Pre Potassiation of Anode Easier Than Once Thought.

A project log for Potassium Sulfur Silica Battery

In the future lithium reserves may not be as easy to mine as they are today, Potassium could be an alternate alkaline metal for batteries.

mechanicusMECHANICUS 03/29/2016 at 03:570 Comments

Thats a word I created it.


KOH and SiO2 in water heated to 90 degrees Celsius yields a water soluble compound.

So today I performed these reactions with an excess of SiO2 to decorate the surface of the diatoms with K2SiO3 or K2O•nSiO2

The balanced equation is as such n SiO2 + 2 KOH → K2O•nSiO2 + H2O from wikipedia.

The K2SiO3 is soluble in water hence the need for an excess of SiO2, this is boiled to dryness and the soluble K2SiO3 will crystallize on the surface of the diatoms.

The best news is it avoids all the patents :)^10

Also I can use the exact same strategy to make Li2SiO3 for which there is no wiki page.


I heated the dried K2SO4 today in a crucible with the activated carbon to synthesize the K2S. Both these materials need to be combined with carbons(graphene or carbon black)/metal powders to make them conductive. Also an excess mass molarity of sulfur needs to be combined with the K2S. At this point however neither the anode or cathode can come into contact with water as they are reactive and soluble with such.


KNO3 in THF and emulsifier??? I have no idea yet, more later.