How to make a generator by a battery car motor

Homemade simple battery discharge meter

Electronic enthusiasts often need to use a dummy load when debugging equipment or repairing the battery. The discharger can input 3 to 60V voltage and the maximum discharge current is 10A. Due to the small number of components, the debugging is easy and suitable for beginners.

Required materials: one piece of iron, one head of D412-5, one of 2KW electric stove and electric furnace, one 10A switch, one single-pole switch of 2 gear, one indicator of 60V, one adjustable resistance of 1 megohm, one crocodile 3 clips (2 red, 1 black), 2 m 2.5-inch sheath line (1 m for red and 1 mm for black).

Production: Connect as shown below. The electric wire taps are: 1.2, 2.4, 3.6, 4.8, 5.2, 10, 12 ohms. The shunt can be wound by itself with a 1 mm square enameled wire. The required length depends on the multimeter to measure the actual current and the head swing position. When the voltage indication is not on time, the 1 megaohm resistance can be adjusted.

Under the battery first, welding wire, with a clean cloth to wipe, the next step is to open cover, each cell has a vent, general battery vents are at the edge of the lid to see there is a gap, that is, exhaust with a screwdriver on the gap, by hand with a screwdriver, screwdriver head into the vent, and then upwards points, and then went on to shoot (the middle of the small battery cover up, because the inside of the openings on both sides of vent, but the battery needs to test, because the inside of the opening in the middle, so as not to damage the inside of the rubber cap), become warped again, how to make a few times, battery cover can become warped down, don't be too rough.

The methods and steps for electric vehicle batteries with distilled water

Open after you will find that there are six hats, but at this time of "leap" two, might fly off several rubber cap, so when opening the cover not to take off the lid, take off slowly, and cover with the hand, to prevent the rubber hat flew off, because maybe the battery internal pressure at this time. Carefully remove the rubber cap, white is the absorbent cotton, don't take off.

Can hydrate, each hole and then 7 ml (electric motorcycle battery and 12 ml), liquid (no supplement to the supermarket to buy a bottle of distilled water can also remember not electrolyte) in accordance with the order, will not make a mistake.

The methods and steps for electric vehicle batteries with distilled water

After adding water can cover the rubber cap, absorbent cotton also want to recover the same, do a good job in after can cover, and so on, however, see the next step.

Use a small screwdriver to pry the PVC glue, put a little glue on the cover and the battery, then you can cover it, not too much glue, so as not to be difficult to open next time, and too much may flow to the rubber cap, so The rubber cap was sealed and it was originally exhausted but could not be vented.

After the water is added, it is best to stand still for 24 hours and then recharge. It is really anxious to use the car the next morning. You can also charge it immediately. If you are not in a hurry, then wait for one night to recharge, so that you can let the water Better absorption, the electrolyte concentration at each position inside the battery is the same.

The methods and steps for electric vehicle batteries with distilled water

The battery, the warranty period or the accumulator can be automatically turned green and water is not recommended

Here I share the generator made with the battery car motor. As long as you love to think and do it, making is a very simple matter. The rear wheel of the battery car is the generator.

How to make a generator from a battery car motor

Here I'll share the production process in the form of model. Actual production is also the same. Use wooden frame instead of stents. As shown, made two boards than tire radius of protection, and then use a as the thickness of the plate and wheel connect two boards.

In the middle of the board to support saw groove position. Then put battery car rear wheel in the groove. Then use two angle irons, one on each side, and connected by screws. Two angle irons hold the axles tight.

Using the screw under the Angle fixed, the purpose is not which changes the position of the shaft.

Turn the wheel by hand to turn it flexibly. And the bracket should be stable solid.

Electric vehicles is power source of electric vehicle batteries, now the majority of electric vehicle are lead-acid batteries, lead-acid battery of low cost, high cost performance. Because this battery can be charged and can be used repeatedly, it is called a “lead-acid battery”.

Of plant in 1860, the French invented the use of lead in battery electrodes, which is the precursor of the lead-acid battery.

The following four types of power batteries can be used by electric bicycles, namely valve-regulated lead-acid maintenance-free batteries, colloidal lead-acid batteries, nickel-metal hydride batteries, and lithium-ion batteries.

Lead-acid battery

Lead-acid batteries because of its low price, rich source material, higher than the power, technology and manufacturing technology is mature, resource recovery rate higher comprehensive factors are widely studied and various electric car widely used in other countries. Electric bicycle as energy saving, convenient, fast, comfortable, cheap, zero emissions of personal transport, has been widely accepted and brought to the attention of the relevant state departments. By the state council development research center, the national development and reform commission, ministry of construction, ministry of science and technology and other ministries involved in the light electric vehicle industry development strategy research group put forward "light electric vehicle industry development strategy research" report. The national ownership electric bicycle has amounted to more than 30 million vehicles. More than 95% of the electric bicycle with valve-controlled lead-acid batteries.

The vast majority of the commercialized e-bike is the use of sealed lead-acid batteries, the use of no need to often add water, maintenance-free. Its main chemical reaction is: PbO2+2H2SO4+Pb charge, discharge 2PbSO4+2H2O

Lead-acid battery charging into lead sulfate of Yin and Yang of spongy lead fixed in the sulfuric acid content of the release to the electrolyte, respectively, to become spongy lead and lead oxide, sulfuric acid concentration in the electrolyte grows; Otherwise discharge lead oxide in the anode and the cathode plate of spongy lead react with sulfuric acid in the electrolyte into lead sulfate, and the concentration of sulfuric acid in the electrolyte coming down. When lack of lead-acid battery charging, Yin and Yang are two plate of lead sulfate not completely transformed into a spongy lead and lead oxide, if lack of charging for a long time, can cause lead sulfate crystallization, made the plate, the battery quality becomes worse; On the other hand, if the battery is overcharged, the amount of oxygen generated by the anode is greater than the adsorption capacity of the cathode, so that the internal pressure of the battery increases, causing gas to overflow, the electrolyte is reduced, and the active material may soften or fall off, and the battery life is greatly shortened.

