Organogermanium Nanowire Cathodes for Efficient Lithium-Oxygen Batteries.
basic_science · Level V
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- Record sourced from PubMed, PMID 33174719.
- Also identified by DOI 10.1021/acsnano.0c07262.
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Abstract
We report a technique for effectively neutralizing the generation of harmful superoxide species, the source of parasitic reactions, in lithium-oxygen batteries to generate stable substances. In organic electrolytes, organogermanium (Propa-germanium, Ge-132) nanowires can suppress solvated superoxide and induce strong surface-adsorption reaction due to their high anti-superoxide disproportionation activity. Resultantly, the effect of organogermanium nanowires mitigate toxic oxidative stress to stabilize organic electrolytes and promote good Li<sub>2</sub>O<sub>2</sub> growth. These factors led to long duration of the electrolytes and impressive rechargeability of lithium-oxygen batteries.