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SLMPTM is a stabilized lithium metal powder that is a promising alternative to lithium oxide in anode materials. This new material offers an opportunity to increase the variety of electrode active materials in next-generation lithium batteries as well as enhance energy and safety performance for portable electronic applications.
Stabilized lithium powder is prepared from lithium foils in conjunction with a high-melting-point ionic liquid at cryogenic temperatures. The ionic liquid serves as a milling assistor and protective/dispersion agent. The ionic liquid protected nanoscaled Li powders exhibit superior electrochemical properties while assembling in symmetric cells, including remarkably low local current density and excellent long-term cyclability. Moreover, the prepared lithium powders function as favorable prelithiation reagent for lithium-free anodes (e.g., Si, SiO, and SnO2) to achieve high first CE.
lithium powder is a powdery form of lithium that can be prepared with a safe and easily accessible cryomilling process. These prepared lithium powders are stable in a range of solvents, exhibiting superior electrochemical properties as a battery anode. The prepared lithium powders also suppress dendrite formation and alleviate volume expansion upon striping/platting.
In order to develop practical lithium metal anodes, it is critical to suppress dendrite formation and alleviate volume expandability during lithiation. To do so, the present work demonstrates the successful preparation of lithium powders from metallic lithium foils using a safe and readily accessible cryomilling process. These prepared Li powders measuring