CATL, short for Contemporary Amperex Technology Co. Limited, is the world’s largest manufacturer of electric vehicle batteries. Headquartered in Ningde, China, the company commands roughly 39% of the global EV battery market, making it the only battery supplier with a market share above even 20%. If you drive an electric vehicle today, there’s a reasonable chance the battery pack underneath you was made by CATL or uses its technology.
What CATL Actually Makes
CATL designs and manufactures lithium-ion battery cells and packs primarily for electric vehicles, though its products also power energy storage systems for the electric grid and commercial buildings. The company works with most major automakers globally, supplying battery cells that go into finished vehicles under other brand names. You won’t see a CATL logo on a car, but the company sits at the center of the EV supply chain.
Its two main battery chemistries are NMC (nickel manganese cobalt) and LFP (lithium iron phosphate). NMC batteries pack more energy into less space, which translates to longer driving range. LFP batteries cost less and last longer through more charge cycles, but they’re heavier for the same amount of stored energy. CATL produces both, giving automakers flexibility depending on whether they’re building a budget EV or a long-range premium model.
Key Battery Technologies
CATL’s flagship product line is the Qilin battery, which uses the company’s cell-to-pack (CTP) design. Traditional battery packs bundle individual cells into modules, then stack modules into a pack. CTP skips the module step entirely, fitting more cells directly into the pack structure. The result is higher energy density: 265 Wh/kg for the NMC version and 205 Wh/kg for LFP. In practical terms, that means more range from a battery pack that takes up the same physical space.
The company also produces the Shenxing battery, which focuses on charging speed rather than maximum range. Its headline spec is charging to 80% capacity in five minutes, roughly the time it takes to fill a gas tank. That speed requires solving a serious heat problem. When you push hundreds of amps into a battery cell that quickly, temperatures spike. CATL uses a multi-tab internal design that distributes electrical current more evenly across each cell, keeping temperatures manageable during high-speed charging sessions.
At the higher end of its research pipeline, CATL has demonstrated battery cells reaching 330 Wh/kg energy density, and its high-nickel 811 cathode chemistry (80% nickel, 10% cobalt, 10% manganese) pushes energy density further while maintaining safety standards.
How CATL Reached the Top
CATL was founded in 2011 and grew rapidly alongside China’s aggressive push to electrify its vehicle fleet. Government subsidies, mandates for EV adoption, and a massive domestic market gave Chinese battery makers a head start in scaling production. CATL capitalized on that environment better than any competitor, building enormous manufacturing campuses (called “gigafactories”) and locking in long-term supply agreements with automakers worldwide.
The company’s dominance is not just about volume. It invests heavily in R&D across battery chemistry, manufacturing processes, and pack engineering. That combination of scale and technical depth is what keeps automakers coming back: CATL can offer competitive pricing because of its production volume, and it can offer cutting-edge performance because of its research pipeline.
CATL’s Presence in the United States
CATL doesn’t currently operate its own battery factory on U.S. soil, but its technology is entering the American market through licensing deals. Ford announced plans in 2023 to build a battery plant in Michigan using CATL’s LFP technology under a licensing arrangement. Rather than CATL owning the factory, Ford would own and operate it while paying CATL for the rights to use its manufacturing processes and cell designs.
This structure matters because of the Inflation Reduction Act, which restricts EV tax credit eligibility for vehicles using battery components from “foreign entities of concern,” a category that includes companies with significant Chinese government ties. By licensing the technology rather than having CATL directly manufacture the cells, Ford has argued the batteries meet tax credit eligibility requirements. That claim has drawn scrutiny from U.S. lawmakers concerned about the flow of sensitive battery technology and the degree of CATL’s involvement.
The Michigan facility’s scope has also expanded beyond EV batteries. Ford has announced plans to produce grid-scale energy storage systems and data center batteries at the site using CATL technology, which has prompted additional questions from Congress about whether the original licensing terms were altered to accommodate those new product lines.
Next-Generation Battery Development
CATL’s most ambitious project is solid-state battery technology. Conventional lithium-ion batteries use a liquid electrolyte to move ions between the cathode and anode. Solid-state batteries replace that liquid with a solid material, which can dramatically increase energy density and improve safety by eliminating the flammable liquid component.
The company has begun pilot production of solid-state cells with an energy density of 500 Wh/kg, nearly double what its current Qilin NMC cells achieve. CATL is working toward small-scale production by 2027, with mass production expected closer to the end of the decade. The company’s chief scientist, Wu Kai, has said the near-term focus is scaling 60 Ah cells for automotive use.
If CATL delivers on those targets, 500 Wh/kg cells could push EV ranges well past 600 miles on a single charge, or allow automakers to use smaller, lighter battery packs to hit existing range targets at lower cost. That would represent a generational leap in EV capability.
CATL’s Major Competitors
The global EV battery market is heavily concentrated among a handful of players, most of them Asian. BYD, also based in China, is CATL’s closest competitor and has been gaining share rapidly, in part because BYD builds its own electric vehicles and uses its batteries internally. South Korean companies LG Energy Solution, Samsung SDI, and SK On round out the top tier, supplying automakers like General Motors, BMW, and Hyundai. Japan’s Panasonic, a long-time Tesla supplier, remains a significant player as well.
What sets CATL apart from this group is the gap in market share. At nearly 40% of global EV battery installations, CATL supplies roughly as much as its next two or three competitors combined. That scale advantage feeds a virtuous cycle: higher volume drives down per-unit costs, which wins more contracts, which drives volume higher.
Why CATL Matters Beyond EVs
Battery technology is becoming critical infrastructure far beyond passenger cars. Grid-scale energy storage, which helps utilities manage the intermittent output of wind and solar farms, is a fast-growing market. Data centers powering AI workloads need massive backup power systems. Commercial trucks, buses, construction equipment, and marine vessels are all shifting toward electrification. CATL is positioned in all of these markets, and its LFP technology is particularly well-suited for stationary storage applications where weight matters less than cost and longevity.
For anyone following the energy transition, electric vehicles, or the geopolitics of technology supply chains, CATL is one of the most consequential companies in the world. Its decisions about where to build factories, who to license technology to, and which chemistries to prioritize ripple through the auto industry, energy markets, and international trade policy.