Zinc-battery for mass applications

1. I invent cheap with highest energy density battery made of common and mass produced materials.

2. When working, it is spending Zn and NH4OH, can be cheaply and simply recycled by heat after the battery lifetime ends.

3. Such battery is simply scaled and can be in huge demand.

1. I invent cheap and with highest energy density battery made of common and mass produced materials.

2. When working, it is spending Zn and NH4OH, can be cheaply and simply recycled by heat after the battery lifetime ends.

3. Such battery is simply scaled and can be in huge demand.

Being widely experienced and widely educated engineer, 79, I want to see our world and human living to be a little better.

So I formulate engineering problems as local as global ones of my expertise to help above mentioned purpose and co-operate world widely with real people in real economics to solve the said problems.   

It is known that electric batteries are in very high demand as locally as world widely. My present invention is a cheap battery is made of cheap and mass produced materials and can be fully recycled by heating cheaply too. Both its work and its recycling are without any harmful exhaust, and with energy efficiency near 100%, as each separately as totally too.

Being summarized, in my battery

anode reaction: Zn – 2 e (-) = Zn(+2)

electrolyte reaction:

2 NH4(+) + 2 OH(-) + 2 H2O + Zn(+2) = 2 H3O(+) + Zn(OH)2 solid + 2 NH3

Cathode reaction: 2 H3O(+) + 2 e(-) = H2 + 2 H2O

 And totally:

Zn + 2NH4OH = Zn(OH)2 + 2 NH3 + H2 + 2.45 kWh/kg Zn (theoretically),

H2 + air = (Fuel cell) = additional and practically free electricity of 1.22 kWh/kg Zn,

so totally 3.7 kWh/kg Zn (theoretically) with energy efficiency near 100%, being ordinary for ECG-s,

while the said H2-air  Fuel cell is in order of magnitude cheaper than H2O-electrolizer per kW, so it allows to produce additional electricity practically free.

 For comparison, the most powerful conventional Zn-battery being Zn-air battery that is 1.5 kWh/kg Zn (theoretically).

Further we can thermally recycle:

as the Zn from Zn(OH)2 = ZnO + H2O = Zn + ½ O2 + H2O,

as the NH4OH from NH3 by it solving in the water.

That recycling of our battery is consuming totally the same 3.7 kWh, but heat energy with the energy efficiency near 100% too.