CORNeX unveils 472 Ah LFP cell enabling more than 7 MWh in a 20-foot container

On March 28, CORNeX, a lithium battery maker headquartered in Hubei Province, unveiled its fourth-generation ​ lithium iron phosphate (LFP) energy storage cell with a capacity of 472 Ah.

Measuring ​74mm×220mm×225mm, the cell builds on the architecture of its predecessor, the ​314Ah “Long π” cell, preserving its proprietary material formulations and automated production processes. This continuity ensures ​high reliability, thermal stability, safety compliance, and manufacturing consistency, while achieving a quantum leap in performance, the manufacturer said.

The ​1,510.4 Wh nominal energy per cell marks a ​50% surge over the 314 Ah model, driven by a ​195 Wh/kg gravimetric energy density and ​420 Wh/L volumetric density, figures that edge tantalizingly close to the theoretical ceiling for LFP chemistry.

Under rigorous testing, the cell demonstrates ​12,000 full charge-discharge cycles at ​70% state of health (SOH), extendable to ​15,000 cycles via CORNeX’s patented ​cathode pre-lithiation technology. Crucially, it sustains ​zero performance degradation even in ​35°C ambient environments, a critical advantage for deployments in tropical regions or industrial settings with limited cooling infrastructure.

When integrated into 1,500 V energy storage systems, a standard ​20-foot container packed with 472 Ah cells delivers ​6.28 MWh of capacity, 40% higher than previous iterations, with scalability to ​6.9 MWh. This innovation slashes land footprint by ​20%​ and reduces levelized storage costs by ​over 20%​, according to company simulations.

For future-proofing, the design accommodates ​2,000 V high-voltage platforms, pushing single-container capacity to ​7.06 MWh, a ​12.4% boost that positions it as a frontrunner for utility-scale projects.

Capitalizing on mature supply chains and existing gigafactory lines, CORNeX plans ​global sampling from April 25, followed by ​mass production by June 30, leveraging an ​80 GWh annualized capacity to outpace rivals in commercializing jumbo-format cells.

Pre-orders already reflect surging demand: preliminary 2024 data show ​over 30 GWh in energy storage system contracts and ​more than 20 GWh shipments, despite unaudited financials. Analysts note these metrics align with global projections for LFP dominance, expected to capture ​70% of stationary storage markets by 2030.