The GM, Applied Materials and SAIC-backed battery technology developer has received $34m from undisclosed investors, taking its total funding above $50m.

SolidEnergy Systems, a US-based lithium-metal battery technology developer that counts corporates General Motors, SAIC Motor and Applied Materials as investors, closed a $34m series C round on Monday.

The company did not disclose the participants in the round, which it said increased its overall funding to more than $50m since it was founded as a spinout of the Massachusetts Institute of Technology in 2012.

SolidEnergy is working on rechargeable semi-solid lithium-metal cells that could be produced using existing lithium-ion manufacturing…