Volumetric energy density refers to the amount of energy that can be contained within a given volume. Increasing the volumetric energy density of batteries allows electric vehicles (EVs) to travel further without increasing the size of the battery pack. Conversely, it can allow an EV to travel the same distance with a smaller battery pack, thus saving space, weight, and manufacturing costs. Given the enormous benefit of increasing the energy density of batteries for EVs, there has been heavy investment in battery development by the Department of Energy and private industry that has yielded impressive gains. In 2008, lithium-ion batteries had a volumetric energy density of 55 watt-hours per liter; by 2020, that had increased to 450 watt-hours per liter.
Courtesy of Energy.gov
Tracking Lithium Provides Clues To Better Batteries: Clues to Better Batteries — X-ray technique reveals irregularities and dead spots arise due to incomplete lithium stripping from anode during battery discharge.
Duration Of Utility-Scale Batteries Depends On How They’re Used: According to planned installations compiled in our Preliminary Monthly Electric Generator Inventory, we expect battery storage to increase by 10 gigawatts (GW) by the end of 2023. More than 60% of this battery capacity is intended to be paired with solar power plants.
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