• Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education skip experiences global resources cider press projects digital market permies.com pie forums private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Anne Miller
  • Nicole Alderman
  • Pearl Sutton
  • r ranson
stewards:
  • paul wheaton
  • Mike Haasl
  • Burra Maluca
master gardeners:
  • Greg Martin
  • jordan barton
  • Carla Burke
  • Leigh Tate
gardeners:
  • Jay Angler
  • John F Dean
  • Steve Thorn

DIY Battery Step by Step Instructions

 
pollinator
Posts: 244
Location: USDA Zone 8b
38
monies foraging urban books medical herbs writing homestead ungarbage
  • Likes 2
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I wrote this down a few years ago but can't remember if this type of battery has a name or even what source(s) I got the information from but here is how to make a homemade battery:

1) Create Potassium carbonate (potash):

1a) Soak plant ashes in a pot of water.
1b) Refine Potash into pearl ash (optional)

2) Create Calcium oxide (quicklime):

2a) Burn limestone or seashells at 825 °C (1,517 °F) to remove carbon dioxide.

3) Create Calcium hydroxide (slacked lime):

3a) Mix quicklime with water. CaO + H2O → Ca(OH)2


3) Create Potassium hydroxide (caustic potash):

3a) Add potassium carbonate to calcium hydroxide precipitating calcium carbonate
3b) Filter off calcium carbonate and boil the rest leaving potassium hydroxide.
Ca(OH)2 + K2CO3 → CaCO3 + 2 KOH

3c) alternatively use electrolysis:
2 KCl + 2 H2O → 2 KOH + Cl2 + H2


4)Annodize steel:

4a) Apply DC voltage at 2.6V for 6min to steel (positive) in a caustic potash bath heated to 90C with another piece of steel as the electrode (negative) also in the bath.
4b) Apply WD40 to increase the lifespan of the steel (optional)

5)Annodize copper:

5a) Repeat steps 4a-b for copper.

6)Wrap materials:

6a) Wrap copper in tissue.
6b) Wrap steel in carbon felt (welding blanket) (or any carbon flame retardant or graphite/diamond coat) although carbon felt can go on either the copper or steel oxide.

7) Build Battery:

Electrolyte = caustic potash
Negative electrode = annodized copper
Positive electrode = annodized steel
 
Posts: 129
10
  • Likes 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I am seriously considering keeping the raw materials for this type of battery on hand if SHTF. Gravity Battery

The gravity battery utilizes two common chemicals which create an electrical differential to generate a current.  The "Gravity" aspect refers to how the specific gravity of each chemical causes them to separate themselves naturally into a positive and negative side, all contained in a glass or plastic container.
gift
 
The Greenhouse of the Future ebook by Francis Gendron
will be released to subscribers in: soon!
reply
    Bookmark Topic Watch Topic
  • New Topic