The gravimetric energy density (or specific energy) of different battery storage systems ranges from an average of over *** watt-hours per kilogram for lithium-ion batteries to less than ** watt-hours per kilogram for flow batteries. Solid-state batteries, using a solid state electrolyte solution, have one of the largest specific energies among lithium-ion batteries.
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The Faraday Institution. (September 14, 2023). Gravimetric energy density of battery energy systems worldwide in 2023, by technology (in watt-hours per kilogram) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 24, 2026, from /statistics/1422973/specific-energy-of-battery-energy-systems/
The Faraday Institution. "Gravimetric energy density of battery energy systems worldwide in 2023, by technology (in watt-hours per kilogram)." Chart. September 14, 2023. ÌÇÐÄÆƽâ°æ. Accessed July 24, 2026. /statistics/1422973/specific-energy-of-battery-energy-systems/
The Faraday Institution. (2023). Gravimetric energy density of battery energy systems worldwide in 2023, by technology (in watt-hours per kilogram). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 24, 2026. /statistics/1422973/specific-energy-of-battery-energy-systems/
The Faraday Institution. "Gravimetric Energy Density of Battery Energy Systems Worldwide in 2023, by Technology (in Watt-hours per Kilogram)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 14 Sep 2023, /statistics/1422973/specific-energy-of-battery-energy-systems/
The Faraday Institution, Gravimetric energy density of battery energy systems worldwide in 2023, by technology (in watt-hours per kilogram) ÌÇÐÄÆƽâ°æ, /statistics/1422973/specific-energy-of-battery-energy-systems/ (last visited July 24, 2026)
Gravimetric energy density of battery energy systems worldwide in 2023, by technology (in watt-hours per kilogram) [Graph], The Faraday Institution, September 14, 2023. [Online]. Available: /statistics/1422973/specific-energy-of-battery-energy-systems/
