Sodium-ion battery producer Natron, a Stanford spinout, has picked up corporates ABB and Chevron in a round bringing its lifetime funding to more than $70m.

Natron Energy, a US-based advanced battery technology spinout of Stanford University, raised $35m yesterday in a series D round co-led by ABB Technology Ventures, the strategic investment arm of power and automation technology producer ABB.
Corporate-backed battery technology fund Volta Energy Technologies and venture capital firm NanoDimension Capital co-led the round, which also included oil producer Chevron and VC firms Khosla Ventures and Prelude Ventures.
Founded in 2012 and formerly known as Alveo Energy, Natron Energy develops battery…