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What Makes a Lithium-Ion Battery Explode?

To understand why lithium-ion batteries in some cases fall flat, you have to know what’s happening within. Inside each lithium battery, there are two terminals—the positively charged cathode and the negatively charged anode—isolated by a thin sheet of “microperferated” plastic that keeps the two terminals from touching. When you charge a lithium battery, lithium ions are pushed by electricity from the cathode, through the microperferations in the separator and an electrically conductive fluid, and to the anode. When the battery discharges, the reverse occurs with the lithium ions flowing out of the anode toward the cathode.

What Makes a Lithium-Ion Battery Explode?

The very thing that makes lithium-ion batteries so helpful is what also makes them burst into flames or explode. Lithium is extremely great at storing energy. When it is released as a trickle, it powers your device or cart for as long as it is required. When it is released all at once, the battery could explode or burst into flames.

Most lithium battery explosion and flames come down to a problem of short-circuiting. This happens when the plastic separator fails and lets the anode and cathode touch. Also, when those two come in contact, the battery begins to overheat.

There are various reasons that the separator can fail:

Several other factors can cause a lithium battery to explode.

Despite the fact that examining why battery at times fall flat paints a frightening picture, lithium batteries are a safe and experienced innovation. The fact that it is always news when a battery explodes out of the blue shows how uncommon an event those enormous failures are. Battery manufacturers set up a ton of safeguards to avoid battery failures, or if nothing else, mitigate the damage a failure can cause.

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