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The increasing demand for high‐energy storage systems has propelled the development of Li‐air batteries and Li‐O2/CO2 batteries to elucidate the mechanism and extend battery life. However, the high charge voltage of Li2CO3 accelerates the decomposition of traditional sulfone and ether electrolytes, thus adopting high‐voltage electrolytes in Li‐O2/CO2 batteries is vital to achieve a stable battery...
An HPLC‐UV‐guided separation was performed and four pairs of unprecedented macathiohydantoin dimers, lepithiohydimerins A—D (1—4) bearing a rare disulfide bond were isolated from the tubers of Maca. Their structures were unambiguously confirmed by NMR spectroscopic, X‐ray crystallographic and electronic circular dichroism (ECD) analyses. At the concentration of 20 μmol/L, compounds 2‐1, 2‐2, and 4‐1...
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