By Nick Carey LONDON (Reuters) – Electric vehicle (EV) battery startup Britishvolt said on Tuesday it will buy German battery cell developer and manufacturer EAS from Bulgaria’s Monbat for 36 million euros ($38.6 million) to help it scale up its own production. The deal is subject to regulatory approval, Britishvolt said. The startup said Nordhausen, Germany-based EAS is a “pioneer in developing and producing large format lithium-ion cells using innovative and compact electrode production technology” ideally suited for its own high-performance, long-range “46xx” battery cell format. “The acqui…