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GDI tests world’s first fully silicon battery anode

EIT InnoEnergy supported battery technology company GDI has launched and tested a battery containing a 100pc silicon anode, in a first step towards non-graphite anodes for the industry.

Navitas' new anode material significantly increased energy density by over 30% in third-party tests, while maintaining stability in other components. The battery also passed the industry-standard "nail penetration test," showing resilience to thermal runaway. Unlike silicon-graphite composites, GDI's silicon anodes avoid expansion-related issues, offering potential benefits in charging times, safety, cycle life, and overall efficiency for electric vehicles. Silicon's diverse production, unlike graphite's concentration in China, makes it a promising option for battery makers globally.

This is a tremendous milestone for us and the industry. The next step is to show our anode can enable EV batteries that power vehicles with over 500 miles of range, allow them to charge 250 miles in 15 minutes hundreds of times, and improve safety

GDI founder and chief executive, Rob Anstey 

GDI in September 2022 formed an alliance with AGC Glass Europe and Carl Schenk AG to scale up its production of anodes, initially to 100MWh in 2024 and eventually to 10GWh by 2028. AGC will provide industrial equipment and GDI earlier this quarter demonstrated its first "roll to roll" production line in Lauenforde, Germany.

GDI and AGC have developed a clear roadmap to gigawatt scale production by 2028, so that this technology can be used in tens of thousands of high-performance vehicles by 2030

GDI founder and chief executive, Rob Anstey