Business Green: US-based A123 Systems has landed a further $169m (£113m) in funding to help bolster its nanotechnology based battery manufacturing capacity in the wake of recent supply deals with a number of high-profile electric car firms. The firm secured a $69m investment from General Electric (GE), and also announced $100m in tax credits from the Michigan Economic Development Corporation. This is the seventh time that GE has invested in A123, and the former now owns a 10 per cent stake in …