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Lithium-ion batteries, surely made of elements mined and/or processed in China. Photo from NASA (public domain).

Batteries

Volumetric Energy Density Of Lithium-ion Batteries Increased By 8+ Times Between 2008 & 2020

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.

Energy Density of Lithium-ion Battery Packs, 2008-2020

Source: Nitin Muralidharan, Ethan C. Self, Marm Dixit, Zhijia Du, Rachid Essehli, Ruhul Amin, Jagjit Nanda, Ilias Belharouak, Advanced Energy Materials, Next-Generation Cobalt-Free Cathodes – A Prospective Solution to the Battery Industry’s Cobalt Problem, January 2022.

Courtesy of Energy.gov

Related Stories:

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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