LIthium Ion Battery

A lithium-ion battery or Li-ion battery is a type of rechargeable battery. Lithium-ion batteries are commonly used for portable electronics and electric vehicles and are growing in popularity for military applications.

In the batteries, lithium ions move from the negative electrode through an electrolyte to the positive electrode during discharge, and back when charging. Li-ion batteries use an intercalated lithium compound as the material at the positive electrode and typically graphite at the negative electrode.

There are two types of lithium battery cells in common use:

Primary or non-rechargeable metallic lithium cells

These cells are constructed with metallic lithium. The metallic lithium in a non-rechargeable primarylithium battery is a combustible alkali metal that self-ignites at 352o F, and when exposed to water or seawater reacts exothermically and releases hydrogen.

Secondary or rechargeable lithium ion cells

Rechargeable secondary cells utilize lithium ions that are intercalated into graphite, lithium metal oxides and/or lithium salts. There is no metallic lithium in a lithium ion battery.

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