CATL

Type: Company (Battery Manufacturing — World's Largest)

CATL (Contemporary Amperex Technology Co. Limited) is the world's largest battery manufacturer with 37%+ global market share. The company is advancing sulfide-based solid-state batteries, choosing the electrolyte pathway that offers the best combination of ionic conductivity and energy density.

Solid-State Battery Program

• Chemistry: Sulfide-based solid electrolyte
• Energy density: 450-500 Wh/kg (nearly 2x current best Li-ion at ~250-300 Wh/kg)
• Pilot production: 2026 — small-scale manufacturing to validate processes
• Vehicle integration: 2027 — first vehicles with CATL solid-state cells
• Current cost: 3-5x more expensive than conventional lithium-ion
• Cost parity timeline: Likely 2028-2030 for competitive pricing

Supply Chain Commitment

• Copper foil reservation: 8.4 billion euros — massive supply chain commitment indicating confidence in eventual scale
• Manufacturing leverage: CATL's existing production infrastructure could accelerate cost reduction
• Sulfide vs. alternatives: Chosen over oxide (Toyota) and polymer (Solid Power) approaches

Key Contributions

• Sulfide SSB achieving 450-500 Wh/kg energy density (CATL Solid-State Progress)
• Pilot production planned for 2026 (CATL Solid-State Progress)
• 8.4B euro copper foil reservation signals commercial production commitment (CATL Solid-State Progress)

Sodium-Ion Position

CATL is identified by MIT Technology Review (2026 Breakthrough Technology report) alongside BYD as a leading sodium-ion manufacturer driving commercialization. Global Na-ion shipments reached 9 GWh in 2025-2026 with 150% YoY growth — CATL and BYD are the primary contributors to this volume (MIT Tech Review).

Mentioned In

• Solid-State Batteries — Key player in sulfide pathway
• Grid Energy Storage — Potential large-scale supplier
• Sodium-Ion Batteries — Leading manufacturer alongside BYD

Related Entities

• BYD — Competitor in Chinese battery market
• Toyota — Japanese competitor, oxide/lithium-sulphide pathway
• Samsung SDI — Korean competitor, S-Line pilot