Ambri, with its liquid metal battery technology, has returned to the energy storage race after "a pause" in which it redesigned its high-temperature seals and worked on other facets of its storage system. Getting an entirely new and novel battery chemistry to commercial scale is Sisyphean work. About a year ago, the firm had to lay off approximately 25 percent of its staff because the startup had "not made the technology progress [it] had anticipated." The CEO said at the time, "Bringing new scientific discoveries in the physical sciences to commercial success is hard; the process is not entirely knowable or amenable to predictable timelines." The firm had been working on prototype storage systems with project partners such as Hawaiian Electric and Con Edison.