The large voltage hysteresis between charge and discharge results in significant energy loss, which hinders practical application of the high-energy Li-O₂ battery. Oxyhalogen-sulfur electrochemistry offers a new hybrid Li-ion/Li-O₂ battery, where both Li ions and O anions are reversibly stored in the MoS₂ structure. A Li₂MoO₂S₂ compound is formed as the main discharge product that has never been previously observed in the literature. The reaction mechanism and the structure of the Li₂MoO₂S₂ are probed by Raman spectroscopy, X-ray photoelectron spectroscopy, X-ray absorption spectroscopy, differential electrochemical mass spectrometry, and UV-visible spectroscopy. The results show that the MoS₂ is oxidized during discharge and is recovered during charge. The iodine intermediates play an important role in triggering the sequence of electrochemical and chemical reactions in the cell. The Li₂MoO₂S₂ is isostructural to the Li₂MoO₄ rather than adopting structures of other known molybdenum oxysulfides.

充电和放电之间的大电压滞后导致明显的能量损失，这阻碍了高能量Li-O ₂电池的实际应用。氢氧硫电化学技术提供了一种新的锂离子/ Li-O _2混合电池，其中锂离子和O阴离子可逆地存储在MoS ₂结构中。形成Li ₂ MoO ₂ S ₂化合物作为主要放电产物，这在文献中从未见过。Li ₂ MoO ₂ S ₂的反应机理与结构可以通过拉曼光谱，X射线光电子能谱，X射线吸收光谱，差示电化学质谱和UV可见光谱进行探测。结果表明，MoS ₂在放电期间被氧化并且在充电期间被回收。碘中间体在触发细胞中电化学和化学反应的顺序中起着重要作用。Li ₂ MoO ₂ S ₂与Li ₂ MoO ₄是同构的，而不是采用其他已知的氧硫化钼的结构。