What are the best containers for electricity, and why?

Question

I just had a curious moment, and decided to look it up, but upon searching with Yahoo, or Google, didn't really find anything of use. Upon trying Wikipedia, I just got a huge headache. I just want to know what the top five or so containers for electricity are, and why they are the best, you know, what makes them hold electricity so well.

Thanks!

Answer 1

What the heck is a "container" for electricity? Capacitors store electrical charge and that's probably as close as you're going to get for a "container" for electricity...

Answer 2

Everything (?) you wanted know about batteries but were afraid to ask, but you did.

http://michaelbluejay.com/batteries/

Answer 3

1. Rechargeable battery

2. Capacitor

3. Flywheel motor/generator

4. Pumped water reservoir pump/generator

5. Hydrogen gas

Answer 4

rubber for its large amounts of space between pieces of rubber there for electricity can not pass easily