Anadolu Agency | Getty Images BMW has officially opened its new 15 billion yuan ($2.2 billion) factory in Shenyang, China with a strong focus on electric vehicles. BMW has some catching up to do in China, the world's largest electric vehicle market, where U.S. rival Tesla and domestic players such as Warren Buffett-backed BYD, dominate sales. BMW is aiming for more than a quarter of its sales in China to be all electric by 2025. BMW has officially opened its new 15 billion yuan ($2.2 billion) factory in China with a strong focus on electric vehicles as it tries to…