Contemporary Amperex Technology Co., Limited (CATL) anticipates that large-scale commercialization of solid-state batteries will remain out of reach until after 2030, according to chairman Dr. Robin Zeng. In a recent interview with Caijing Magazine, Zeng explained that reaching an annual production threshold equivalent to 1 million vehicles is critical for industrial viability, but current engineering challenges limit initial application to high-end automotive models priced above 250,000 yuan (approximately 36,920 USD).
Today’s manufacturing output continues to rely on established liquid electrolyte technologies. Data from China EV DataTracker indicate that CATL’s installed capacity climbed to 33.08 GWh in May 2026, up from 29.06 GWh in April. Despite ongoing research, solid-state chemistries remain at level 4 on the nine-point Technology Readiness Level scale, confined to laboratory validation and prototype demonstration stages.
A major obstacle is the solid-solid interface layer. Current production methods use warm isostatic pressing at pressures around 6,000 atmospheres to compact differing materials. However, mismatched compaction densities can cause microstructural misalignments, elevating internal resistance and accelerating cell degradation. These factors hinder rapid scaling into mainstream segments.
Meanwhile, market deployment continues to favor liquid-chemistry platforms. In May 2026, lithium iron phosphate accounted for 23.12 GWh of installations and ternary lithium variants for 9.96 GWh, maintaining the growth trends observed in earlier months. To diversify supply chains, some providers are also exploring sodium-ion battery formats designed for longer cycle life.
Automotive suppliers are charting different solid-state roadmaps. While some focus on sulfide electrolytes, state-owned Dongfeng Motor is advancing an oxide-polymer cell for second-half 2026 integration. That design targets an energy density of 350 Wh/kg, a driving range over 1,000 km, and a 30% reduction in pack weight. Low-temperature tests in Mohe at –30 °C showed capacity retention above 74%. In aerospace trials, a 480 Wh/kg lithium-metal solid-state cell powered an unmanned vehicle across the Qiongzhou Strait.
CATL’s strategy balances continued investment in long-term sulfide research—supported by a planned 10 billion yuan funding commitment—with ongoing production of liquid-electrolyte batteries to meet present market demand.
Source: CarNewsChina
