Lithium batteries are batteries that have lithium as an anode. They stand apart from other batteries in their high charge density (long life) and high cost per unit. Depending on the design and chemical compounds used, lithium cells can produce voltages from 1.5 V (comparable to a zinc–carbon or alkaline battery) to about 3.7 V. Disposable lithium batteries are contrasted with Lithium-ion and lithium polymer, which are rechargeable batteries, where ions move between the anode and the cathode, using an intercalated lithium compound or metallic lithium as the electrode material. Lithium batteries are widely used in products such as portable consumer electronic devices.

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