STOCKHOLM, June 9 (Reuters) - Northvolt may seek a stock market listing in the future but have no immediate plans for one, Chief Executive Peter Carlsson said after the Swedish battery maker raised $2.75 billion in equity on Wednesday. “Over time with our growth ambition or financing need, to be in the public market is going to be required,” Carlsson said in the interview. “There is no defined timeline at this point.” Reporting by Supantha Mukherjee and Anna Ringstorm; editing by Niklas Pollard