China's CATL Starts Solid-State Battery Mass Production: 1,200km Range EVs Arrive Next Year
CATL announces its solid-state battery production line is officially operational, achieving 500Wh/kg energy density for EVs with 1,200km range and 10-minute 0-80% charging — signaling the end of the liquid lithium battery era.
Overview
CATL today announced its solid-state battery mass production line is officially operational at its Fujian headquarters, making China the first country in the world to achieve mass production of automotive-grade solid-state batteries.
The solid-state battery delivers 500Wh/kg energy density — double the current mainstream liquid lithium batteries (~250Wh/kg) — enabling electric vehicles exceeding 1,200km of range on a single charge.
Performance Comparison
| Parameter | Traditional Liquid Li-ion | Solid-State Battery |
|---|---|---|
| Energy density | 250Wh/kg | 500Wh/kg |
| Range | 500–600km | 1,200km+ |
| Charging (0–80%) | 30 minutes | 10 minutes |
| Safety | Thermal runaway risk | Near-zero thermal runaway |
| Cycle life | 1,500 cycles | 4,000+ cycles |
Production Challenges
The core challenge of solid-state battery mass production lies in the solid electrolyte-electrode interface contact. CATL solved this with its proprietary "inorganic-polymer composite electrolyte" approach, completing validation with >90% capacity retention after 1,000 cycles.
Launch Timeline
The first production vehicle equipped with solid-state batteries is the NIO ET10, expected to begin delivery in Q1 2028 at approximately ¥400,000 yuan. Multiple automakers have signed supply agreements with CATL — the solid-state battery era is officially here.
Disclaimer
Content is AI-generated. Do not use it as a basis for real decisions. Do not cite it as factual reporting.