Scientists have been working on this alternative battery design since the 1970s, and now they’ve made a breakthrough. Is this the end of the lithium-ion battery?

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Yin and yang: Opposites in nature, fluoride and lithium, compete for higher-energy batteries

https://www.purdue.edu/newsroom/releases/2018/Q4/yin-and-yang-opposites-...

“The chemical element that makes up most of today's batteries, lithium, may soon be challenged by its polar opposite on the periodic table: fluoride. Yes, the same stuff in toothpaste.”

A new battery concept based on fluoride ions may increase battery lifespans

https://www.sciencedaily.com/releases/2018/12/181206141209.htm

“In the 1970s, researchers attempted to create rechargeable fluoride batteries using solid components, but solid-state batteries work only at high temperatures, making them impractical for everyday use.”

How Does a Lithium-ion Battery Work?

https://www.energy.gov/eere/articles/how-does-lithium-ion-battery-work

“While the battery is discharging and providing an electric current, the anode releases lithium ions to the cathode, generating a flow of electrons from one side to the other. When plugging in the device, the opposite happens: Lithium ions are released by the cathode and received by the anode.”

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