Great Wall Motor’s ‘SVOLT’ Battery Company Announces Success in Developing 20Ah Sulfur-Based Solid-State Prototype Cells, Increasing Electric Vehicle Range to 1,000 km

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Great Wall Motor (GWM) maintains its world-class technological excellence through revolutionary technology.

Recently, its EV battery subsidiary, ‘SVOLT’, announced success in developing the first batch of 20Ah sulfur-based solid-state prototype cells in China. This series of cells come with an energy density of 350-400 Wh/kg and have currently passed nail penetration test, and 200 °C hot box test. Once in mass production, they will have the potential to increase the endurance mileage of electric cars to up to more than 1000 kilometers. The success reflects GWM’s position as an xEV leader and its commitment to bringing innovative technologies to increase customer convenience beyond limits.

SVOLT has continuously developed and produced lithium-ion batteries and battery systems for electric vehicles as well as energy storage. In April, it launched the innovative, prismatic-stacking, NCM battery, which has a 5% increase in energy density, a 10% increase in cycle life, and a 15% reduction in cost. Recently, the company further succeeded in becoming the first company in China to complete the research and development of 20Ah sulfur-based solid-state prototype cells, which is regarded as the next generation of advanced battery technology as it is superior to liquid lithium batteries in energy density, charging rate, safety, cycle life, and cell thermal management.

Narong Sritalayon, Managing Director of Great Wall Motor (Thailand), said: “GWM has always been committed to R&D as it can play a crucial role in making our EVs unique and different from others, while also developing the global EV industry to grow further. The current pain point for many EV users is the concern about the battery, which could affect motorists’ journeys and driving experience. Our researchers have continuously explored different materials and options to create an innovative battery to deal with that pain point and ease users’ convenience as they will no longer have to stop by any charging stations on the way to a remote destination. The accomplishment of SVOLT in producing the first batch of 20Ah sulfur-based solid-state prototypes that can go up to 1,000 kilometers gives a positive prospect for the future of EVs, in which Thai consumers will get to experience them in the future.”

SVOLT’s scientific research team and a number of top scientific research institutions are jointly tackling the key problems, overcoming the technical problems required by the breakthrough of all solid-state batteries such as solid electrolyte and interface performance, maintaining stable contact of the long-cycle solid-solid interfaces, realizing the efficient transmission of lithium ions at the interface under high current, and taking the lead in achieving revolutionary technological breakthroughs.

As a global high-tech enterprise with energy interconnection, the Wuxi Lithium Battery Innovation Center of SVOLT and the Ningbo China Institute of Materials Technology and Engineering, Chinese Academy of Sciences, jointly built a solid-state battery technology research center in April 2021, which is committed to promoting the transformation of solid-state battery technology. It has applied for 187 patents, 152 of which are invention patents. SVOLT aims to increase its R&D work in the field of all solid-state batteries to lay a solid foundation for mass production.

GWM, as the ‘Global Intelligent Technology Company’, is committed to taking a user-centric approach and achieving more market-recognized technological achievements along with continuous innovation and technological development. GWM continues to promote its premium brands with leading innovations, and offers products that exceed quality standards and exceptional services together with cutting-edge technologies that are safe and friendly to the environment to enhance the strong foundation of suitable product development, prove corporate social responsibility, and unleash the potential for organizational growth to become a world-class professional.

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