Discover CALB’s 60 Ah solid‑state EV battery delivering 450 Wh/kg, 75% lighter than current packs. Learn how this breakthrough could reshape electric cars – read more now!
Chinese lithium‑ion specialist CALB has just showcased its latest breakthrough – a 60 Ah solid‑state battery that weighs less than 490 g, delivering an energy density of over 450 Wh/kg. That translates to a weight reduction of up to 75 % compared with today’s LFP packs of similar capacity.
Why the weight matters
Every kilogram saved in an electric vehicle (EV) directly eases the load on tires, suspension and chassis, boosting efficiency and extending range. With a lighter pack, manufacturers can design slimmer floor‑boxes and improve overall vehicle dynamics.
Technical highlights
- Solid‑state electrolyte (sunfua‑based) with ion conductivity 15 % higher than current semi‑solid oxides.
- High‑nickel anode paired with lithium‑metal or silicon‑composite cathodes.
- Supports 6C+ charging rates – theoretically 10 % to 80 % state‑of‑charge in about 7 minutes.
- Estimated cost around ¥0.85 /Wh (≈ $0.12 /Wh), roughly double the price of liquid‑electrolyte cells.
Production roadmap
CALB plans a two‑phase rollout. The first batch, delivering 450 Wh/kg cells, will power humanoid robots and vertical‑take‑off‑and‑landing (eVTOL) aircraft by Q4 2025. A limited run for premium passenger cars is slated for 2027, pending China’s forthcoming national solid‑state battery standards expected in July.
Industry impact and timeline
While CALB and BYD are targeting high‑end models for 2027, analysts agree that mass‑market adoption of solid‑state packs will likely not accelerate until around 2030, when production costs fall and regulatory frameworks mature.
Challenges ahead
The main barrier remains price: solid‑state cells currently cost more than twice as much as conventional liquid‑electrolyte packs. In addition, manufacturers must redesign battery enclosures, cooling systems and vehicle architecture to fully exploit the “dry” nature of these cells.
About CALB
Founded in 2001 and based in Changzhou, Jiangsu, CALB (China Aviation Lithium Battery) is a partially state‑owned developer of lithium‑ion technology. In 2022 it ranked the world’s 7th largest EV‑battery supplier and 3rd in China, behind CATL and BYD. Its portfolio also includes grid‑scale energy‑storage solutions.
With the new solid‑state breakthrough, CALB aims to redefine the weight‑to‑energy equation for electric mobility, promising not just longer ranges but also lighter, more agile vehicles.