Etymology

lithium-ion battery

Today it means: A form of rechargeable battery containing lithium compounds, but not elemental lithium, used in many consumer electronics devices. Full definition →

Japanese リチウムイオン電池
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The story

  1. Japanese · calque ofリチウムイオン電池
  2. English todaylithium-ion battery

Calque of Japanese リチウムイオン電池 (richiumu ion denchi). Lithium-ion batteries were first commercially produced and marketed in Japan.

Etymology from Wiktionary, CC BY-SA 4.0.