At the 2023 Guangzhou Auto Show, Chang’an Motors launched its self-developed battery brand “Golden Bell Cover“, marking a strategic breakthrough in the new energy power battery sector. This all-solid-state battery, with an energy density of 400Wh/kg and a range exceeding 1,500 km, alongside its “non-flammable, non-explosive” safety features, has become an industry focal point. In June 2025, Chang’an announced the battery’s debut by year-end, advancing the timeline by 2–3 years and showcasing rapid R&D progress.

Core Technological Highlights

• Unparalleled Safety
  • Solid-state electrolytes replace liquid electrolytes, eliminating thermal runaway risks and improving safety by 70% vs. traditional lithium batteries.
  • Passed stringent China Automotive Engineering Research Institute tests,all achieving “zero fire or explosion“:
    • double-duration immersion (IPX8)
    • 85°C high-pressure water spray
    • 140-second direct fire, and nail penetration
  • Military-grade thermal insulation materials enhance heat resistance by 30% (up to 200°C), paired with AI remote diagnostics for real-time monitoring.
• Extended Range & Ultra-Fast Charging
  • Energy density of 400Wh/kg (2× traditional batteries) enables 1,500+ km range—equivalent to two tanks of fuel (e.g., Beijing to Shanghai without charging).
  • Supports 4C super-fast charging (20%→80% in 10 minutes), with future 7C technology targeting “400 km range after 7-minute charge“.
• Longevity & Reliability
  • Cell cycle life exceeds 2,000 cycles, supporting 10-year/300,000-km vehicle use.
  • Over 6,800 quality control points and full-lifecycle data tracking ensure defect rates at PPB (parts per billion) level.

Mass Production Plan & Strategy

Timeline: Functional prototype debut (2025) → On-vehicle verification (2026) → Mass production (2027).

Capacity Goal: 8 self-developed cell types (liquid/semi-solid/solid) by 2030, with 150GWh capacity.

Technology Roadmap:

CTV integration (efficiency ≥86%) in 2024.

Semi-solid/solid-state commercialization (350–500Wh/kg) by 2030.

Lithium-sulfur/metal batteries (1,300–1,500Wh/kg) by 2035.

Partnerships: Joint ventures with CATL and Ganfeng Lithium accelerate industrialization; first cells already produced.

Industry Impact & Challenges

Market Transformation: 1,500-km range and minute-level charging eliminate “range anxiety,” boosting EV adoption.

Global Competition: Intensified R&D rivalry among Chinese, Japanese, and Korean firms; global market projected to exceed 200GWh by 2030.

Remaining Hurdles: Cost control and raw material supply chains require further optimization despite breakthroughs.

Conclusion

Changan’s breakthrough in all-solid-state battery technology marks a major leap toward safer, more efficient, and longer-range EVs. As Chinese automakers continue to lead battery innovation, this advancement is likely to reshape the global electric vehicle landscape in the coming years.

🔋 Interested in future-ready EV technologies and export models?
Reach out to us to learn how Changan’s solid-state innovation could benefit your business.