3.12 high-energy battery pack and system battery pack (3.2) and system (3.3) using cells, which have the numerical ratio between maximum allowed electric power output and electric energy output at a 1C discharge rate at RT lower than 10 3.13 high-power battery pack and system battery pack (3.2) and system (3.3) using cells, for which the numerical ratio between maximum allowed electric power output and electric energy output at a 1C discharge rate at RT equal to or higher than 10