HEFEI, July 20  -- At Tianying technology park in Jieshou of east China's Anhui Province, materials such as lead and plastics found in waste batteries are reused through a series of processes. To promote circular economy, Jieshou has built one of the largest power battery recycling and production bases in China with a full-fledged recycling system and related industries. Each year, the city recycles 1.6 million tonnes of waste batteries.