Hithium starts manufacturing ‘world-first’ 1175Ah cell as industry ‘enters era of LDES’

June 13, 2025
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Energy storage-focused lithium-ion OEM Hithium has started mass production of the world’s first 1,000Ah+ battery cell, which it is targeting for long-duration energy storage (LDES) applications.

The China-headquartered firm has started the production of its ‘Cell 1175Ah’ product at its manufacturing facility in Chongqing, central China, it said this earlier this week (11 June).

The 1175Ah capacity is a significant increase on the current most popular form factor of 314Ah cells used in battery energy storage system (BESS), and nearly twice a new, higher form factor of around 600Ah that many BESS providers have announced they are using in recent months.

Hithium said the development of the cell featured breakthroughs in wide-width thick coating precision, large-electrode stacking efficiency, an original cell structure design, improved back-end cell manufacturing efficiency and greater consistency in cell wrapping.

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In the same announcement, Hithium said it has signed a strategic cooperation agreement with Israel-based engineering, procurement and construction (EPC) firm El Mor for a long-duration energy storage (LDES) project in Romania. Romania is supporting the deployment of energy storage resources with EU funding, recently awarding capex support to around 2.5GWh of projects.

Hithium said that its 1175Ah cell is poised to become a new benchmark in the energy storage industry as it enters a new era of LDES.

The firm announced a new 6.25MWh BESS product using the 1175Ah cells at the ees Europe trade show and conference in Munich, Germany, last month. Then at the start of June, it announced that it had started manufacturing battery modules and BESS units at a facility in Texas, US.

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