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Solid batteries improve safety
https://www.ethz.ch/en/news-and-events/eth-news/news/2016/08/all-solid-state-lithium-ion-batteries.html[font face=Serif][font size=5]Solid batteries improve safety[/font]
04.08.2016 | News
By: Fabio Bergamin
[font size=4]Researchers at ETH Zurich have developed a lithium-ion battery made entirely of solid material: it contains neither liquids nor gels. The battery cannot ignite, even at very high temperatures, giving it a safety advantage over conventional batteries. In addition, they allow new forms of battery design.[/font]
[font size=1]A slice of (white) lithium garnet electrolyte coated with a (black) lithium compound acting as the battery’s minus pole in the laboratory of the ETH researchers. (Photograph: ETH Zurich / Fabio Bergamin)[/font]
[font size=3]Lithium-ion batteries store a lot of energy in a small space, making them the energy source of choice for mobile electronic devices. Today, mobile phones, laptops, e-bikes and electric cars are all powered by such batteries. Researchers at ETH Zurich have now developed a type of battery that, unlike conventional ones, consists entirely of solid chemical compounds and is non-flammable.
Conventional lithium-ion batteries are not without their dangers: mobile phone batteries have exploded several times in the past, resulting in injuries, and only six months ago an entire row of houses burned down in the old town of Steckborn on Lake Constance. The blaze was caused by a model-making battery that allegedly caught fire due to being charged improperly.
…
"In this work we have for the first time built a whole lithium-ion battery with a solid lithium garnet electrolyte and a solid minus pole made of an oxide-based material. Thus, we have shown that it is possible to build whole batteries based on lithium garnet," says ETH Professor Rupp. Thanks to this solid electrolyte one can not only operate batteries at higher temperatures, but also build thin-film batteries, that can even be directly placed on silicon chips.
…[/font][/font]
http://dx.doi.org/10.1002/aenm.20160073604.08.2016 | News
By: Fabio Bergamin
[font size=4]Researchers at ETH Zurich have developed a lithium-ion battery made entirely of solid material: it contains neither liquids nor gels. The battery cannot ignite, even at very high temperatures, giving it a safety advantage over conventional batteries. In addition, they allow new forms of battery design.[/font]
[font size=1]A slice of (white) lithium garnet electrolyte coated with a (black) lithium compound acting as the battery’s minus pole in the laboratory of the ETH researchers. (Photograph: ETH Zurich / Fabio Bergamin)[/font]
[font size=3]Lithium-ion batteries store a lot of energy in a small space, making them the energy source of choice for mobile electronic devices. Today, mobile phones, laptops, e-bikes and electric cars are all powered by such batteries. Researchers at ETH Zurich have now developed a type of battery that, unlike conventional ones, consists entirely of solid chemical compounds and is non-flammable.
Conventional lithium-ion batteries are not without their dangers: mobile phone batteries have exploded several times in the past, resulting in injuries, and only six months ago an entire row of houses burned down in the old town of Steckborn on Lake Constance. The blaze was caused by a model-making battery that allegedly caught fire due to being charged improperly.
…
"In this work we have for the first time built a whole lithium-ion battery with a solid lithium garnet electrolyte and a solid minus pole made of an oxide-based material. Thus, we have shown that it is possible to build whole batteries based on lithium garnet," says ETH Professor Rupp. Thanks to this solid electrolyte one can not only operate batteries at higher temperatures, but also build thin-film batteries, that can even be directly placed on silicon chips.
…[/font][/font]
