CATL Strengthens China EV Battery Market Leadership as BYD and LG Energy Solution Lose Share

CATL further strengthened its dominance in the China electric vehicle battery market during April 2026, while rivals BYD and LG Energy Solution experienced declining market positions. According to fresh data released by the China Automotive Battery Innovation Alliance (CABIA), CATL secured 29.06 GWh of power battery installations during the month, allowing the company to command a 46.64% market share. This marked an improvement from its 45.54% share recorded in March, highlighting the company’s continued momentum in the rapidly expanding EV battery industry.

BYD retained second place in the overall market rankings with battery installations totaling 10.49 GWh in April. The company captured 16.83% of the market, though its share slipped from 17.83% in March. Despite remaining one of the strongest battery suppliers in China, the year’s competitive environment has created pressure on BYD’s market position as rival manufacturers continue expanding production capabilities and securing new supply agreements across multiple vehicle segments.

China EV Battery Installation Performance in April 2026

Gotion High-tech emerged as one of the stronger performers in April, outperforming broader market growth trends. The company climbed to third place in China’s battery installation rankings with 4.05 GWh and secured a 6.50% market share. This represented a sequential increase of 0.53 percentage points from March. The improvement reflected growing adoption of the company’s battery solutions across domestic EV manufacturers as demand for affordable and scalable battery technologies continued rising throughout the market.

Ternary Battery Segment Shows Major Shift

The ternary battery category witnessed a major reshuffling in April as CATL maintained overwhelming dominance. The company recorded 9.53 GWh of ternary battery installations, accounting for 82.52% of the country’s total ternary battery market. In contrast, LG Energy Solution suffered a steep decline in the segment. The South Korean battery manufacturer’s market share dropped sharply to 3.02% from 17.86% in March, while installations fell to only 0.35 GWh during the month.

Svolt Energy delivered a notable performance in the ternary battery sector by securing second place in April. The company achieved installations of 0.91 GWh and captured a 7.87% share of the segment. The gains indicated increasing competitiveness among domestic Chinese battery suppliers as automakers continue diversifying sourcing strategies for high-energy-density battery technologies.

LFP Battery Market Remains Highly Competitive

The lithium iron phosphate (LFP) battery segment continued to be dominated by CATL and BYD, though both companies experienced slight declines in market share sequentially. CATL recorded 19.53 GWh of LFP battery installations in April, representing 38.48% of the segment. BYD followed closely with 10.49 GWh and a 20.66% market share. Even with reduced shares compared with March, both companies maintained a considerable lead over competitors in the LFP category.

Gotion High-tech also strengthened its presence within the LFP battery market. The company secured third position in the segment with installations totaling 4.03 GWh and captured a 7.95% market share. The performance reflected continued demand growth for LFP chemistry batteries, which are increasingly favored in China for their cost efficiency, safety advantages, and suitability for mass-market electric vehicles.

Cumulative 2026 Market Trends

Looking at the cumulative performance for the first four months of 2026, CATL continued to expand its long-term market advantage. The company achieved a cumulative market share of 47.36%, representing a substantial increase of 4.46 percentage points compared with the same period last year. The sustained growth highlights CATL’s strengthening position as China’s dominant EV battery supplier amid rising electrification demand.

BYD, however, faced more challenging conditions during the same period. Its cumulative market share for January through April stood at 16.81%, reflecting a year-on-year decline of 7.73 percentage points. The decline suggested intensifying competition in China’s battery industry as additional domestic manufacturers increase capacity and compete more aggressively for contracts with automakers.

China’s overall power battery market rebounded strongly in April following slower activity earlier in the year caused by seasonal factors. Total power battery installations across the country reached 62.4 GWh during the month, representing growth of 15.2% year-on-year and 10.4% compared with March. The recovery highlighted improving momentum across the EV sector as vehicle production and battery demand accelerated entering the second quarter of 2026.

Frequently Asked Questions

Why did CATL increase its EV battery market share in China?
CATL expanded its market share because of strong battery installation growth across both ternary and LFP battery segments in April 2026. The company benefited from broad customer demand, large-scale production capability, and continued leadership in China’s EV supply chain. CATL’s 29.06 GWh of battery installations allowed it to capture 46.64% of the market, strengthening its position over competitors such as BYD and LG Energy Solution. Its dominance in the ternary battery category also contributed significantly to overall growth during the month.

What caused LG Energy Solution’s market share decline in April 2026?
LG Energy Solution experienced a significant drop in China’s ternary battery market share due to reduced installations during April 2026. The company recorded only 0.35 GWh of ternary battery installations, causing its market share to decline from 17.86% in March to 3.02% in April. Intensifying competition from Chinese battery manufacturers, particularly CATL and Svolt Energy, contributed to the weaker performance. Domestic suppliers continue strengthening their positions through increased production capacity and closer partnerships with Chinese EV manufacturers.