We develop and analyze sustainable battery systems in particular rechargeable aluminum ion battery system (AIB) as a low cost and non-flammable storage system. We have demonstrated energy densities of 135Wh/kg regarding the active mass by using graphite as cathode material. Our AIB can be charged and discharged in less than 20 seconds. The process is reversible and we have shown more than 10.000 cycles with a charging efficiency of over 90% in lab and coin cells. We test application-relevant cell designs such as pouch cells. The currently achieved performance of the AIB is already comparable to NiMH batteries. Thus, AIB have a great potential for stationary and mobile applications.