Batteries / Capacitors


Batteries / Capacitors

There are many ways to generate electricity but storing it requires batteries or capacitors, which need to be charged often.

The purpose of this educational group is to research and experiment to create batteries and capacitors that can store more power, charge quickly and last longer.

All ideas are welcome especially from makers, technicians and electricians.

If your topic isn't already covered in the discussions below, feel free to start a new discussion.

I suggest the comments be used for links and news etc, but more in-depth articles deserve their own discussion.

Location: world
Members: 10
Latest Activity: Jul 11

Common Parts and Terminology


  • Cathode electrode - Negative battery side - more reactive metal (Magnesium or Zinc for example)
  • Anode electrode - Positive battery side - nobler metal (Copper or Graphite for example)
  • Electrolyte - electrically charged substance which supports the transfer of chemical energy between the electrodes - typically acid or alkaline


  • Two electrodes - able to hold an electrical charge difference - can both be the same materials such as Aluminium foil or drink cans
  • Separator - an insulator such as plastic or air to separate the electrodes

Separators for batteries can be thin membranes such as tissue paper or J cloth, and can be soaked in the electrolyte after positioning / placement. 

Separators for Capacitors can be thin sheets of dry paper or plastic such as lamination sheets, dust sheets, bin liners or thin plastic shopping bags. Oil is also a good insulator.

Form factor: Both the battery and capacitor should have electrical contacts (lugs) and an enclosure or container such as a plastic or metal casing of a size and shape suitable for the intended use.

A Cell is one set of Cathode / Anode / Electrolyte in a single insulated container.

Surface Area of the electrodes is important in providing enough Amperage for your appliances, to power a 12 Volt drill for example. Surface area can be increased by using metal mesh instead of plates or rods, or electroplating some Graphite or Carbon nano-tubes onto your electrodes.

Arrangement of battery cells:

  • Parallel (like a bunch of daisies) - to increase the Amperage (current) 
  • Series (like a daisy chain) - to increase the Voltage

Typically we are aiming for 12V or 5V and as much Amperage as possible.


Power (current) is shown in Watts and is Volts X Amps

If you are running a motor, a higher voltage battery will make it run faster, and a high Amps battery will make it run for a longer time.

A higher current will also produce more torque in a motor, meaning it has more turning power.

Insulator and Conductor:

A good Insulator will block the flow of electricity between parts, such as plastic, paper, glass, air, oil, etc.

A good Conductor will allow the electricity to flow, such as copper wire, graphite, salt water, silver, gold, etc.

Discussion Forum

Cement Battery

Started by Spirality. Last reply by Spirality Jul 11. 1 Reply

When you mix cement and water glass 50/50 you get a…Continue

Tags: mg, mold, magnesium, grout, free

Electrolyte - Water Glass (Sodium Silicate) Glue

Started by Spirality. Last reply by Spirality Jul 7. 2 Replies

Water Glass is a very old craft item that was diluted and used for preserving eggs in the days before fridges.  It is also used as a very strong heat-resistant glue for making fire bricks, forges,…Continue

Tags: heat, forge, bricks, proof, home

Cathode and Anode Metals (reactive metals table) electrodes

Started by Spirality. Last reply by Spirality Jul 7. 1 Reply

This list of reactive metals is mostly from wikipedia.It should help if you are determining which metals to use in your…Continue

Tags: zinc, magnesium, carbon, lithium, sodium

Quick Conversions

Started by Spirality Jul 6. 0 Replies

These are some quick and approximate (ball-park) conversions between metric and imperial to help you do calculations in your head.....Volume  1 fl oz = 30 ml  (fluid ounces and milliliters) 1 quart …Continue

Tags: american, european, quick, imperial, metric

Comment Wall

Add a Comment

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Comment by Woman on July 9, 2017 at 9:22

a link to shazizz our fave free energy brother.

Comment by Spirality on July 6, 2017 at 17:48

A link to my research article on Sodium Crystal batteries


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