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Lithium-ion battery

From Simple English Wikipedia, the free encyclopedia
(Redirected from Lithium-ion polymer battery)
Lithium-ion battery for laptop

A lithium-ion battery is a lightweight, high-power battery used in computers and mobile phones. It comes in several shapes, although a flat rectangle is most common. It is lighter than the nickel cadmium battery and the nickel metal-hydride battery. That makes it useful for devices that should be lightweight. Lithium-ion batteries work by the movement of lithium ions through a membrane (thin sheet that allows some substances to pass through). They are different from lithium batteries.[1] Lithium batteries contain lithium metal and are not rechargeable (primary cells). Lithium-ion batteries[2] do not contain lithium metal (only lithium compounds) and are rechargeable (secondary cells). They also do not last forever. Traditional lithium-ion batteries will have an average of 600 charge cycles. Some newer versions such as lithium iron phosphate and lithium titanate can last for 3000 cycles or more.

Safety issues

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Lithium-ion batteries can be very dangerous. They can catch fire or explode if they are punctured, overcharged, or short-circuited, or if there is a manufacturing defect. In a multi-cell battery pack, the fire can spread from one cell to another, consuming the entire pack. The fire cannot be put out with a fire extinguisher or water. Flaming electrolyte can be ejected from the battery, setting fire to nearby combustible material. Many products have been recalled due to defective lithium-ion batteries.

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  1. "LiPo battery". www.pdbattery.com. Retrieved 11 April 2016.
  2. "lithium ion battery". lithiumbatterychina.com. Archived from the original on 19 February 2022.