Flüssigkeitsgekühlter Lithiumbatterie-Energiespeicher schematisches Diagramm

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What are lithium-ion batteries?

Lithium-ion batteries (LIBs) power virtually all modern portable devices and electric vehicles, and their ubiquity continues to grow. With increasing applications, however, come increasing challenges, especially when operating conditions deviate from room temperature.

How does temperature affect low-temperature lithium ion battery performance?

While the processes that limit low-temperature LIB performance are myriad, their effect is commonly the same: capacity loss. The usable capacity of a fresh lithium–ion cell between predefined voltage limits generally decreases with decreasing temperature – especially below −20 °C – sometimes to less than 25% of its room-temperature value.

How does temperature affect the capacity of a lithium ion cell?

The usable capacity of a fresh lithium–ion cell between predefined voltage limits generally decreases with decreasing temperature – especially below −20 °C – sometimes to less than 25% of its room-temperature value. This capacity loss is usually reversible when the temperature is raised back to normal conditions.