Oct 11 (Reuters) - Electric-vehicle maker VinFast Auto said on Wednesday it would acquire battery tech maker VinES from its chairman, Pham Nhat Vuong, under which it would assume 11.122 trillion Vietnamese dong ($455 million) in debt. ($1 = 24,440.0000 dong) (Reporting by Akash Sriram in Bengaluru; Editing by Sriraj Kalluvila)