An NCM battery is a type of lithium-ion battery that uses nickel, cobalt, and manganese in its cathode, the component that largely determines a battery’s performance. It’s one of the most common battery chemistries in electric vehicles today, prized for packing more energy into less weight than most alternatives. You’ll also see it written as “NMC,” which is the same thing with the letters rearranged.
How the Chemistry Works
Every lithium-ion battery has the same basic architecture: a cathode (positive side), an anode (negative side, usually graphite), and a liquid electrolyte that lets lithium ions shuttle between them during charging and discharging. What makes NCM distinct is its cathode formula, written as LiNixMnyCozO2, where x, y, and z represent the ratio of nickel, manganese, and cobalt.
Each metal plays a specific role. Nickel is the energy workhorse: the more nickel in the mix, the more energy the battery stores per kilogram. Manganese improves structural stability, helping the cathode hold together over many charge cycles. Cobalt boosts the overall performance and helps maintain the cathode’s layered crystal structure, but it’s expensive and raises ethical sourcing concerns, so manufacturers try to minimize it.
The ratios aren’t fixed. Early NCM cells split the three metals equally (sometimes called NCM 111), but the industry has steadily pushed toward nickel-rich formulations. An NCM 811 cathode, for example, uses 80% nickel, 10% cobalt, and 5% manganese. Some formulations go even higher, reaching 85% nickel with just 10% cobalt and 5% manganese. Higher nickel content means more range per charge, which is why automakers keep pushing in that direction, but it also makes thermal management more challenging.
Energy Density and Performance
The main selling point of NCM batteries is energy density, meaning how much energy they store relative to their weight. NCM cells typically deliver 150 to 250 watt-hours per kilogram, and advanced cells can exceed 300 Wh/kg. In practical terms, this means a lighter, more compact battery pack that gives an EV more driving range without adding bulk.
That advantage comes with a tradeoff in lifespan. NCM batteries generally last around 1,000 to 1,500 full charge-discharge cycles before their capacity drops to about 80% of the original. For a typical EV driver covering 250 to 300 miles per full charge, that translates to roughly 250,000 to 450,000 miles of driving before meaningful degradation, which is more than enough for most owners. Still, it’s a shorter cycle life than some competing chemistries.
NCM vs. LFP Batteries
The biggest competitor to NCM in the EV world is LFP (lithium iron phosphate). The two chemistries represent a fundamental tradeoff between energy and cost.
- Energy density: NCM reaches up to 300 Wh/kg. LFP tops out around 160 to 205 Wh/kg. This is why NCM dominates in long-range, performance-oriented EVs where every kilogram matters.
- Cycle life: LFP batteries last 2,000 cycles or more, roughly double that of NCM. For applications with heavy daily use, like city buses or home energy storage systems, LFP’s longevity is a significant advantage.
- Cost: NCM packs run about $100 to $130 per kilowatt-hour. LFP packs cost $70 to $100 per kWh and are dropping fast. Argonne National Laboratory estimated NCM pack costs to automakers at around $110 per kWh in 2024.
- Safety: LFP has a very low risk of thermal runaway, the chain reaction where a battery overheats uncontrollably. NCM requires more sophisticated cooling and battery management systems.
Neither chemistry is universally better. NCM makes sense when you need maximum range in a compact package. LFP makes sense when safety margins, cost, and longevity matter more than squeezing out extra miles.
Which Cars Use NCM Batteries
NCM is the dominant battery chemistry for passenger EVs globally. In the first two months of 2025, vehicles equipped with NCM packs accounted for 45% of total battery metals consumption worldwide, according to Adamas Intelligence. The Volkswagen Group leads all automakers in NCM battery metal deployment, followed by Geely (which owns Volvo, Polestar, and Zeekr) and Tesla.
Other major users include Hyundai Motor Group, Mercedes-Benz, Stellantis, BMW, and Ford. Chinese automaker Chery saw a sevenfold jump in NCM deployment in early 2025, largely driven by its Luxeed brand. Even some conventional hybrids, which traditionally relied on nickel metal hydride batteries, are increasingly adopting NCM packs. Li Auto, which specializes in extended-range EVs, and newcomer Xiaomi also use NCM chemistry in their vehicles.
Thermal Runaway and Safety
The higher energy density of NCM comes with a real safety consideration: thermal runaway. This is the point where a battery cell generates heat faster than it can dissipate it, triggering a self-reinforcing chain reaction that can reach extreme temperatures. In NCM cells, the critical temperature where this runaway begins ranges from about 173°C to 281°C (343°F to 538°F), depending on how uniformly the cell is heated and its state of charge. Once runaway is underway, cell casing temperatures can spike to nearly 600°C.
Modern EVs manage this risk with liquid cooling systems, temperature sensors throughout the pack, and battery management software that monitors every cell individually. These systems are effective. Thermal runaway events in production vehicles are rare. But the inherent chemistry is less forgiving than LFP, which is one reason budget-oriented EVs and stationary energy storage systems often favor LFP instead.
Cobalt and Ethical Sourcing
Cobalt is the most controversial ingredient in NCM batteries. The Democratic Republic of the Congo produced 69% of the world’s mined cobalt in 2020, ten times more than Russia, the next largest producer. Cobalt mining in the DRC has been linked to water pollution, acid mine drainage, agricultural contamination, and serious human health impacts. Artisanal mining operations, in particular, raise concerns about worker safety, child labor, and displacement of local communities.
This is a major reason the battery industry is moving toward nickel-rich, cobalt-reduced formulations like NCM 811 and beyond. Some manufacturers are also investing in cobalt sourced from more regulated mines or exploring recycling programs that recover cobalt from spent battery packs. As ore grades decline globally below about 0.3% cobalt by weight, the environmental cost of extraction is expected to rise further, adding urgency to these efforts.
Where NCM Is Headed
The trend in NCM development is clear: more nickel, less cobalt, and higher energy density. Researchers are working on cathodes that push nickel content above 90%, which could bring energy density closer to 350 or even 400 Wh/kg at the cell level. The challenge is that ultra-high-nickel cathodes degrade faster and are more prone to structural cracking during cycling, so each step up in nickel requires new coatings, electrolyte formulations, or manufacturing techniques to maintain durability.
NCM also faces growing competition from LFP, which has been closing the energy density gap while maintaining its cost and safety advantages. For now, NCM remains the chemistry of choice for premium and long-range EVs, while LFP dominates in standard-range models and energy storage. Both chemistries will likely coexist for years, each serving different segments of the market.