an ionic liquid based sodium metal-hybrid supercapacitor-battery - battery energy storage

by:MERITSUN     2019-10-23
an ionic liquid based sodium metal-hybrid supercapacitor-battery  -  battery energy storage
There is growing interest in developing sodium-based energy storage devices as a replacement for large solar cells
Scale energy storage.
We report a highly stable mixing system including sodium metal anode, highly porous N/S co-
Doping of mesopore carbon cathode and non-
Flammable ionic liquid electrolytepropyl-N-
Methyl pyrrothrium II (fluorosulfonyl)imide (C3mpyrFSI).
This hybrid device operates at 100% Cullen efficiency and shows almost complete capacity retention over 3,000 cycles.
Due to the reversible cathode reaction between Na and N/S functions on the carbon surface, the capacity is up to 716 mAh/g (
At the speed of C/16)
Implemented between 3. 8 V and 0. 005 V vs. Na+/Na.
The optimized device can provide energy density up to 263 Wh. kg-1.
At high speed, the power density of the device reaches 1463 W. kg-1.
These indicators increased to 270 Wh. kg-1 and 3822 W. kg-
1 outstanding combination of super capacitors highlighted at 50 °c
Large cathode with sodium metal anode and ionic liquid electrolyte
Scale energy storage.
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