2013 Fiat 500e.automotiveIT

The Fiat 500e, which was unveiled at the Los Angeles auto show, is the first EV with a Bosch battery pack (Photo: Fiat)

Robert Bosch, formalizing the dissolution of a battery joint venture with Korea's Samsung, has established a new division to build and market battery systems.

The German automotive supplier said Robert Bosch Battery Systems, which includes the former SB LiMotive joint venture as well as Michigan-based Cobasys LLC,  will focus on building complete battery packs for electric vehicles.

The first EV with a Bosch battery pack is the Fiat 500e, which was unveiled at the Los Angeles auto show last month.

Bosch isn't severing all ties with Samsung. The electronics group will be the cell supplier for Bosch's battery packs, though the German company stressed in a press release that it may use cells from other manufacturers as well.

Bosch and Samsung will continue to cooperate in the area of EV batteries and have agreed to give each other access to their patents.

Despite the slow start of electric vehicle sales in most major markets, Bosch expects demand to pick up sharply by 2020. The company, the world's largest automotive supplier, is investing 400 million euros a year in electric mobility and has 1,100 staff working in this area. It has 500 battery specialists in Germany, the US and China.