电池(电)
阴极
阳极
水溶液
电化学
储能
氧化还原
溶解度
化学
电极
化学工程
无机化学
金属
材料科学
有机化学
物理化学
热力学
功率(物理)
工程类
物理
作者
Chiwei Xu,Zhengwei Yang,Huihui Yan,Li Jing,Haoxiang Yu,Liyuan Zhang,Jie Shu
标识
DOI:10.1073/pnas.2118675119
摘要
SignificanceBased on the analysis of three thermodynamic parameters of various M-S systems (solubility of metal sulfides [MxSy] in aqueous solution, volume change of the metal-sulfur [M-S] battery system, and the potential of S/MxSy cathode redox couple), an aqueous Pb-S battery operated by synergistic dual conversion reactions (cathode: S⇄PbS, anode: Pb2+⇄PbO2) has been officially reported. Benefitting from the inherent insolubility of PbS and a conversion-type counter electrode, the aqueous Pb-S battery exhibited two advantages: it is shuttle effect free and has a dendrite-free nature. Moreover, the practical value of the Pb-S battery was further certified by the prototype S|Pb(NO3)2ǁZn(NO3)2|Zn hybrid cell, which afforded an energy density of 930.9 Wh kg-1sulfur.
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