I was reading about battery as one of the key barriers for mobile technology evolution. The capacity of battery has increased only 2 times in last 10 years whereas processing speed has gone 12 folds up. Here is a graph I came across showing Battery evolution with time.
I am just wondering, what is actually changing over time. Does it follow the TRIZ laws of technology evolution? At least two major trends I know
Increasing Contrability and Dynamics
Moving from MACRO to micro (Field changes from Mechanical –>Thermal –>Pneumatic /Hydraulic–>Chemical –> Electrical–> Electromagnetic)
Apparently I am not able to link the battery trend with evolution priciples. Your views will help to bring more insights.