who makes electric car batteries

[MacSawyer]

The electric vehicle (EV) battery market is dominated by a handful of major players, primarily from Asia. The leading manufacturers are Contemporary Amperex Technology Co. Limited (CATL) from China and LG Energy Solution from South Korea. They are followed closely by BYD (China), Panasonic (Japan), and SK On (South Korea). These companies supply battery cells and packs to nearly every major automaker, including Tesla, Ford, General Motors, Volkswagen, and Hyundai.

The industry is characterized by fierce competition and rapid innovation, focusing on increasing energy density (more range per pound), reducing costs, and developing new chemistries like Lithium Iron Phosphate (LFP), which is known for its stability and lower cost. While China currently leads in production capacity, North American and European companies are rapidly building gigafactories to localize supply chains, spurred by government policies like the U.S. Inflation Reduction Act.

Here is a comparison of the top five global EV battery manufacturers by market share and key partners (data based on recent industry reports):

Manufacturer	Country of Origin	Approx. Global Market Share (2023)	Notable Automotive Partners
CATL	China	~37%	Tesla, BMW, Ford, Mercedes-Benz, Volkswagen
LG Energy Solution	South Korea	~14%	General Motors, Ford, Tesla, Hyundai, Stellantis
BYD	China	~16%	BYD Auto, Tesla, Ford, Toyota, Kia
Panasonic	Japan	~6%	Tesla (primarily), Toyota, Honda
SK On	South Korea	~5%	Ford, Hyundai, Volkswagen

It's also important to distinguish between the cell manufacturer and the automaker's final battery pack. Companies like Tesla produce their own battery packs (like the 4680 cell) at their Gigafactories, but they still rely heavily on cells from Panasonic, CATL, and LG Energy Solution. Similarly, General Motors has a joint venture with LG called Ultium Cells LLC to produce batteries for its vehicles. The future will see more automakers forming similar partnerships to secure supply and control core technology.

[RicardoDella]

From my research, it's a mix. Big names like Panasonic have been with Tesla for years. Then you've got LG and SK Innovation fighting for contracts with GM and Ford. But the real story is China's CATL—they're massive, supplying everyone. Most car companies don't make their own cells; they buy them and assemble the packs. It's all about who can deliver the most range for the lowest cost right now.

[VanNoah]

When I think about who really makes the batteries, it's not just the brand on the pack. It's the companies mining and refining the lithium, cobalt, and nickel. The chemical giants designing the cathode and anode materials are just as critical. The assembly is the final step. So, while CATL and LG are the big names, a whole global supply chain of material scientists and chemical engineers makes modern EV batteries possible. It's a deeply complex ecosystem.

[VanJosiah]

Honestly, I just care that it works and is safe. I know my Ford F-150 Lightning uses batteries from SK On because it was a big deal in the news. But for my next EV, I'll be looking at the warranty and the battery's chemistry—some are supposed to last longer. The manufacturer's name matters less to me than the car company standing behind it for eight years or 100,000 miles. That's the real guarantee.

[ValeriaLee]

Look at it like the engine in a traditional car. Some automakers build their own, but many outsource. Tesla is trying to vertically integrate with its 4680 cells. Most others, like Volkswagen and Hyundai, partner with specialists like CATL or LG. The key trend is localization—new gigafactories are popping up in the U.S. to meet demand and comply with new regulations, shifting the supply chain away from total reliance on Asia. It's a dynamic, global chess game.