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軽い蓄電池 Lightweight batteries


I still clearly remember what our science teacher told us in my junior high school days, which was about 60 years ago.
“It is a very big invention if someone makes a lightweight battery compared to a heavy zinc battery.”
And now it has been realized as one of the key enabling technologies of 21st century.
Development story of the lithium battery, Nobel Prize awarded technology in 2019, is discussed with its applications in many fields and its great contribution to the environment at the evening course of Onomichi Free English learning session on November 2nd (Saturday), which is emceed by me.