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Once seen as simple power sources, batteries today stand at the heart of the world’s clean-energy transformation as one of the fastest-growing technologies shaping our future.

Among battery types, lithium-ion batteries are the preferred choice to power everything from mobile phones to electric vehicles (EVs).

Li-ion batteries first appeared commercially in the early 1990s, but demand for them grew exponentially in the last decade, going from just 0.5 gigawatt-hours (GWh) in 2010 to about 526 GWh a decade later.

A nearly 90% decline in lithium-ion battery costs, from approximately $1,400 per kWh in 2010 to $140 per kWh in 2023, combined with advances in energy density and cycle life, has reinforced their dominance in electric vehicle and energy storage applications.

A big problem with rechargeable batteries like lithium-ion cells, however, is that they do not like the cold.

Miksi akut eivät toimi kylmässä (ja miten insinöörit korjaavat sen)

Batteries perform poorly in cold conditions. This is because of their internal electrochemical reactions that slow down at subzero temperatures.