Updated October 17, 2026 FAST puts a funded validation program behind faster formation The Faraday Institution's FAST project has £6 million in funding and runs from October 1, 2025, through September 30, 2028. Led by the University of Birmingham, it targets formation, ageing and testing as linked manufacturing problems. The program initially focuses on high-nickel NMC, with a composition of LiNi0.9Mn0.05Co0.05O2 and above, paired with graphite or graphite-silicon anodes. Its results should not automatically be applied to LFP storage cells or other electrode systems. The project plans to build single-layer and multilayer pouch cells, instrument them to follow physical and chemical changes, and screen electrolytes for wetting, gas generation and interfacial stability. Candidate protocols include pressure, temperature and rest periods as well as pulsed current and field-assisted approaches. These are research routes under evaluation, not a list of processes already proven on commercial production lines. The important checkpoint is full-format validation FAST's stated plan is to benchmark protocols against industrial standards and validate them in full-format cells at the UK Battery Industrialisation Centre. The comparison covers energy input, processing time, capacity and energy losses during formation and cycling, and the resulting cycle life. The project also targets reproducibility. A shorter recipe that works on a few laboratory cells is not enough if variation increases when thousands of channels run across multiple shifts. For buyers, that creates a practical evidence checklist: identify the chemistry and cell format, separate electrochemical formation time from total release time, request the aging and defect-screening criteria, and compare yield and lifetime against the unchanged baseline. Report absolute hours and energy per qualified cell, not only a percentage reduction. A process improvement can otherwise look larger by excluding rest periods, rework or rejected output. Why one day matters at factory scale Consider a hypothetical factory releasing 10 gigawatt-hours of qualified cells per year at a uniform rate over 365 days. One day of output is about 27.4 megawatt-hours. Shortening the finishing queue by one day could therefore reduce work in progress by roughly that amount, provided upstream output, yield and scheduling remain unchanged. This is a throughput illustration, not a measured FAST result or a forecast of cash savings. The distinction between a target and an achieved result is essential. FAST's public page describes deliverables through September 2028; it does not publish a completed universal fast-formation recipe or a guaranteed percentage cut in factory cost. Its strongest contribution at this stage is the explicit link between mechanism, diagnostic data and industrial-format verification. Speed earns its value only when the released cells still meet their performance and safety requirements. Primary source checked October 17, 2026: Faraday Institution FAST project, scope, funding and milestones . The original manufacturing explainer follows below; the project figures above describe an active research program, not completed production results. A lithium-ion battery cell is not truly finished when it leaves assembly. After coating, drying, calendaring, stacking or winding, electrolyte filling, and sealing, the cell still needs to be electrically born. That step is called formation , and it is one of the slowest, most expensive, and most quality-sensitive parts of battery manufacturing. Formation and aging turn an assembled cell into a qualified product. The factory charges and discharges the cell under controlled conditions, builds the solid electrolyte interphase on the anode, lets the chemistry stabilize, measures leakage and capacity, sorts the output, and rejects cells that could become warranty or safety problems later. AI-generated image Formation and aging racks inside a modern cell factory. Source: AI-generated image for CurrentCells. Key Numbers 0.1C Typical Slow Formation Rate 20 hrs Single Charge/Discharge Cycle ~6% Pack Cost Linked to Formation Days Common Formation and Aging Time What Formation Does Inside the Cell The first charge is a controlled chemical construction project. As lithium ions move into the graphite or silicon-bearing anode for the first time, electrolyte decomposes at the fresh electrode surface. That decomposition sounds bad, but a small amount is necessary. It forms the solid electrolyte interphase, usually shortened to SEI, a passivation layer that lets lithium ions pass while limiting continued electrolyte breakdown. A good SEI is thin, stable, ionically conductive, and electronically insulating. A poor SEI consumes too much lithium, raises resistance, creates gas, traps active material, and shortens life. The same idea applies at the cathode, where a cathode electrolyte interphase can influence impedance and long-term stability. The formation recipe is how the factory teaches the cell to behave before a customer ever uses it. Formation is deliberately slow because speed changes the chemistry. Many processes use low current rates, often around 0.1C for parts of the first cycle. At that rate, a full charge or discharge can take about 10 hours, and one full charge-discharge cycle can take roughly 20 hours before rest periods, temperature holds, and diagnostic steps are counted. Multiply that by millions of cells and formation becomes a building full of capital equipment. Why Aging Exists Aging is the waiting room that exposes weak cells. After formation, cells rest under controlled temperature and state-of-charge conditions while the factory watches voltage decay, self-discharge, swelling, impedance, and leakage. A cell that looks acceptable immediately after formation can reveal a soft short or contamination problem during aging. That is why the step remains hard to eliminate. The aging period also lets electrolyte wetting and interfacial chemistry settle. Some factories use room-temperature aging, high-temperature aging, or a combination. Higher temperature can accelerate detection of defects, but it also consumes energy and must be tuned to the chemistry. LFP, NMC, high-nickel cathodes, silicon-rich anodes, sodium-ion cells, and solid-state designs do not all want the same protocol. The business pressure is obvious. Every hour a cell spends in aging occupies floor space, trays, electrical channels, inventory systems, fire protection, and working capital. A factory that can shorten aging without missing bad cells gains throughput without adding another coating line. A factory that shortens it carelessly ships failures into vehicles, storage projects, or consumer devices. The Factory Bottleneck Electrode coating lines get attention because they are large, visible, and expensive. Formation deserves the same attention because it can dominate the back end of a gigafactory. The process requires thousands of power channels, precision measurement, thermal management, fixtures, warehouse-like storage, traceability software, and bidirectional power electronics. It also consumes electricity, although modern systems can recover part of the discharge energy. Academic and industry studies have repeatedly identified formation as one of the highest-cost steps after raw materials. One often-cited estimate puts formation at about 6 percent of total pack cost. That number varies by chemistry, format, utilization, energy price, and factory design, but the direction is clear. Formation is not a small finishing operation. It is a major capital and operating cost. The scale problem gets sharper as factories move from gigawatt-hours to tens or hundreds of gigawatt-hours per year. A one-day reduction in formation and aging time can free enormous inventory volume. A small improvement in diagnostic accuracy can prevent warranty losses. A small mistake can seed a recall. That is why formation optimization sits at the