- CATL retained leadership but lost market share momentum in March.
- BYD gained significant share driven by strong EV sales recovery.
Momentum shifted across the China EV battery market in March 2026 as leading players adjusted to demand recovery following a seasonal slowdown. The market showed strong month-on-month growth, signaling stabilization across the industry after early-year disruptions. While dominance at the top remained intact, competitive dynamics intensified, particularly in lithium iron phosphate and ternary battery segments. The rebound in electric vehicle sales played a critical role in reshaping battery installation shares and reinforcing growth trajectories for key manufacturers operating in China.
CATL Maintains Leadership Despite Market Share Dip
CATL continued to lead the China EV battery market with total installations reaching 25.71 GWh in March. This translated to a 45.54% market share, keeping the company firmly in first position. However, the figure reflects a decline of 3.56 percentage points compared to February, indicating increasing competition and redistribution of demand across other suppliers. Despite the dip, CATL’s scale advantage and diversified battery portfolio continue to secure its dominance in the domestic EV battery landscape.
BYD Strengthens Position with Sales-Driven Growth
BYD demonstrated notable growth, recording battery installations of 10.06 GWh and capturing a 17.83% market share. This represents a sharp increase of 4.26 percentage points compared to the previous month. The surge was largely driven by a rebound in electric vehicle sales, allowing BYD to expand its footprint in both overall and LFP battery segments. The company’s vertically integrated business model continues to provide a strategic advantage in scaling battery deployment alongside vehicle production.
Other Key Players and Market Positioning
CALB secured third place with installations of 3.52 GWh and a 6.23% market share, reflecting modest growth. Meanwhile, in the ternary battery segment, CATL further strengthened its leadership with a dominant 70.83% share. LG Energy Solution ranked second in this segment with 17.86%, though it experienced a sharp decline in share. Svolt Energy showed improvement, capturing a higher share due to increased installations and competitive positioning in niche segments.
Segment-Wise Performance Across Battery Chemistries
The competitive landscape differed significantly across battery chemistries. CATL remained the leader in both ternary and LFP segments, but faced declining share in LFP batteries. BYD, on the other hand, strengthened its presence in the LFP segment, benefiting from its strong EV sales recovery. Gotion High-tech also showed incremental gains, indicating a gradual diversification of the supplier base in the LFP market.
The following table highlights battery installation performance and market share across key players in March 2026:
| Company | Installations (GWh) | Market Share (%) |
|---|---|---|
| CATL | 25.71 | 45.54 |
| BYD | 10.06 | 17.83 |
| CALB | 3.52 | 6.23 |
Overall Market Recovery and Growth Trend
China’s total power battery installations reached 56.5 GWh in March, reflecting a marginal year-on-year decline of 0.1% but a substantial month-on-month increase of 114.9%. This sharp rise indicates recovery from the February slowdown linked to seasonal factors. The data suggests that the China EV battery market is entering a stable growth phase, supported by consistent EV demand and expanding production capacity across leading manufacturers.
Frequently Asked Questions
Who leads the China EV battery market in March 2026?
CATL remains the leader in the China EV battery market in March 2026 with a 45.54% market share and 25.71 GWh of installations. Despite a slight drop in share compared to February, the company continues to dominate due to its scale, diversified battery portfolio, and strong presence across both ternary and LFP battery segments, maintaining a significant gap over competitors.
Why did BYD gain market share in March 2026?
BYD gained market share primarily due to a strong rebound in electric vehicle sales, which directly increased its battery demand and installations. The company’s vertically integrated approach allows it to align vehicle production with battery supply, giving it a competitive edge. This resulted in a notable increase in both overall and LFP battery market share during March.
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