Blue Current, a US-based specialist in high-performance solid-state batteries, has raised more than $80mn in an extension of its Series D funding round. The deal was led by Amazon, with participation from Koch Disruptive Technologies, Piedmont Capital, Rusheen Capital Partners and Allen & Company. The fundraising aims to industrialise Blue Current’s silicon-based battery platform, designed to meet the needs of both stationary storage and mobility applications.
Objective: industrialising a silicon-based technology
Blue Current’s technology is based on a solid-state battery design that combines elastic polymer silicon anodes with dry electrolytes, in an approach designed to reduce thermal risks and improve energy density. The entire platform was developed to be compatible with existing lithium-ion battery production infrastructure, allowing for rapid industrial scaling within the United States.
The investment supports the commercial rollout of a solution presented as safe and adaptable, suitable for energy storage networks or electric vehicles requiring faster charging times and extended range. Blue Current has indicated that several formulations have been optimised to address the specific demands of each sector.
Amazon executive joins board of directors
As part of the deal, James Hamilton, Senior Vice President and Distinguished Engineer at Amazon, is joining Blue Current’s board of directors. He highlighted the importance of making solid-state batteries affordable and capable of meeting the growing demand, particularly for stationary storage and long-range electric vehicles.
Blue Current Chief Executive Officer Susan Stone stated that the goal is to deliver a commercially available, safe solution on an accelerated timeline. She added that the technology enables multiple high-value use cases while reinforcing domestic production capacity.
Ongoing support from industrial partners
Kevin Wujcik, co-founder and Chief Technology Officer, said the company had spent over a decade on research and development of the silicon-based architecture. According to him, renewed financial backing from Koch Disruptive Technologies and Amazon’s entry will enable Blue Current to take a decisive step towards commercialisation.
This fundraising comes in a context of strong demand for safer and higher-performing batteries, particularly in segments where traditional lithium-ion technologies are reaching their limits. Investors are betting on the company’s ability to rapidly deliver industrial volumes while maintaining manufacturing cost control.
