China’s battery market is looking less like a competition and more like a two-horse race with a very long tail. New data from the China Passenger Car Association shows CATL still towering over the field, BYD holding second place, and foreign suppliers such as LG New Energy getting squeezed to the margins.
CATL held a 50.0% share in 2020 and is projected at 47.8% in 2026, after reaching 48.1% in the first quarter and easing to 47.1% in the second. BYD peaked at 26.9% in 2023 and is now around 17% in 2026. Together, CATL and BYD control the bulk of China’s battery market while everyone else fights for scraps.
CATL stays far ahead
CATL’s slight decline is less dramatic than it sounds. A company can lose a couple of points and still look untouchable if the rest of the market is fragmented, and that is exactly what is happening here. Its first-quarter share of 48.1% and second-quarter level of 47.1% still put it in a class of its own.
That kind of dominance usually means pricing power, supply-chain leverage, and a better seat at the table when automakers place orders. It also makes rivals’ lives much harder, because catching a leader that big requires either a technology leap or a long period of patient loss-making. Neither option is particularly fun.
BYD remains the main challenger
BYD is still the only company close enough to matter in the same conversation. Even after slipping from its 2023 peak, a share around 17% keeps it comfortably ahead of the second tier and far from being irrelevant.
- CATL: 50.0% in 2020, 48.1% in the first quarter, 47.1% in the second quarter, 47.8% projected for 2026
- BYD: 26.9% peak in 2023, around 17% in 2026
- Guoxuan High-tech, Zhongchuang Innovation Aviation and EVE Energy: mostly between 5% and 7%
LG New Energy loses ground fast
The sharpest slide belongs to LG New Energy. Its share fell from 6.5% in 2020 to 2.2% in 2026, and the second quarter brought it down to just 0.6%. That is not a normal dip; it is what getting pushed out of the core market looks like.
The broader pattern is familiar. In China’s battery business, scale tends to reward the biggest local suppliers while foreign brands struggle to defend their position unless they have a very specific niche. With second-tier players all clustered below 10%, and most sitting in the 5% to 7% range, there is plenty of competition below the top two but very little threat to their lead.
The second tier is fighting for room
That crowded middle is where the real scramble is happening. Guoxuan High-tech, Zhongchuang Innovation Aviation and EVE Energy are all mentioned in the same narrow band, which suggests a market that is still active but increasingly polarized. The big question is whether any of them can break upward before CATL and BYD make the gap even harder to close.
For now, the answer looks uncomfortable for everyone outside the top two: China’s battery market is not shrinking, but it is concentrating. And unless a new chemistry, a major customer win, or an aggressive overseas push changes the balance, that concentration is likely to keep doing what concentration usually does – make leaders richer and everyone else louder.