Tech Economy & Money China has been running trials for its digital yuan or e-CNY. Now the People’s Bank of China is hoping to expand usage of digital currency by launching an e-CNY wallet app to more users in select cities. Photo taken on July 7, 2021 shows a digital Chinese currency logo at the World Artificial Intelligence Conference 2021 in Shanghai, China. Costfoto | Barcroft Media | Getty Images China’s central bank has launched a pilot version of a wallet app for the digital yuan in a push to expand its usage to more people. The app is available…