Photo: depositphotos.com
Any careless movement can cause damage to the case and a sudden release of energy. But the disaster can be avoided.
Sometimes gadget batteries can explode or catch fire, causing significant harm to the user. Experts from the American site iFixit, which specializes in repairing equipment, conducted experiments and found out what problems lead to disastrous results.
Speaking of which in shape Focus.
Please note that in the modern world, batteries are used in many everyday devices, such as laptops, smartphones, smart watches, wireless speakers, power banks, etc. Especially often people resort to them during a power outage, but not everyone realizes the danger that threatens in the event of the slightest damage.
Li-ion batteries consist of many layers of insulating material coated with thin metals and chemical electrolytes. Under physical impact, the layers touch each other, resulting in a short circuit, and the stored energy begins to be released sharply, heating up the entire structure.
Battery charge affects how much damage there will be if the battery fails – the more electricity stored, the higher the ignition temperature. Before removing the battery, it is recommended to discharge it to at least 25%, otherwise the case can be damaged by careless movement and cause an explosive reaction. Batteries pose a threat even when disconnected and separated from devices.
Experts showed how this happens using the example of iPhone 12 Pro Max smartphones. During the first experiment, they hit a flat battery with a metal spatula, which only smoked and gave off a few sparks in response. But a fully charged battery immediately caught fire after the impact.
The researchers also noted that the extent of the fire strongly depends on the size of the battery: the bigger it is, the more dangerous. They took a large battery and fired it with nails from a construction gun, turning it into real fire. The device exploded and caught fire so badly that I had to use a fire extinguisher.
Experts have urged never to extract lithium-ion batteries with metal tools, because it is very easy to damage the shell: it is better to use safer plastic ones. If the battery case is damaged for some reason, in no case should it be charged and used, even if no reaction has occurred – an explosion or fire will certainly occur later.
As reported by Cursor, NASA has created a rechargeable battery with ultra-fast charging.
The cursor also informed him new charging method can extend battery life.
