The efficiency of lithium-ion and sodium-ion batteries is above ** percent, meaning that ** percent or less of the energy stored in the device is lost. By comparison, the round trip efficiency of flow batteries is ** percent or lower. Lithium-ion batteries also account for the largest specific energy among battery energy storage technologies, indicating the ratio between the energy contained in a battery and its weight.
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The Faraday Institution. (September 14, 2023). Round trip efficiency of battery energy systems worldwide in 2023, by technology (in percentage) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/1423012/efficiency-of-battery-energy-systems/
The Faraday Institution. "Round trip efficiency of battery energy systems worldwide in 2023, by technology (in percentage)." Chart. September 14, 2023. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/1423012/efficiency-of-battery-energy-systems/
The Faraday Institution. (2023). Round trip efficiency of battery energy systems worldwide in 2023, by technology (in percentage). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/1423012/efficiency-of-battery-energy-systems/
The Faraday Institution. "Round Trip Efficiency of Battery Energy Systems Worldwide in 2023, by Technology (in Percentage)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 14 Sep 2023, /statistics/1423012/efficiency-of-battery-energy-systems/
The Faraday Institution, Round trip efficiency of battery energy systems worldwide in 2023, by technology (in percentage) ÌÇÐÄÆƽâ°æ, /statistics/1423012/efficiency-of-battery-energy-systems/ (last visited July 20, 2026)
Round trip efficiency of battery energy systems worldwide in 2023, by technology (in percentage) [Graph], The Faraday Institution, September 14, 2023. [Online]. Available: /statistics/1423012/efficiency-of-battery-energy-systems/
