lithium-ion battery

noun

lith·​i·​um-ion battery ˈli-thē-əm-ˈī-ən- How to pronounce lithium-ion battery (audio)
-ˈī-ˌän-
: a rechargeable battery that uses lithium ions as the primary component of its electrolyte

Note: Lithium-ion batteries are common in portable electronic devices such as cell phones and laptop computers.

Examples of lithium-ion battery in a Sentence

Recent Examples on the Web
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Underneath the shell is an 800-volt electrical architecture, which allows the 48-volt lithium-ion battery to recoup roughly 200 miles in 10 minutes. Morgan Korn, ABC News, 31 Dec. 2025 In laboratory tests, the MIT sodium-air fuel cell prototype delivered more than five times as much energy per kilogram as the lithium-ion batteries currently used in electric cars. The Week Uk, TheWeek, 30 Dec. 2025 The bus now holds 100 gallons of water, 1,800 amp-hours of lithium-ion batteries and 3,300 watts of solar power — enough to run air conditioning, appliances and electronics without ever plugging in. Jordan Greene, PEOPLE, 29 Dec. 2025 Researchers from Argonne National Laboratory and the University of Chicago’s Pritzker School of Molecular Engineering have uncovered why a newer class of lithium-ion batteries, once seen as safer and longer-lasting, has struggled to meet expectations. Neetika Walter, Interesting Engineering, 29 Dec. 2025 See All Example Sentences for lithium-ion battery

Word History

First Known Use

1980, in the meaning defined above

Time Traveler
The first known use of lithium-ion battery was in 1980

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Cite this Entry

“Lithium-ion battery.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lithium-ion%20battery. Accessed 3 Jan. 2026.

Last Updated: - Updated example sentences
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