Bosch, Continental, Hyundai, Edison Electron One.

Bosch buys Californian start-up Seeo: The automotive supplier believes in the solid-state cell as possible “breakthrough technology.” Because the solid-state anode can be made of pure lithium, this allows a considerable increase of storage capacity, and Bosch hopes to more than double energy density by 2020, while and at the same time, halve the costs.
automotiveworld.com, bosch-presse.de

Battery cell production, take two: Continental is looking to re-enter the battery market and may consider forming a joint venture to get its foot in the door. At the IAA in Frankfurt, Continental CEO Elmar Degenhart said that no decisions have been made yet and that it was too soon to give any further details.
welt.de, finanzen.net (articles in German)

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New Hyundai N sub-brand: The carmaker revealed its Hyundai N 2025 Vision Gran Turismo concept in Frankfurt, the first model of the company’s new performance brand N. The car is powered by a hydrogen fuel cell stack boasting 500 kW. By capturing regenerative braking, a super capacitor tops off performance, pushing the total output to 650 kW.
electricautosport.com, motoring.com.au

H2-powered super EV update: The graphene-based fuel cell powering the Edison Electron One supercar (we reported) will be on display at the Battery Show 2015 in Detroit. It is said to give the car unequalled traction control and push it from o to 60mph in just over two seconds. Developers SunVault Energy and the Edison Power Company also released a tiny glimpse at the EV.
electriccarsreport.com