What happens when a lithium-ion battery is punctured?

1. Lithium-ion batteries are at risk of exploding when punctured. Lithium-ion batteries have a complex internal structure containing flammable electrolyte and other chemical components. If punctured, it may lead to short circuit and electrolyte leakage inside the battery, triggering a chemical reaction that releases heat, thus causing an explosion, which is highly susceptible to fire, and may even damage neighboring batteries, triggering a chain reaction.

2. Release of harmful substances. After the lithium-ion battery is punctured, its internal electrolyte and its chemical substances combined with each other and reacted or combined with the air, may release other harmful substances, there is a potential danger.

In summary, lithium-ion batteries are still very dangerous when punctured, so we should pay extra attention when using them to avoid situations that may lead to lithium-ion breakage. For example, when lithium-ion batteries are found to be swollen and ruptured, they should be replaced in a timely manner and handled properly.

Can I still use a lithium-ion battery after it is damaged?

The safety of lithium-ion batteries is compromised when they have a bulge, not to mention a punctured battery.

After bulging, the internal diaphragm of the battery may rupture, leading to short circuit inside the battery, which will cause damage to the battery and reduce its safety performance, so it cannot be used further and should be replaced in time.

What should I do after a lithium-ion battery is punctured?

1. Don’t touch the battery with your hands: after the battery is ruptured, it is very easy to produce harmful substances inside, which may be harmful to the human body and even damage our skin.

2. Pay attention to ventilation: Lithium-ion batteries may release harmful gases after rupture, which is very easy to cause harm to the human body, so it should be ventilated in time to release and distribute harmful gases.

3. Treatment: Due to the degree of rupture of lithium-ion batteries, lithium-ion batteries with different specifications, the treatment is also different.

3.1 First of all, you need to check the equipment as well as the battery itself disposal instructions, if not, then take the following methods.

3.2 If the pouch or square lithium-ion battery is punctured, you need to immediately flee the scene, because this battery is very easy to catch fire, it is best to notify the fire department. If after 24 hours there is no fire or a small fire is under control, then you can remove the battery from the electrical system.

3.3 If you have accidentally punctured a cylindrical battery, you should be glad that this is not a particularly serious situation. You need to remove the punctured lithium-ion battery from the electrical system as soon as possible and place it where the fire will not spread. And ask for advice like your local fire department.

3.4 For smaller ruptured batteries, put them in a scrap battery box or a green power supply;

For larger ruptured batteries they need to be taken to a specialist disposal facility for safe disposal;

Which types of lithium-ion batteries are puncture resistant?

In order to avoid puncture of lithium-ion batteries, it is important to choose lithium-ion batteries that are puncture resistant. The degree of puncture resistance varies from one Li-ion battery to another, and the chemical composition and structure used within it determines the degree of puncture resistance.

1. As of today, lithium iron phosphate is considered one of the safest batteries. This lithium-ion battery uses the safest chemistry inside, so its low internal resistance and high thermal runaway threshold make it relatively safe.

2. And the structure of lithium-ion batteries can often determine their puncture resistance as well. Lithium iron phosphate batteries have the following two structures.

2.1 Soft pack lithium-ion battery: Its most likely to be punctured. Since the anode, cathode and other battery components of this type of battery are placed in a flexible foil pouch, it does not have more puncture protection.

2.2 Circular lithium-ion battery: It is similar to our TV remote control battery. Its anode and cathode are in the form of thin sheets with a hard shell-like coating on the outside, as well as its unique shape, making it more difficult to puncture and safer than the other two types of batteries.

Based on experience, the possibility of lithium-ion batteries being punctured always exists, so they should be stored carefully in our daily use to avoid damage to lithium-ion batteries, and also to prepare for emergency situations when lithium-ion batteries are punctured.

Since lithium-ion batteries are so harmful when punctured, is it worthwhile for us to continue to use them?

The answer is yes. Any battery has such a danger, and the probability of it happening is still very low. Compared to the dangers of lithium-ion batteries, the convenience they bring to us is extremely attractive. As long as we take precautions and are prepared to deal with them, all the dangers will be minimized.