Found this review for Outlander PHEV forum that talks about the engine, motor, generator and battery as well as other features of Mitsubishi Outlander PHEV.
http://www.whatcar.com/car-news/mitsubishi-outlander-phev/265490
Actually, this Outlander PHEV forum has a lot of information about the car. From my point of view, the most striking fact is that the batteries can be charged in domestic conditions and it takes only about 4 hours.