Researchers develop safer garnet-based batteries to power cars, devices - battery energy storage

by:MERITSUN     2019-10-22
Researchers develop safer garnet-based batteries to power cars, devices  -  battery energy storage
The new battery is less flammable and is not prone to chemical leakage.
Scientists, including Indian scientists, have developed a button. sized, garnet-
Based on rechargeable batteries, it can power the power grid of vehicles, electronics and storage of renewable energy.
The new battery developed by Venkataraman Thangadurai and colleagues from the University of Calgary, Canada, has stable chemical properties, no.
Flammable and can operate safely at a higher voltage than the existing battery.
Electric vehicles are expected to change transportation completely, but they need safer and better means of transportation.
Perform the battery.
Current Lithium
Ion batteries have problems such as leakage, poor chemical stability, flammable and limited working voltage or energy density.
"The technology we have developed will achieve absolute stability, strength, security and high
All solid power
National lithium batteries for future energy storage . "Such next-
There are many potential applications for generation batteries, including in electric vehicles, consumer electronics, solid
State gas sensors and power grids are used to store power generated by renewable energy sources and provide power during peak demand times.
Existing lithium
Ion batteries for electric and plug-in
In hybrid cars as well as portable electronic devices, membranes of organic polymer compounds and lithium salts are used as electrolyte.
The electrolyte in the battery separates the two electrodes (
Positive cathode and negative anode)
And conduct lithium ion between electrodes during charging and discharge cycles.
Organic polymer currently in use
Fire is therefore a safety issue.
Researchers use solid ceramic electrolyte that does not burn, rather than organic polymers for batteries.
The team also used for the first time a technology called atomic layer deposition to place the alumina film on the pomegranate structural coating on the ceramic electrolyte.
Their chemical engineering, garnet stone-
The team demonstrated the presence of "negligible interface resistance" between the ceramic electrolyte-based lithium metal anode and the ceramic electrolyte interface ".
This led to the rapid transportation of expenses and the improvement of overall performance.
Their newly developed interface chemistry also enabled the team to use lithium metal anode and high
Compared with the existing lithium, the voltage cathode will significantly increase the energy storage capacity and working voltage of the batteryion batteries.
While other research groups around the world have used garnet to make lithium batteries, "We show that we can use lithium metal very efficiently and have the lowest interface --
The charge transfer resistance between the lithium electrode and the pomegranate stone electrolyte, "said Thangadurai.
The study was published in the journal Nature Materials.
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