Aspen Aerogels has raised US$150 million in financing from a Koch family investment firm to help grow its aerogel thermal barrier technology division, including new products which prevent thermal runaway in batteries.
Thermal storage startup Antora Energy has raised US$50m from a group of investment firms including Bill Gates’ Breakthrough Energy Ventures to accelerate the development of its heat-based carbon block energy storage system for heavy industry.
Battery storage companies raised 159% more corporate funding in 2021 than in 2020, with funding activity reflecting the “significance of battery energy storage in the energy transition,” analysis group Mercom Capital has said.