Reasons and prevention of batteries and explosions!

2022/04/08

  Author :Iflowpower – Portable Power Station Supplier

Battery drum causes 1, ventilation hole clogging, such as the vent hole clogging or unlessed, in the absence of too long or high charging time, which will gradually accumulate, resulting in the pressure of the battery shell The bigger the bigger, and finally leads the battery to rise. 2, the charging time is too long, and when the battery charging current is too large or the charging time will have a lot of gas. In addition, the current is too large or the charging time will also cause the electrolytic liquid temperature to increase rapidly, and this is easy to cause the battery to rise.

3, the battery polar plate is vulcanized, such as vulcanization of the polar plate of the battery, then in the charging process, the single voltage and the electrolyte temperature will rise rapidly, the appearance of the bubble is earlier, and the reaction is dramatic, it is easy to cause this time. Battery tumble. 4, the continuous start start motor time is too long when the motor is started, the battery needs to supply a large current to the motor in a very short period of time, and the large start current will inevitably cause severe chemical reactions in the internal storage battery, and will accompany the gas When the launch motor continues to use too long, it will exacerbate the appearance of the gas, which increases the possibility of battery cracking.

5, the bundles of the battery inner plate and polar pillar and the bus stop are not strong. When the bundle of the bundles of the battery is not firm, if the high current discharges, the welding is too fine or the contact is not in contact. Inc.

causes fire, ablation, this will appear sparks, ignite the hydrogen oxygen mixture of the battery, resulting in the battery explosion. 6, the electrolyte viscosity is large, such as the electrolytic solution viscosity is large, then it is easy to cause slowness of the penetrating polar pore, which will increase the internal resistance, so that the voltage drop in the inner block in the discharge increases. This will cause the electrolyte temperature rise rapidly, and there is a large amount of gas, so that the gas pressure inside the battery increases, resulting in the battery drums.

7, the amount of electrolyte is too little to believe everyone understands that the battery will cause the electrolyte or distilled water after using a period of time. After the electrolyte is reduced, the charge over charge will occur, and it will even cause an explosion. 8.

The charger is damaged when the charger is damaged or the generator on the engine is damaged, which is likely to cause a drastling reaction in the battery, thereby appearing a large amount of gases, but causing battery drums. How to prevent battery drums rose above what causes the battery can cause the battery to grow up. So how do we prevent battery boosts in daily work? Let's take a brief talk about it.

1, control the voltage, current. Said above, too large voltage or current is easy to cause the battery to be rising, so control the voltage, current. 2, try to control the charging time, do not let the charging time too long, prevent over charge.

3. Use a better charger or frequently check the generator on the engine. Once the problem is found, it is observed or replaced, preventing the battery to rise.

4, during the charging process, to ensure that each of the terminals is firm, because the wiring point is loose, there will be sparks, which has caused hidden dangers to the battery. 5, ventilation hole guarantee timely smooth. In normal maintenance, clean up the impurities around the battery in a timely manner.

6, check whether the battery housing has cracks, whether the electrolyte leaks. Because the electrolyte is leakage, it may penetrate into the cable or circuit, thereby causing connectivity, spark. 7.

Timely exclude internal short circuit and electrode plate vulcanization in the battery. Spark in the internal short circuit in the battery, thereby detonating the hydrogen oxygen mixing gas, and the electrode plate vulcanization will cause a large amount of gas inside the battery. Therefore, usually we should check if there is a short circuit inside the battery, whether there is a vulcanization.

8. It is forbidden to fire on the positive and negative pillars of the battery such as cables such as cables, which is easy to cause explosion of the aerobic hydroxide gas, and severe people will even harm personal safety. 9.

When maintaining electric equipment, the flammable gas inside the battery should be excluded. 10. Timely check the amount and density of electrolytic liquid.

This will protect the battery to prevent battery drums from. 11. When starting the engine, try to prevent long-term continuous start.

Three reasons for exploding: 1. The battery case exploded by the battery shell exploded by the lead-acid battery works. In particular, the charging is overcharged, and the water is decomposed into hydrogen and oxygen, short circuit, severe vulcanization.

As well, when charging, the electrolyte temperature has risen sharply, which will evaporate the water. At this time, if the vent hole cover is blocked, the pressure inside the battery will rise because the gas is too late to overflow, and the pressure inside the battery will rise, first causing the battery cell deformation, This is a physical process when the internal pressure reaches a certain pressure. When the internal pressure of the battery is higher than 0.

25 MPa, the battery is burst, and the burst position is located at the angle of the trough hot air bonding or stress concentration. 2. Hydrogen is meticulous, and the explosive limit of the battery explosion H2 and O2 mixed gas formed by H2 is H2 4% -96%, H2 and air mixed gas of H2 and air is a 4% -74 of the mixed gas volume.

%. If 80% of the charge amount is used in electrolytic water, the H2 content inside the battery is greater than the explosion range. When the amount of hydrogen in the battery or the amount of hydrogen is accumulated to the explosion limit, it will form an explosion, which is an explosion.

Chemical reaction. Studies have found that the explosion of the battery belongs to the branched explosion reaction. There are too many such explosions that occur in the case of overcharge, if there is a spots in the internal column, wearing welding, etc.

A qualified battery does not have a self-heating explosion in normal use conditions. When the battery charging voltage gasoline car is higher than 14.4V, the diesel car is higher than 28.

8V, and the explosion may occur under the conditions of the simultaneous existence. Through the vehicle inspection of the battery explosion, it is found that most of the voltage regulators have defects, and the battery is in a serious overcharge. 3.

Since the battery exhaust hole is blocked, the battery first bursts, burst causing the battery vibration, the pole pillar is not prison, thereby forming an explosion. Preventing battery explosions: 1, control charging, but charging to reduce gas precipitation. The fire is strictly forbidden to open the fire, keep ventilation.

2, in charge, the terminals should be reliable, not because the spark appears. 3, use low pressure constant pressure charging in use, less departure. 4, prevent battery shell crack, electrolyte osmosis.

5. When the parking is removed, the battery should be detached after parking, and then remove the negative pole line, then remove the negative pole line, then remove the positive pole line, the battery is in the opposite order, otherwise it is possible to show the explosion of the battery. 6, keep the battery cover dry, clean.

7, often check the battery small Selide exhaust hole, keep the exhaust hole smooth. 8, control the liquid level of the battery to ensure that the liquid level is within the specified range, the electrolyte must not overflow. 9.

The battery terminal connecting wire should have a lower contact resistance and a large contact pressure, and apply Vaseline to the connection at the connection to isolate the exterior environment, prevent the emergence of the fire to enter the battery, and ignite the combustible gas. .

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