- CATL's current manufacturing still rely on liquid-chemistry battery tech for real-world supply.
- All-solid-state chemistry is reportedly at level four on a nine-point readiness scale.
- Solid-solid interface remains a major obstacle to durable mass-market battery production.
CATL may be pushing hard at the front of the global battery industry, but the latest solid-state signal is more cold shower than victory lap.
According to a CarNewsChina report, the company's all-solid-state battery work remains years away from mass-market deployment. The key point is simple: the technology may be promising, but it is still not close to the scale, reliability and manufacturing confidence needed for ordinary production cars.
The report says CATL's present manufacturing volumes continue to rely on conventional liquid-chemistry configurations. That is no small detail, given the company's scale. Citing China EV DataTracker, the report says CATL's installed capacity reached 33.08GWh in May 2026, up from 29.06GWh in April.
Solid-state batteries are often discussed as the next major leap for electric vehicles, with potential gains in energy density, charging behaviour and safety. But the engineering reality is messier. The report places CATL's all-solid-state chemistry at level four on a nine-point Technology Readiness Level scale, meaning laboratory validation and prototype engineering rather than production readiness.
The main issue is the solid-solid interface layer inside the cell. Engineers are reportedly using warm isostatic pressing at 6000 atmospheres to improve contact between materials, but that process brings its own complications. Different compaction densities can create structural misalignments under high pressure, increasing resistance and accelerating cell degradation.
In other words, the problem is not simply inventing a cell that works once in a lab. The harder challenge is making it survive repeatably, affordably and consistently at automotive scale.
That distinction matters for electric-car buyers and carmakers alike. Solid-state batteries may still shape the next era of EV development, but CATL's reported position suggests the technology should be treated as a longer-term transition rather than an imminent showroom breakthrough.
For now, liquid-chemistry batteries remain the backbone of CATL's real-world output, while solid-state continues its slower climb from prototype promise toward something the mass market can actually use.
