Geely to Pilot 500 Wh/kg Solid-State EV Batteries in 2027, Promising 1,000 km Range and 1 Million km Lifespan

Electrek China

Overview

Geely Holding announced plans to begin pilot deployment of next-generation solid-state batteries (SSBs) with an energy density of 500 Wh/kg in 2027 across its various brands. These batteries are projected to enable electric vehicles (EVs) to achieve over 1,000 km (621 miles) of range and boast a lifespan of 1 million kilometers. Vehicle validation tests commenced in 2026, marking a significant step towards overcoming current battery limitations and accelerating EV adoption.

In Depth

Key Findings

Geely Holding has unveiled ambitious plans for its next-generation solid-state battery (SSB) technology, announcing that pilot deployment in its subsidiary brands will commence in 2027. This groundbreaking battery is claimed to achieve an energy density of 500 Wh/kg, which could enable electric vehicles (EVs) to travel over 1,000 km (621 miles) on a single charge and offer an exceptional lifespan of 1 million kilometers. This represents a significant leap forward in battery performance, aiming to address critical consumer concerns regarding range anxiety and battery longevity.

Technical / Clinical Details

The 500 Wh/kg energy density marks a substantial improvement, nearly doubling the energy storage capacity of current mainstream lithium-ion battery packs. This high energy density, combined with the inherent safety advantages of solid electrolytes—which eliminate the risk of liquid electrolyte leakage and associated fire hazards—positions Geely’s SSB as a transformative technology. Dow Chemical is a key material development partner, having contributed stable adhesive solutions that maintain performance across extreme temperatures, ranging from -40°C to 120°C. Real-world vehicle validation tests for these batteries began in 2026, transitioning from laboratory benchmarks to practical, on-road conditions.

Background & Context

The global automotive industry is in a fierce race to develop and commercialize solid-state batteries, which are seen as the ultimate successor to conventional lithium-ion batteries. Higher energy density, enhanced safety due to non-flammable solid electrolytes, and extended cycle life are pivotal for accelerating EV adoption. Geely’s broad portfolio of brands, including Zeekr, Lynk & Co, Volvo, Polestar, Lotus, and Smart, positions the company to integrate this advanced battery technology across a diverse range of vehicles, leveraging a unified platform strategy. This move places Geely at the forefront of the SSB development race, directly competing with other global players.

Strategic Significance & Outlook

The planned pilot deployment in 2027 is a critical milestone that could reshape the EV landscape. If successful, Geely’s SSBs would significantly boost the competitiveness of its EV offerings, making long-distance travel and rapid charging more feasible. The promise of a 1,000 km range and a 1 million km lifespan could dismantle remaining barriers for consumers hesitant to switch from internal combustion engine vehicles, potentially even outperforming diesel vehicles in terms of efficiency and environmental impact. As battery technology continues to evolve rapidly, Geely’s aggressive roadmap for SSB commercialization will be closely watched by the industry and investors alike.

Get our weekly technology intelligence — free

Receive an infographic that lets you judge at a glance whether each field’s analysis report is worth reading.

Subscribe Free — Weekly Tech Intelligence

By subscribing, you’ll receive Troy-Technical’s weekly technology intelligence newsletter.

• Your email and selected fields are used only to deliver the newsletter.
• We never share your information with third parties.
• You can unsubscribe anytime via the link in each email.

See our Privacy Policy for details.

Agree & Continue ▶

Takes about a minute · Unsubscribe anytime