Tucked away on a side road in suburban Beijing, the Xiaowuji battery charging station opened by Sinopec in December 2023 offers a glimpse of China's post-gasoline future. EV sales in the world's largest auto market are expected to account for 40% of the 23 million cars sold this year. China's gasoline demand is predicted to peak by 2025 and could halve by 2045, making a strategic shift an imperative for its biggest oil refiners and marketers, Sinopec and PetroChina.