[Technical Comment] Comment on “Cycling Li-O2 batteries via LiOH formation and decomposition”
Thursday, May 5, 2016 - 14:01
in Physics & Chemistry
Liu et al. (Research Article, 30 October 2015, p. 530) described a lithium-oxygen (Li-O2) battery based on lithium iodide (LiI)–assisted lithium hydroxide (LiOH) formation and decomposition. We argue that LiOH cannot be oxidized by triiodide (I3–). The charge capacity is from the oxidation of I– instead of LiOH. The limited-capacity cycling test is misleading when the electrolyte contributes considerable parasitic reaction capacity. Authors: Yue Shen, Wang Zhang, Shu-Lei Chou, Shi-Xue Dou