PHOENICS targets 20% higher-energy LMFP storage

Estimated reading time: 5 minutes · Last updated: 2026-08-21

An Austrian consortium has launched PHOENICS, a 36-month project to develop lithium manganese iron phosphate (LMFP) cathodes for stationary lithium‑ion storage that aims to raise energy density by 20% and service life by 40%. As first reported by ESS News, the project has €2.9 million in funding and targets a technology readiness level of TRL4 at the end of the work. Philip Kargl, PHOENICS project leader, told ESS News the partners will deliver a small prototype cell and a scaled electrode production process to demonstrate scalability and industrial feasibility.

A successful result considers a small LMFP prototype cell including a scaled electrode production process that confirms scalability and industrial feasibility and fulfills the defined project targets

Philip Kargl, PHOENICS project leader

Why LMFP is being developed for stationary storage

LMFP is presented in the project as an evolution of lithium iron phosphate (LFP) chemistry that preserves LFP’s safety and robustness while avoiding cobalt and nickel. The material adds manganese into the cathode mix, and PHOENICS aims to realise up to a 20% increase in specific energy density compared with established LFP cells, which would allow more energy to be stored in the same volume.

For stationary applications — grid balancing, renewables firming and site-level backup — higher energy density can reduce system footprint and lower balance‑of‑system costs. PHOENICS also targets a 40% improvement in service life, which the partners say could improve the economics of stationary storage by spreading capital costs over more cycles and years.

The technical programme: characterization, modelling and safety validation

The consortium will analyse the new LMFP cathode material across its lifecycle using material characterization methods and high-resolution imaging, combined with AI-supported evaluation techniques. The partners plan to map cell behaviour with both physics-based and data-driven models to connect material traits to electrochemical performance and degradation pathways.

A separate workstream focuses on safety properties for LMFP-based cells; the material description in the project highlights safety validation as a core deliverable. Philip Kargl described the intended outcome as a small prototype cell plus a scaled electrode production process that confirms industrial feasibility and meets the project targets.

Manufacturing and scale-up challenges PHOENICS will tackle

PHOENICS sets out to move LMFP from laboratory materials to an industrially manufacturable cell. The partners identify consistent material quality at scale — morphology and particle size distribution — as a primary technical hurdle. Maintaining the same particle characteristics when production volumes rise is critical to repeatable electrochemical performance.

The project emphasises the electrode manufacturing chain: mixing, coating, drying and calendering. PHOENICS says the electrode manufacturing process must be optimised and robustly controlled to achieve homogeneous electrodes while maintaining electrochemical performance and reproducibility, and that validating those process windows is central to proving scalability.

Consortium, funding and milestones

The PHOENICS consortium includes Virtual Vehicle Research, Materials Center Leoben Forschung, Varta Innovation and AVL List. The project has €2.9 million in funding and runs for 36 months, with an explicit goal of reaching TRL4 — technology basic validation in a laboratory environment — by the project end.

Partners will combine lab-scale material development with a scaled electrode production process and a small prototype cell to demonstrate the path from materials to manufacturable cells. The programme bundles lifecycle analysis, imaging and AI-supported evaluation with safety testing and model development to deliver evidence for industrial feasibility.

How PHOENICS could succeed — and where it may stall

The bottom line

PHOENICS packages material development, manufacturing pilots and safety assessment into a single 36-month programme that aims to show LMFP can move from lab chemistry to manufacturable cells. The consortium’s €2.9 million budget and the TRL4 target set a modest, laboratory-focused scope: success would be a prototype cell and a validated electrode production process that together demonstrate an industrially feasible route to LMFP. The project’s deliverables — material characterisation, modelling and safety validation — will determine whether LMFP’s claimed 20% energy and 40% life gains survive the step to scale.

What to watch

• Watch for publication of the PHOENICS prototype cell validation and the TRL4 demonstration; no date has been set.
• Watch for the consortium’s lifecycle and safety analysis reports for LMFP-based cells; no date has been set.
• Watch for technical papers or presentations detailing the scaled electrode production process and process windows; no date has been set.