Repair method of colloid lead acid battery?

　　Author ：Iflowpower – Portable Power Station Supplier

The colloidal battery is a new generation of valve-controlled battery, which is already sealed at the factory, it is not easy to add electrolyte! If it is added, it will not form a colloid so that the electrolyte will leak in use! Battery repair instrument should repair it. The battery repair instrument should be a problem that the battery capacity caused by an negative electrode irreversible sulfate caused by overcharge or overlapping during use. When fixing, the electrolyte concentration is lowered, and the smaller current charge and discharge is used.

After repeating several times, then re-adjust the concentration and height of the electrolyte. The colloidal battery electrolyte is in colloid, it is not easy to lower its concentration. 1.

Charging method: Generally, a light storage battery, can recover normal charging. Generally, the larger the discharge current, the shorter the battery life; the deeper the discharge depth, the shorter the life of the battery. From theoretical battery, try to avoid deep discharge, you should be shallow.

2, hydrotherapy: a "water therapy" charge and discharge. (1) 0.5 ml of the 500 ml of drip bottle capacity with the hospital with a 0.

5 ml of 0.5 ml of the pure concentrated sulfate, which is a dilute sulfate electrolyte having a density of approximately 1.050 as hydrating.

(2) Open the battery on the cover (must be careful to avoid damage), rotate the single-handed control valve (or pick the rubber cover), add 5 ml of the electricity of 1.050 of 1.050 -15 ml, injecting the electrolyte It is preferred to put the battery for more than 10 hours, so that the replenishing liquid is soaked into the separator to just see the flow electrolyte appear (more clearly, more clearly by flashlight) or the battery is flip 90 degrees, so that the small hole As side, excess electrolyte overflow, then fell back).

(3) Connect the battery and tester, press the Tester "Battery Repair" function button to repair. The tester automatically enters three six-hour debris repair, automatically transfer to the working mode "3" after three hours, heat-charged - charging, charging current is 3A, the discharge current is 5A, the tester automatically display discharge Capacity and time, very intuitive. Each record, repeated three, four times until the capacity is no longer rising.

3. Battery parallelism: If the battery temperature rise is rapid during repair, the charging current should be reduced. At this time, the two batteries can be connected in parallel, and the charge and discharge of electric current is original 1/2.

1/2 (Ignore the internal resistance difference), the effect is also very good. 4. Battery series repair method: This method is used when the single battery nominal voltage is below 12V.

For example, on the market, charging emergency lights often use 6V4AH, as well as 6V7AH battery, and the tester single output is 12V. 5. Output joint charge increase method: If the battery capacity is repaired, if some cars are 100AH ​​batteries, sometimes it is necessary to increase the charging current, at which time the two or more outputs of the tester can be repaired in parallel.

Battery to enhance charging current. The colloidal battery is a new generation of valve-controlled battery, which is already sealed at the factory, it is not easy to add electrolyte! If it is added, it will not form a colloid so that the electrolyte will leak in use! Battery repair instrument should repair it. The battery repair instrument should be a problem that the battery capacity caused by an negative electrode irreversible sulfate caused by overcharge or overlapping during use.

When fixing, the electrolyte concentration is lowered, and the smaller current charge and discharge is used. . .

After repeating several times, then re-adjust the concentration and height of the electrolyte. The colloidal battery electrolyte is in colloid, it is not easy to lower its concentration. I can't fix it! Personally I suggest you see that the battery is not within the warranty, you can find the battery and ask if you can change! The electric vehicle battery is a poor liquid battery.

The electrolyte inside the colloidal battery is paste, and the internal inside is not seen that the electrolyte is adsorbed into the separator. It is difficult to completely replace the electrolyte, mainly What replacement is needed to replace the electrolyte, because the electrolyte purity used by the lean fluid battery is very high, it is much higher than the outer or high purity. Electric car electrolyte is generally a dilute sulfate capacity of 1.

30-1.34. If you want to match it yourself, you will have a specific gravity while dilute sulfuric acid.

