Lithium iodide as a promising electrolyte additive for lithium-sulfur batteries: mechanisms of performance enhancement.
basic_science · Level V
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- Record sourced from PubMed, PMID 25367318.
- Also identified by DOI 10.1002/adma.201404194.
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Abstract
Lithium Iodide (LiI) is reported as a promising electrolyte additive for lithium-sulfur batteries. It induces formation of Li-ion-permeable protective coatings on both positive and negative electrodes, which prevent the dissolution of polysulfides on the cathode and reduction of polysulfides on the anode. In addition to enhancing the cell cycle stability, LiI addition also decreases the cell overpotential and voltage hysteresis.