HiTHIUM Energy Unveils Industry-Defining ∞Cell 587Ah Battery and 6.25MWh Energy Storage System at ESIE 2025

At the 13th Energy Storage International Conference and Expo (ESIE 2025), HiTHIUM Energy Storage made waves by launching its groundbreaking ∞Cell 587Ah lithium-ion (LFP) battery (dimensions: 73.5×286×216mm, W×L×H), alongside the new ∞Power 6.25MWh 2h energy storage system built to house it.

The 587Ah ∞Cell is now being sampled globally as of April 2025, while the 6.25MWh system is set for mass production in the second half of the year.

A New Standard for Energy Storage Batteries

In a rare industry-first, HiTHIUM Energy Storage partnered with five leading supply chain companies to co-exhibit and align on the physical standard of the 587Ah cell. This marks the first time multiple manufacturers have collectively defined the dimensions of a high-capacity battery, laying the foundation for standardized, scalable deployment across the energy storage sector.

Why 587Ah and This Specific Cell Size?

Using AI-driven modeling and multi-objective optimization algorithms, HiTHIUM determined that a 4-string, 8-cluster configuration delivers optimal efficiency for 6MWh+ systems. Within this setup, 587Ah capacity emerged as the most cost-effective and system-efficient solution.

The precise size of 73.5×286×216mm was identified as the optimal form factor to achieve high energy density while maintaining safety, longevity, and affordability. Compared to previous 314Ah cells, the new 587Ah version improves volumetric energy density by 6.5%.

Technological Breakthroughs: Safety, Longevity, and Efficiency

The ∞Cell 587Ah battery incorporates a suite of innovations in chemistry, design, and manufacturing:

· 94.5% energy efficiency

· Over 10,000 life cycles

· Fully compliant with GB/T and UL safety standards

· Industry-leading thermal insulation for heat control and runaway prevention

∞Power 6.25MWh: Built for Scale, Safety, and Simplicity

The ∞Power system is built on HiTHIUM’s all-scenario ∞Pack+ platform, offering five key benefits:

· Standardized form factor for 20ft containers

· Tool-free maintenance via plug-in active balancing—cutting downtime by 90%

· Advanced 3-way shut-off valves enabling liquid cooling system repairs without draining

· Double-layered safety architecture with SIL2-certified BMS and thermal isolation

· 15% smaller footprint compared to traditional 5MWh setups

This next-gen platform helps integrators lower R&D costs while delivering ultra-large capacity, enhanced safety, and ultra-low total cost of ownership.

Leading the Charge Toward Industry-Wide Standardization

By partnering with industry leaders to define the standard size for 587Ah cells, HiTHIUM Energy Storage is not just launching a product—it's reshaping the blueprint for high-capacity energy storage. The company is driving the industry forward with a clear commitment to lowering energy costs, setting new safety benchmarks, simplifying system maintenance, enhancing adaptability across diverse applications, and leading the charge in sustainable energy solutions.