Thank you for the awesome summary. I still think super capacitors for batteries would be a better future. If we need it to last longer we can carry solid state battery power bank.
The issue is how long does it take to charge as opposed to how long for most instances if phones only took 20 seconds to charge but lasted hours, especially if it was wireless it would be more practical.
Advantages of Super Capacitors:
Long Life - Supercapacitors have many advantages. For instance, they maintain a long cycle lifetime—they can be cycled hundreds of thousands times with minimal change in performance. A supercapacitor’s lifetime spans 10 to 20 years, and the capacity might reduce from 100% to 80% after 10 or so years.
- Temperature performance is also strong, delivering energy in temperatures as low as –40°C.
And then the TOO GOOD TO BE TRUE UCF story "You could charge your mobile phone in a few seconds and you wouldn't need to charge it again for over a week," says UCF postdoctoral associate Nitin Choudhary.
The issue is how long does it take to charge as opposed to how long for most instances if phones only took 20 seconds to charge but lasted hours, especially if it was wireless it would be more practical.
Advantages of Super Capacitors:
Long Life - Supercapacitors have many advantages. For instance, they maintain a long cycle lifetime—they can be cycled hundreds of thousands times with minimal change in performance. A supercapacitor’s lifetime spans 10 to 20 years, and the capacity might reduce from 100% to 80% after 10 or so years.
- Temperature performance is also strong, delivering energy in temperatures as low as –40°C.
http://electronicdesign.com/power/can-supercapacitors-surpas...
And then the TOO GOOD TO BE TRUE UCF story "You could charge your mobile phone in a few seconds and you wouldn't need to charge it again for over a week," says UCF postdoctoral associate Nitin Choudhary.
> https://www.engadget.com/2016/11/22/super-capacitor-battery-...