3D Model of a Lead-acid Accumulator

Introduction

While my identity is of no concern, I still wish to share my idea and motivation.

To put it short, my IT teacher is making my class participate in any instructables contest, which is why I have decided on an "invention" (not really an invention but more like a major innovation) of native origin (Luxembourg woo). My project is closely related to my school orientation which is physics and chemistry, which is why I chose this particular object.

My project consists of a lead-acid accumulator from the year 1881 made by Henri Tudor, who is a Luxembourgish engineer, inventor and industrialist. I have chosen to make my project in 3d since my IT teacher values 3d modelling and making a real functional lead-acid accumulator would be difficult due to lack of resources (and funds).

A 3d printer is needed, sizes can wary based on your preferences since I for instance, am building a small 3d version of a Henri Tudor lead-acid accumulator because there is no need for a life sized one.

(I somehow messed up the sketch while moving the bodies, don't ask me for a solution please)

After having printed all of the parts above, you will have the case, the lid and the negative and positive plates.

While the construction of the lead acid battery is not difficult, I will still explain a simple and quick way.

Firstly, put the 2 plates together as shown in the picture on the left.

Secondly, add the lid through the cylinder as shown in the picture on the top right.

Lastly, put the plates and the lid together into the case to get the result of the bottom left picture.

(If you are curious which Henri Tudor lead-acid accumulator I copied, here is the link to the website where I found it:

https://www.leboncoin.fr/ad/collection/2792014690 )

Now that we have finished the printing and putting together the lead-acid accumulator, the idea of how each component functions should now cross our mind which is why I will give a brief explanation about it.

Henri Tudor's lead-acid accumulator was made in a way that it can efficiently charge up and discharge which allowed the accumulator to be used in industrial ways.

Sulfuric acid is added through the hole in the middle which submerges both plates.

During discharge, the plates react with the sulfuric acid which forms lead sulfate on both sides.

During charge, the plates convert the lead sulfate back into sulfuric acid.

The plates which are being used are also lead dioxide, which is the anode during discharge, and spongy lead, which is the cathode during discharge.

While the sulfuric acid and sulfate are always present and undergo conversion, the lead-acid accumulator still undergoes chemical reactions in which it releases gasses such as Oxygen and Hydrogen, which is why distilled water always has to be added from time to time otherwise the battery will get damaged.

That would be everything, thank you for taking the time to read the third step and if you want to, feel free to research more about lead-acid batteries if this instructable has sparked your curiosity.