Several companies are actively developing and beginning to integrate solid-state batteries into their products.

Most are in the prototype or pilot production stage, a few have started limited commercial deployment, especially in niche markets.

NIO: The Chinese EV manufacturer is already offering a 150 kWh semi-solid-state battery in partnership with WeLion. It’s compatible with existing NIO models and supports battery swapping, enabling ranges up to 577 miles. NIO batteries are classified as "semi-solid-state" rather than fully solid-state.

Volkswagen Group (PowerCo/QuantumScape): Volkswagen, through its PowerCo battery subsidiary, has secured a licensing deal with QuantumScape to mass-produce solid-state cells. While full-scale commercial vehicles with these batteries are expected later this decade, pilot production and integration into test fleets are underway, with an initial capacity of 40 GWh annually targeted, as per EV Magazine.

Toyota: Toyota is targeting mass production of solid-state batteries for hybrid vehicles by 2027-2028, with a goal of deploying them in fully electric vehicles. Their technology aims for a 750-mile range and a 10-minute charging time, with initial commercial use expected in hybrids before scaling to EVs, according to Monolithai.

Solid Power: Backed by BMW and Ford, Solid Power has completed pilot production of all-solid-state batteries and is supplying cells to its automotive partners for testing and integration. Mass production is targeted for 2026, according to Moneywise and Exoswan.

Samsung SDI: Samsung has developed solid-state battery prototypes with a range of up to 800 km (about 500 miles) and a lifespan exceeding 1,000 cycles. The company has delivered samples to customers, with mass production aimed for 2027, initially targeting premium EVs and high-end applications, EV Magazine and GreyB reported.

Panasonic: In partnership with Toyota, Panasonic is developing sulfide-based solid-state batteries, with plans to begin EV production by 2027 and expand to industrial applications by 2029. The company is taking a gradual approach, leveraging its lithium-ion expertise for scalable manufacturing.

CATL and BYD: Both Chinese battery giants are advancing solid-state battery research and have announced plans for small-batch production and initial deployment in luxury or high-end EVs by 2027, with broader rollout to follow, according to Ecolithiumbattery.com..

Murata: Specialising in small-scale solid-state batteries for wearables, medical devices, and IoT sensors, Murata is already producing solid-state batteries for these applications and targets mass production by 2027. Their batteries are not yet used in EVs but are present in specialised electronics, according to Exoswan.

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