The addition of electricity is usually in 1.37 or whether the battery repair is feasible to be based on the battery itself. It is determined because the battery damage is divided into many kinds of hardware damage and software damage or life end and other reasons.

Most batteries can be repaired. Some batteries can be repaired first. condition.

Want to understand how to fix it to understand its failure mode: 1. The failure mode of the lead-acid battery is different from the type, manufacturing conditions, methods of use, and ultimately lead to different reasons for the failure of the battery. Incident, the failure of the lead-acid battery has several situations: 1.

The corrosion modification of the positive electrode plate is currently three types of alloys used: traditional lead antimony alloys, and antimony content at 4% - 7% mass fraction Low oligo or ultra-low bismuth alloy, the content of antimony is 2% mass fraction or less than 1% mass fraction, tin, copper, cadmium, sulfur and other variant crystal; lead calcium series, actual lead-calcium-tin - Aluminum quadruple alloy, calcium content at 0.06% - 0.1% mass fraction.

The above-mentioned positive plate grid is cast in the battery charging process to be oxidized into a lead and neutral lead in the battery, and finally leads to the action of supporting the active substance and failing the battery; or due to the formation of the nestal corrosion layer The alloy produces stress, so that the board gate is largely deformed, and this deformation will make the polar for overall damage, the active material is poor contact with the grid, or short circuit at the bus stop. 2, the positive plate active substance is falling off, softened. In addition to the reactive substances of the rending, the rending and discharge is repeated, the combination between the lead particles is relaxed, softened, soften from the grid.

A series of factors such as manufacturing, equipped tight and charge and discharge conditions, etc. 3, the irreversible sulfuricate battery is over-discharge and long-term storage in the discharge state, the negative electrode will form a coarse, difficult to accept the charging of lead crystals, this phenomenon is referred to as irreversible sulfate. Slight irreversible sulfate, can still be recovered, when it is serious, then the electrode is invalid, charged.

4. When the capacity is too early, when low bismuth or lead calcium is a grid alloy, the battery is suddenly decreased in the initial stage of the battery, so that the battery is invalid. 5.

The severe accumulation of the severe accumulation of the active material on the active material is partially transferred to the surface of the negative plate active substance, since the H + is reduced by the hyper electrodes of the lead than the lower electrodes of the lead. 200mV, Thus, when the accumulation of antimony is reduced, most current is used for water decomposition, the battery cannot be normalized and thus failure. The antirectylation content of the lead-acid battery negative substance of only 2.

30V and exposed to a lead-acid battery, found that the surface layer of the negative electrode active material, the content of the antimony reached 0.12% - 0.19% mass fraction.

For some batteries, such as with a battery, there is a certain limit on the battery. Testing the hydrogen-proof cellular active substance test, the average ruthenium content reached 0.4% mass fraction.

6, heat loss for less maintenance battery, requires no charging voltage to not exceed single 2.4V. In actual use, for example, in the car, the pressure regulating device may be out of control, the charging voltage is too high, so that the charging current is too large, the heat generated will increase the temperature of the battery electrolyte, resulting in a decrease in the internal resistance of the battery; Strengthens charging current.

The temperature rise and current of the battery are booming each other, ultimately uncontrollable, deform the battery, cracking. Although the thermal out of control is not the failure pattern of lead-acid batteries, it is not uncommon. Attention should be paid to the phenomenon of high charging voltage, and battery heat.

7, the corrosion of the negative electrode bush, there is no corrosion problem in the negative electrode grid and the bus row, but in the valve-controlled sealing battery, when the oxygen circulation is established, the upper space of the battery is substantially full of oxygen, how much is the bus bar The electrolyte in the diaphragm climbs to the bus along the ear. The alloy of the bus bar will be oxidized, and the lead in sulfate is further formed. If the bus bar alloy is selected, the flow of slags and the slit is placed, and the corrosion will deepen along these gaps, resulting in venting, negative plate failure.

8. The diaphragm perforation causes a short circuit, such as a PP (polypropylene) diaphragm with a large pore size, and the PP fuse is displaced during use, resulting in a large hole, the active material can pass through the charge and discharge process. Macher, causing micro short circuit to fail the battery.

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