructure. The ∞Power 6.25MWh system, built around this cell, offers a robust solution for large-scale energy storage applications, supporting the growing demand for reliable and sustainable energy systems.

Hithium’s approach reflects a commitment to addressing technical challenges through thoughtful engineering. The launch at ESIE2025 underscores the company’s role in advancing energy storage technology, contributing to global efforts to improve renewable energy integration and grid stability. With global sampling underway and mass production on the horizon, Hithium is poised to deliver practical, high-performance solutions to the energy storage market.

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