SolidEnergy, a battery technology spinout of MIT, has received $34m from undisclosed investors, taking its total funding above $50m.

SolidEnergy Systems, a US-based lithium-metal battery technology developer spun out of Massachusetts Institute of Technology (MIT), 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 spun out of MIT in 2012.

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

Qichao Hu, founder and chief executive of SolidEnergy, said:…