Supercapacitors have long been far faster charging than batteries but usually have 40 times less energy density (5 watt hours instead of 200 watt hours) compared to batteries.
There are new supercapacitors being commercialized with 60 watt hours of energy density and 100 watt hour energy density is being reported in lab results.
The University of Surrey has reported contact lens polymer materials offering supercapacitors that are between 1,000-10,000 times more powerful than existing supercapacitors.
There are also research on graphene based supercapacitors which also are promising to beat batteries on energy density.
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
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