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CATL Choco 26# Battery Enables 99s Swaps
💡100k-station EV infra scales robotaxi ops, key for AI mobility builders (CATL plan by 2028)
⚡ 30-Second TL;DR
What Changed
75kWh initial capacity on 800V platform for broad car compatibility
Why It Matters
Accelerates EV mass adoption by solving charging bottlenecks, vital for scaling autonomous vehicle fleets and robotaxi services.
What To Do Next
Benchmark CATL's 99s swap times against robotaxi refueling needs in your fleet simulation models.
Who should care:Enterprise & Security Teams
Key Points
- •75kWh initial capacity on 800V platform for broad car compatibility
- •99-second battery swapping via super-swap integrated stations
- •Partners with 11 automakers across 25 models for A0-C class coverage
- •4000 stations in 190 cities and major highways already operational
- •Expansion to over 100,000 shared stations by end of 2028
🧠 Deep Insight
AI-generated analysis for this event.
🔑 Enhanced Key Takeaways
- •The Choco 26# utilizes CATL's proprietary 'Cell-to-Chassis' (CTC) integration technology, which eliminates the traditional battery pack housing to increase volumetric energy density by approximately 20% compared to previous generation swappable modules.
- •The 800V architecture enables a peak charging power of 4C, allowing the battery to recover 80% state-of-charge in under 10 minutes when not utilizing the 99-second swap service.
- •CATL has implemented a blockchain-based battery asset management system to track the health, cycle count, and ownership history of each Choco 26# unit across the shared network, facilitating transparent battery-as-a-service (BaaS) billing.
📊 Competitor Analysis▸ Show
| Feature | CATL Choco 26# | NIO Power Swap | Geely E-Energee |
|---|---|---|---|
| Architecture | 800V | 400V/800V (Gen 4) | 400V |
| Swap Time | 99s | ~180s | ~60s-120s |
| Compatibility | Multi-brand (11 OEMs) | Proprietary (NIO/Sub-brands) | Primarily Geely Group |
| Station Type | Integrated Super-swap/Charge | Dedicated Swap | Dedicated Swap |
🛠️ Technical Deep Dive
- Cell Chemistry: Utilizes high-nickel NCM (Nickel Cobalt Manganese) cathode material optimized for high-frequency thermal cycling during rapid swaps.
- Thermal Management: Features a liquid-cooled bottom-plate design that interfaces directly with the vehicle's thermal management system upon docking, ensuring rapid stabilization after high-power charging.
- Connector Interface: Employs a high-current, vibration-resistant blind-mate connector system rated for over 10,000 mating cycles.
- Communication Protocol: Uses a CAN-FD bus interface for real-time BMS (Battery Management System) synchronization with the vehicle's central gateway during the swap process.
🔮 Future ImplicationsAI analysis grounded in cited sources
CATL will achieve a dominant market share in the Chinese battery-as-a-service (BaaS) sector by 2027.
The open-platform approach partnering with 11 automakers creates a network effect that proprietary swap networks like NIO cannot match in scale.
The 800V standardization will force a shift in mid-range EV pricing.
By enabling 800V capabilities in B/C-class cars via a swappable module, CATL lowers the barrier for OEMs to adopt high-voltage architectures without individual R&D investment.
⏳ Timeline
2022-01
CATL officially launches the EVOGO battery swapping brand and the 'Choco-SEB' (Swappable Electric Block) concept.
2022-04
First EVOGO battery swap stations begin commercial operation in Xiamen, China.
2024-09
CATL announces the development of the next-generation high-voltage swappable battery platform.
2026-04
Official launch of the Choco 26# battery and expansion of the integrated super-swap network.
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Original source: IT之家 ↗