Lithium batteries are incredibly popular these days. Lithium is the lightest of all metals, has the greatest electrochemical potential and provides the largest specific energy per weight.
Because lithium batteries can have a variety of positive and negative electrode materials, the energy density and voltage vary accordingly.
Life of a lithium battery is typically defined as the number of full charge-discharge cycles to reach a failure threshold in terms of capacity loss or impedance rise. Manufacturers’ datasheet typically uses the word “cycle life” to specify lifespan in terms of the number of cycles to reach 80% of the rated battery capacity.
Battery cycle life is affected by many different stress factors including temperature, discharge current, charge current, and state of charge ranges.
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