Graphene composite plastic film as current collector for aluminum-graphite batteries

Publication date: 1 November 2019Source: Materials Letters, Volume 254Author(s): Yu Wang, Fangyu Gan, Kanghua ChenAbstractThe use of rare metals as current collectors in aluminum-ion batteries is an urgent problem to be solved, so there are significant interests in the development of light-weight and high-efficiency materials as current collector. Herein, we report a polyvinyl-alcohol/graphene composite film as current collector in aluminum-ion batteries which synthesized by a simple solution method. The film containing 20 wt% graphene demonstrates high electrical conductivity up to 164S·cm−1 with ∼30 μm in thicknesses and 2.8 mg cm−2 in areal density. According to the electrochemical measurements, a reversible capacity of 89 mAh g−1 is obtained at a rate of 1C in aluminum-graphite battery.Graphical abstract
Source: Materials Letters - Category: Materials Science Source Type: research