Comprehensive performance has greatly improved

In the past 10 years, the comprehensive performance of valve-regulated lead batteries for electric bicycles has been greatly improved. Take the 6-DZM-10 battery as an example. In 1997, this type of battery has insufficient capacity, the 2h rate (5A) discharge capacity is less than 10Ah; the specific energy is low, the specific energy of 2h rate is less than 30Wh/kg; the life is short, and the cycle life of 100% discharge depth is only 50~ 60 times (before the capacity dropped to 8Ah; the same below), the service life is only 3~5 months.

By 2003, 2 h rate discharge capacity (5 a) 11 ~ 13 ah; 2 h rate than energy reached 33 ~ 36wh/kg; 100% depth of discharge of the cycle life of 250 ~ 300 times, the service life can reach more than 12 months. Electric bicycle with valve-controlled lead-acid battery problems solved basically.

Deep cycle life performance of this type of battery is new, breakthrough. Main show is: 2 h rate discharge (5 a) initial capacity of 14 ah;2 h rate than energy 38wh/kg; 100% depth of discharge cycle life of more than 400 times, sent out a total capacity of 4500 Ah, the corresponding total mileage of about 18000 km (with 4 km/Ah, the same below).The deep cycle life of more than 600 times, sent out a total capacity of 6151 ah, the corresponding total mileage of about 24600km.If the capacity is lower than 7 ah life ending flag, deep cycle life of 943 cycles, sent out a total capacity of 8710 ah, the corresponding total mileage of about 34800 km. If according to the deep cycle life of 250 times or out of a total capacity of 2250 ah, the corresponding total mileage of 9000 km of the battery pack can be used guarantee 1 year.

Attach importance to match with charger

In the practice of many years of use, the whole vehicle manufacturers and battery manufacturers of electric bicycles have gradually recognized the importance of matching between the battery and the electric drive system related equipment, especially the matching with the charger. Manufacturing quality is a prerequisite for battery quality, but it can only be used with its matching charger to achieve the superior performance of high-quality batteries, otherwise high-quality batteries cannot fully exert their potential superior performance.

Different manufacturer of battery in the formula, structure, acid concentration and other differences, the appropriate charging parameters are different. For example, in our study, we found that different manufacturer battery charge in the stage of constant pressure parameters can vary from 1.5 V to 2.0 V (36 V battery).Proper charging parameter basic requirements are: to ensure that the battery can be full of, not due to owe charging battery capacity of normal attenuation; And make sure the battery during the whole life will not caused by charging battery severe water loss and thermal runaway.

Pure electric vehicle lead-acid batteries

The open-type lead storage battery used in the early pure electric vehicles adopted the research results during the “8 · 5” planning period, and has achieved successful experience of 19 months (120,000 km). The key is to accumulate the control charging mode and depth of discharge. And timely hydration and other system matching work experience and meticulous maintenance experience. In recent years, four-wheeled miniature electric vehicles (including tour buses, patrol cars, golf carts, short-distance road vehicles, etc.) have developed rapidly, and most of the cars used are open lead batteries. The battery of the corresponding model is favored by the battery manufacturer.

The electric vehicle adopts a new valve-regulated sealed lead storage battery, and its performance is: 3h rate capacity 55Ah; 3h rate specific energy is 33Wh/kg and 84Wh/L; 75% discharge depth has a cycle life of more than 400 times. It is believed that the successful experience of valve-regulated lead batteries for electric bicycles can be extended to valve-regulated lead batteries for pure electric vehicles, and the performance will be further improved.

Hybrid electric vehicle lead-acid batteries

Hybrid electric vehicle is divided into three categories: basic now mild hybrid (namely the electric system is mainly used for starting and braking energy recycling, the promotion of the 42 v electrical system on all cars belong to this type), moderate hybrid (that is, the electric system is used for starting, braking energy recycling and driving, short), severe hybrid (i.e. electric system used for starting, braking energy recycling and relatively long distance driving, also known as the "plug-in").

Literature at home and abroad has been clear: in a mild hybrid electric car, valve-controlled lead-acid batteries have advantages, mainly because of its low cost, mature technology, reliable performance; Mild hybrid electric car with valve-controlled lead-acid batteries, ALABC (advanced lead-acid battery consortium) is organizing development, preparation and MH - Ni battery for a mild hybrid electric car market, has now launched and the vehicle test coiling bipolar ear batteries and TMF (metal film) battery; In the field of heavily mixed electric vehicles, lead batteries have lower specific energy and cannot meet the driving requirements of electric systems for longer distances.

Colloidal batteries are an improvement over conventional lead-acid batteries for liquid electrolytes. It adopts gelatinous electrolyte and has no free liquid inside. It has large electrolyte capacity, large heat capacity and strong heat dissipation ability in the same volume. It can avoid the thermal runaway phenomenon that is easy to be generated in general batteries. The electrolyte concentration is low and the corrosion of the plates is weak. The concentration is uniform and there is no acid stratification.

The page contains the contents of the machine translation.