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Stretchable and Rechargeable Lithium Ion Batteries [VIDEO]

Researchers announced the development of a new lithium ion battery, stretchable up to 300% of the original size. The device can also be recharged wirelessly, making it suitable for biomedical applications, in the skin or biological tissues.
Lithium Ion Batteries

Lithium ion (Li+) batteries are a type of rechargeable battery in which the battery generates electrical energy by the movement of Li+ within the battery itself. Lithium is present in the form of a lithium salt, such as lithium cobalt oxide LiCoO2. The ions migrate from the negative electrode to the positive electrode, generating an electric current. If all ions migrate to the positive electrode, the battery has no charge left. However, it is possible to reverse this migration by inducing a movement of the ions in the opposite direction, from the positive electrode to the negative electrode, thereby recharging the battery.
Very Common Batteries

Li+ batteries are commonly used in electronic devices because they are lighter than other rechargeable batteries and may have higher charge density. They also lose their charge very slowly – less than 10% of the charge is lost in a month, approximately one-third less than the charge lost with other batteries, including nickel hydride. Lithium ion batteries are also rechargeable – for several cycles.

The main disadvantages of these batteries are their fragility and temperature sensitivity, so you should store them in safe and air-conditioned locations. There are also some safety issues associated with Li+ batteries due to the high reactivity of the lithium ion, so some decodescience.commay apply if you’re trying to transport large quantities of these batteries.


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