Quote:
Originally Posted by knc1
For those who do want to try making their own SuperCapacitor, but don't want to fiddle with making all of the components - -
You already have a solution of graphene nano platelets -
The e-ink in your Kindle screen.
Paint (or print) onto metal collectors, use chemistry filter paper as the separator with either salt water or Lithium Sulfate (which may be in your anti-mania pills)/Water as the ion coupling, package as desired.
== a 4.2 volt SuperCapacitor (when using Lithium Sulfate solution - 1.9 volt if salt water)
= = = = =
Your display screen will not be of much use after draining the e-ink, but at least you will have bragging rights to a SuperCapacitor powered Kindle.
= = = = =
Note: Graphene nano platelets are retailing for about $50 USD a gram.
All of those broken Kindle screens just went up in value.
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But the eink is encapsulated in beads, which would need to be melted or dissolved. And some eink technologies claim to use both black and white charged particles, but we already know how to electophoretically separate them if we need to.