The biggest hurdle facing the development of Na–O₂ batteries is parasitic chemistry. In their Communication (DOI: 10.1002/anie.201709351) S. A. Freunberger et al. show evidence that the highly reactive singlet oxygen forms at all stages of cycling, especially at high charging voltages, and that it is the main driver for parasitic reactions. However, trace water, which is needed for high capacities also drives the parasitic chemistry. Ways to prevent or eliminate singlet oxygen are therefore needed to improve cyclability.

中文翻译：

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非质子酸钠-O2电池循环过程中的单重态氧

Na–O ₂电池开发面临的最大障碍是寄生化学。在他们的交流中（DOI：10.1002 / anie.201709351）S.A. 有证据表明，高反应性单线态氧在循环的所有阶段均形成，尤其是在高充电电压下，并且是寄生反应的主要驱动力。但是，高容量所需的微量水也会驱动寄生化学反应。因此需要防止或消除单重态氧的方法来改善循环性。