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Title: Stabilizing the surface of lithium metal

Lithium metal is an ideal anode for the next generation of high capacity rechargeable batteries, including Li-air, Li-S, and other Li-based batteries using intercalation compounds. To enable the broad applications for lithium anodes, more fundamental studies need to be conducted to simultaneously address the two barriers discussed above. One of the key breakthroughs in this field may come from the development of new electrolytes (and additives) which can form a stable SEI layer with enough mechanical strength and flexibility. The ideal electrolyte may consist of only two components; one component inhibits dendrite growth, while another component forms a stable SEI layer to improve Coulombic efficiency. In this review, the status of three approaches at manipulating and controlling the lithium metal – electrolyte interface were discussed. While previous studies concentrated on coatings with minimal surface connectivity, the approaches discussed, namely a coating that forms and dissipates into the electrolyte based on charge density, a coating bonded to the termination layer of lithium, and a conformal carbonate coating formed at the interface, all highlight new research directions. Although there are still many obstacles to be overcome, we are optimistic that Li metal can be used as an anode in rechargeable batteries inmore » the foreseeable future. This will enable wide« less
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Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 0883-7694; applab; VT1201000
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: MRS Bulletin; Journal Volume: 39; Journal Issue: 05
Materials Research Society
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org:
Country of Publication:
United States
36 MATERIALS SCIENCE li; electrodeposition; coating