Agence France-Presse: A US firm Thursday unveiled plans to build a massive one-billion-dollar (667 million US) charging network to power electric cars in Australia as it seeks cleaner and cheaper options to petrol. Better Place, which has built plug-in stations for electric vehicles in Israel and Denmark, has joined forces with Australian power company AGL and finance group Macquarie Capital to create an Australian network. Under the agreement, Macquarie will raise one billion dollars to build …