We will meet the phenomenon of battery overheating in life, such as cell phone battery overheating, car battery overheating, etc. Battery overheating will seriously affect the performance of the battery, and there is damage to the relevant lines of the fault, we need to understand the causes of overheating battery and the battery after the heat of the measures taken to maximize the safety of personal life and health and the service life of the battery.

1. lithium battery overheating

1.1 Reasons for overheating of lithium batteries

1.1.1 High ambient temperature: lithium batteries are very sensitive to the surrounding environment, high-temperature environment will lead to overheating of the battery, will increase the use of the process of heat generated within the battery. When charging to ensure that the ambient temperature can not be too high, charging lithium battery itself will produce heat, the surrounding temperature is even higher, will make the heat accumulation.

1.1.2 Overcharging: overcharging will lead to increased pressure and heat inside the lithium battery, and the battery will overheat.

1.1.3 Charging equipment failure: the use of incompatible or poor quality chargers will lead to lithium battery heating, if you use a charger that does not match the battery will make the lithium battery can not be charged or overloaded, lithium battery overheating, in serious cases, a fire may occur. Note: Lithium batteries need to be charged with a special charger.

1.1.4 High-current discharge: electric vehicles or high-performance equipment requires a large amount of power, it will be high-current discharge, which will generate a lot of heat.

1.1.5 Lithium Battery Failure: Lithium batteries may have short circuits or other defects, and will overheat during normal use. If the lithium battery is used for a long time, the internal components of the battery will also be damaged, the resistance will increase, and it will heat up when used.

1.2 Effects of overheating of lithium batteries

1.2.1 Shortened life: lithium battery overheating for a long time will greatly shorten the life of the battery, the heat will accelerate the aging of the internal components of the battery, resulting in severe wear and tear, the battery died.

1.2.2 Reduced capacity of lithium batteries: frequent overheating of the battery will reduce the ability of the battery to save power, and the total heat of the lithium battery will be reduced.

1.2.3 Expansion of lithium batteries: Expansion of batteries occurs when they are overheated, mainly due to the accumulation of gases inside the battery as a result of damage to the internal components of the battery.

1.2.4 Performance degradation: overheating of lithium batteries can cause performance degradation, such as reduced power output and instability of lithium batteries.

1.2.5 Fire Hazard: If the heat keeps going, it will make the Li-ion battery undergo thermal runaway, and the temperature inside the battery will keep rising, which will lead to a fire or explosion of the battery, which will seriously affect the life and health safety of individuals and the normal equipment.

1.3 Prevent lithium battery overheating treatment methods

1.3.1 Use a special charger for lithium batteries: cheap or fake chargers can damage lithium batteries and increase the risk of heating.

1.3.2 Object inspection: Check the appearance of the lithium battery frequently to see if there is any dent or protrusion phenomenon, crack or craze phenomenon, foreign objects or pollution, and if there is any phenomenon that leads to abnormal heating, send it to the maintenance store for repair.

1.3.3 Avoid extreme temperatures: keep the lithium battery away from direct sunlight and high temperature environment, the lithium battery will not overheat because of the abnormal external environment.

1.3.4 Ensure ventilation: when charging lithium batteries to ensure that the surrounding ventilation is good, the battery can be normal heat dissipation.

1.3.5 Reasonable storage: When the lithium battery is not in use, the lithium battery can be stored in a dry, warm place, it is best to use a battery box to maximize the protection of lithium battery.

2. What happens when solar cells overheat?

The possibility of solar battery overheating is low, because the installation of solar batteries in the installation of solar batteries have been considered the battery installation environment, and solar batteries are generally used lithium batteries, battery management system inside the battery, you can view the battery’s operating conditions through intelligent devices to avoid overheating or other failures of the battery. But there are still some batteries are lead-acid batteries will appear the following situations:

2.1 Gas Emission: Solar battery overheating will produce hydrogen and oxygen, these gases are highly combustible, and fire will occur when it gets hot.

2.2 Short circuit: Battery overheating will lead to a short circuit, because high temperature battery internal heat will be generated, so that the expansion of the battery, the internal heat is very large will melt the battery shell, which will lead to a short circuit. And when the positive and negative terminals of the battery are connected together when the circuit ends will produce more heat, there may be a risk of explosion.

3. What happens when a cell phone battery overheats?

3.1 Harming the battery: overheating the cell phone battery will reduce the life of the battery.

3.2 Harming the cell phone: An overheated battery can cause the cell phone to suddenly shut down or fail to restart.

3.3 Phone system disorder: it will cause the phone to open apps indiscriminately, flashback, etc.

3.4 Damage to the phone hardware: If the phone is extremely overheated, the phone processor may melt and seriously explode, harming the life and health of individuals.

Conclusion:

Whether it is a cell phone, automobile, solar energy system and other applications, will use the battery, the battery is very sensitive to changes in temperature, when the battery is at extreme temperatures, the battery’s efficiency, performance, service life, etc. will be reduced, and in serious cases, irreversible damage will occur, resulting in short-circuit batteries, fires, explosions, and other accidents, threatening the life, health and safety of individuals.

So we have to avoid problems related to overheating of batteries, to avoid batteries at extreme temperatures, avoid overcharging and discharging, proper storage of batteries, etc., so that the battery is in the best working condition, so that each of us can efficiently utilize the battery.