How to make a battery by ourselves

No matter what kind of the battery, cell phone battery, calculator battery or the flashlight battery, these batteries are not easy to make by yourself, especially to do rechargeable batteries. They have certain requirements on the material and equipment.

If you want to do simple battery, you can use the following method for making:

Raw material: a bottle with a plug (preferably with wooden plug), a copper bar, a piece of zinc, a bottle of dilute acid (can replace use, with the car battery electrolyte can in auto parts store/buy or sell battery store)

Methods:

Drill two holes on the bottle stopper, a also insert the copper bar, as long as the copper bar to reveal the cork for a short period to facilitate attachment. Another hole can be inserted into the zinc, zinc can name all into the bottle, just set aside a small article through the cork is easy to attachment.

Take acid or dilute flow battery electrolyte into the bottle, bottle stopper. Dilute flow acid soaking liquid level height with it and the majority of the copper and zinc is dvisable. Note also that the cork sealing, don't let sulfuric acid leaked.

Will connect two wires of copper and zinc as the poles connected with electric cell will have electricity. Can also be two wires connect the voltmeter or multi-meter to measure.

This is a simple battery. Because the production of batteries used in a bottle, and can produce electricity, so this is the origin of the term "battery".

Electrolyte is with a density of 1.84 made from concentrated sulfuric acid and purified water.

Must be careful, sulfuric acid is a strong oxidizer, it has affinity with water, soluble in water gives off a lot of heat, so the operating personnel should wear goggles, acid-resistant gloves, wear rubber shoes or boots, good rubber apron.

Preparation before, to clean the container, to prevent acid splash into the skin, ready to 5% ammonium hydroxide or sodium carbonate solution, and some water, in case of a one thousand splashed acid, can rapidly with the described solution scrub, rinse again.

Choosing the electrolyte concentration, consider the working environment of storage battery temperature. Work under the cold temperature, electrolyte concentration should be high - point, in the hot temperatures, electrolyte concentration can be lower.

In general, at 25 ℃, the electrolyte temperature density is 1.28, at other temperatures can press type calculation:

Da=Dt+0．0007(t-25)

Type of Da is 25 ℃ when the density; The density of Dt for the actual temperature; T for the determination of the temperature of the electrolyte.

Preparation, estimate the first sulfuric acid and water requirement, put the water into the container first, and then pour sulfuric acid slowly into the water, and continually mixing solution.

Just the solution temperature is very high, do not immediately into a battery, wait for the temperature has dropped below 40 ℃, measurement of solution concentration and adjusted to the standard again, add the battery

The most before the first of all, need a 12 v battery charger circuit diagram, dad said it is good to have the figure made, in accordance with the drawings can be clear, convenient to begin production.

Homemade 12 v battery charger

2

To prepare the required materials, you first need to an output ac 12 v5-15 a ac transformer 1, 6-10 a high-power rectifier diode 1, 25 v2200uf condenser tube 1, low voltage power supply control switch 1, 1 220 v power plug, insulation tape 1. You also need to diameter is greater than the high power rectifier diode 0.3 cm30 to 50 cm in diameter rubber hose 1 root (anti leakage type, rectifier diode cooling), plastic bottles a rectifier diode (cooling)

Homemade 12 v battery charger

END

Methods/step 2

The 220 v power plug and transformer input wire connection is good, respectively connected by insulating tape will head wrap. Because the ac power is not negative, so the input random pick up, but the input and output don't make a mistake, in transformer shows that the input and output, must see clearly.

Homemade 12 v battery charger

The rectifier diode at each end with the same length of wire is good, but the total length of more than 30-50 cm the length of the rubber hose, then end through 30 to 50 cm, rubber hose, rectifier diodes in the intermediate position of the rubber hose.

Homemade 12 v battery charger

The 12 v output end of a line and the transformer rectifier diode the positive (or negative) end will be connected with wires and insulation tape head wrap.

Homemade 12 v battery charger

The 12 v output transformer another thread and the positive (or negative) at the connection of the condenser tube, negative (or positive) side and rectifier diode negative (or positive) and wire connection, connected by insulating tape will head wrap.

Homemade 12 v battery charger

Again the terminals to the condenser tube of positive and negative wires (lead, that is, connect the battery at the ends of the line), is extremely connected to the low voltage power supply control switch and the wires and negative extreme length, connected by insulating tape will head wrap.

Lead-acid battery (LEAD - ACIDBATTERY) electrolyte is used in the hydrogen ion concentration is highest when the sulfuric acid solution, the proportion of the sulfur acid is about 1.3 g/cm ^ 3. Whether or traditional and maintenance-free battery is made of the solution.(free maintenance is only used with sulfuric acid absorption of asbestos material to replace the original clapboard, make active material is not easy to fall off, can prolong service life.)

Plate for the lead of the reticular structure is on which the coat chemical reaction of the active material.

Among them: positive plate of the active material of lead dioxide powder, after a full charge looks a little brown.

At the end of the negative plate of active substances for cavernous lead powder, after a full charge for grey metallic lead.

After electrical secondary board are gray.

Discharge: positive plate lead dioxide into lead sulfate, the hydrogen ions in acid electronics into the water.

At the end of the negative plate lead powder into lead sulfate, sulfuric acid root of the electrons in the cathode electron.

The electrons in the outer loop current

Charging: contrary to the above process, lead sulfate into different energy states of lead dioxide and pure lead.

This is the principle of lead-acid batteries. To make only need to buy the material with respect to OK.I think you just need to know, you'd better to buy need to save trouble!

Battery are introduced the background of the invention:

Lead-acid battery as early as the second world war invention, when thespecial is by the battery to coupled, surfaced after using diesel power generation for battery charging. Sailing underwater can only rely on batteries.

Early batteries work principle is the same as the production now, but batteries are less expensive and have longer cycle life now.

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