Graphene based battery with 25% extra capacity developed in Italy

According to a "leak" to one of the main Italian newspapers, a team in Genova has finalized a new type of battery with an extra 25% of capacity. The official announcement should appear soon on "Nano Letters", and the link below is what you find there if you search for the names of the two scientists leading the initiative (Vittorio Pellegrini and Bruno Scrosati) http://pubs.acs.org/doi/abs/10.1021/nl502429m