SVolt Semi-Solid Battery B-Sample Launched with Innovative Tech

SVolt Energy has officially launched the B-sample of its semi-solid battery in Wuxi on September 16. The battery utilizes a globally pioneering "electrolyte thermal composite transfer printing process," offering the industry’s most cost-effective and scalable semi-solid solution without compromising performance, safety, or energy density.

Through its self-developed electrolyte thermal composite transfer printing technique, SVolt has overcome core challenges in semi-solid battery industrialization. The method enables highly efficient electrolyte coating transfer, increasing transfer rates from 20% to over 95%. Unlike conventional approaches, SVolt’s innovation requires no modifications to existing production lines, ensuring compatibility with current equipment. It also enhances safety performance by 50% while improving yield and production consistency.

Safety performance stands out, with the new battery achieving 100% prevention of thermal propagation and passing rigorous tests including nail penetration, heat exposure, crushing, and seawater immersion. The battery has already secured a partnership with a European luxury automotive brand. The second-generation model will reach an energy density of 360Wh/kg and has been delivered for testing in a state-owned eVTOL project. Future versions aim for 400Wh/kg or higher to meet demands in premium EVs and low-altitude economy applications.

SVolt is committed to a clear technology roadmap—starting from mass production of semi-solid batteries, advancing to higher energy densities, and eventually achieving all-solid-state batteries. The company has established the world's largest dedicated production line for semi-solid batteries, with 2.3GWh capacity. Mass production is scheduled to begin in November 2025, with volume deliveries expected by 2027.

This breakthrough by SVolt paves a new path for low-cost, high-efficiency mass production in the industry. Through innovations in materials, processes, and manufacturing capabilities, SVolt is accelerating the large-scale application of semi-solid batteries in high-end markets, supporting the global transition toward the solid-state era.