China Accelerates Solid-State Battery Race with First Sulphide Road Test and 30 GWh Production Push

August 9, 2026

Shanghai Metals Market China

Overview

China has achieved a significant milestone in next-generation battery technology with Zhongke Yuanben completing the nation’s first road test of a sulphide all-solid-state battery-powered vehicle. This technical validation is rapidly accompanied by industrial expansion, including Guoci Materials constructing sulphide electrolyte production and Tuoyi Guneng launching a massive 30 GWh project in Inner Mongolia, alongside substantial capital influx into the sector. Such integrated developments, including international partnerships like Factorial and SK On, signal a rapid global movement towards ASSB commercialization leveraging existing production capabilities.

In Depth

Background

All-solid-state batteries (ASSBs) are widely regarded as a pivotal next-generation technology, promising superior safety, enhanced energy density, and extended lifespan compared to conventional lithium-ion batteries that rely on liquid electrolytes. Their potential in the electric vehicle (EV) sector is particularly transformative, prompting China to aggressively pursue ASSB research, development, and industrialization as a national strategic imperative. Sulfide-based electrolytes, a leading material candidate due to their high ionic conductivity, have historically faced challenges related to air stability and interface compatibility. The recent successful road test, however, marks a significant breakthrough in addressing these complexities, underscoring China’s accelerated trajectory towards global leadership in ASSB innovation.

Key Findings

China’s Zhongke Yuanben (中科院本) has achieved a major milestone by successfully completing the nation’s first road test of a vehicle powered exclusively by a sulfide-based all-solid-state battery (ASSB). This groundbreaking accomplishment conclusively demonstrates the practical viability of ASSB technology in real-world driving environments, marking the completion of a critical validation phase essential for commercialization. The rigorous road test validated the robust performance and inherent safety attributes of sulfide ASSBs under diverse public road conditions.

Technical Details

Concurrent with the successful road test, the Chinese ASSB industry is experiencing multifaceted advancements across its value chain. Guoci Materials (国瓷材料) is actively establishing a mass production line for sulfide electrolytes, a critical component for ASSBs, thereby bolstering the foundational material supply infrastructure. Further amplifying capacity, Tuoyi Guneng (拓遠谷能) has unveiled plans for a substantial 30 Gigawatt-hour (GWh) all-solid-state battery project in Inner Mongolia, representing a significant investment of 6 billion RMB (approximately 1.2 billion USD). This initiative aims to address anticipated large-scale demand for EV batteries. On the financial front, WELION New Energy (衛藍新能源) has completed a pre-IPO funding round, securing a valuation of 20 billion RMB (approximately 4 billion USD), underscoring robust investor confidence in the sector. Internationally, Factorial Energy has forged a strategic partnership with South Korea’s SK On, with plans to repurpose existing lithium-ion battery production lines to accelerate solid-state battery industrialization, potentially yielding significant reductions in manufacturing costs and development timelines.

Strategic Significance & Outlook

Zhongke Yuanben’s successful road test critically enhances the commercial viability and public trust in ASSB technology. The concurrent establishment of mass production capabilities by Guoci Materials and Tuoyi Guneng’s substantial project announcement will rapidly integrate the supply chain, from raw materials to finished products, thereby fostering a robust and self-sustaining ASSB ecosystem within China. The significant capital infusion into WELION New Energy is expected to catalyze further technological innovation and market penetration. Furthermore, the Factorial-SK On partnership offers a compelling model for rapid industrialization by leveraging existing manufacturing infrastructure, potentially reshaping global battery production strategies. Collectively, these advancements strongly suggest that ASSBs are on the cusp of substantial integration into the electric vehicle market within the foreseeable future.

Source: https://news.metal.com/en/newscontent/104046556-chinas-first-sulphide-all-solid-state-real-vehicle-road-test-completed-30-gwh-class-projects-intensively-implemented-smm

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