High rate and stable cycling of lithium metal anode

Lithium metal is an ideal battery anode.
However, the growth of shoots during the cycle and the limited Cullen efficiency hinder its practical application in rechargeable batteries.
Here, we report the use of highly concentrated electrolyte consisting of ether solvent and lithium bis (fluorosulfonyl)
Malaya salt makes it high
Rate cycling of lithium metal anode at high Cullen efficiency (up to 99. 1%)
No crystal growth
Lithium bis with 4 µm (fluorosulfonyl)imide in 1,2-
As an electrolyte, lithium | lithium batteries can be cycled more than 6,000 times in 10 mama-cm-2, copper | lithium batteries can be cycled more than 1,000 times in 4 mama-cm-2, with an average Cullen efficiency of 98. 4%.
These excellent properties can be attributed to increased solvent coordination and availability of lithium ion concentration in the electrolyte.
Further development of this electrolyte may make practical application of lithium metal anode in rechargeable battery possible.
Lithium fluoride phosphate (LiPF), lithium bis(
Trifluoride and sulfur-based)imide (LiTFSI), 1,2-
Dimethoxyl ethane (DME), 1,3-dioxolane (DOL)
And propylene carbonate (PC)(all in battery-grade purity)
Got it from BASF. Lithium bis(fluorosulfonyl)imide (LiFSI)
Obtained from Shokubai, Japan, used-received.
The electrolyte is prepared by dissolving the required amount of salt into the solvent.
Li foil and Cu foil were purchased from MTI company and all foil respectively.
The materials are stored and processed in an MBraun LABmaster glove box with an Ar atmosphere (