Specialist climate technology investor Clean Growth Fund has announced a pre-seed investment in battery materials startup AmpliSi. The company, a spin-out from the University of Sheffield, develops silicon anode materials, an input for lithium-ion batteries.
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The investment marks CGF’s first deployment of funds from its £150m Fund II – which secured a first close of £49m last year. Northern Gritstone, another technology investor will also join the round.
The company’s technology proposition – silicon anodes – offer an alternative to today’s graphite anodes. AmpliSi says their product is relatively lower cost and overcomes scaling issues in existing silicone anode technologies.
“Silicon anodes have long been recognised as offering dramatic performance advantages over current anode materials in battery systems. AmpliSi’s technology directly addresses the challenges that have restricted the widescale adoption of silicon anodes to date, including the emissions intensity of current manufacturing processes”, said Beverley Gower‑Jones OBE, managing pat Clean Growth Fund.
Currently, battery anode manufacturing relies heavily on graphite. IEA analysis shows graphite markets are increasingly vulnerable to supply shocks, given the scale of demand and limited availability of substitutes.
Backed by fresh capital, AmpliSi will look to deploy its product at scale, targeting the battery manufacturing industry. “This investment allows us to move beyond proof-of-concept and concentrate on scaling a product that delivers real commercial value to battery manufacturers, without introducing unnecessary cost or complexity”, said Dr. Ruth Sayers, the company’s chief executive.
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