Affiliation:
1. School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China
Abstract
Significance
Based on the analysis of three thermodynamic parameters of various M-S systems (solubility of metal sulfides [M
x
S
y
] in aqueous solution, volume change of the metal-sulfur [M-S] battery system, and the potential of S/M
x
S
y
cathode redox couple), an aqueous Pb-S battery operated by synergistic dual conversion reactions (cathode: S⇄PbS, anode: Pb
2+
⇄PbO
2
) 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(NO
3
)
2
ǁZn(NO
3
)
2
|Zn hybrid cell, which afforded an energy density of 930.9 Wh kg
−1
sulfur
.
Funder
NSAF Joint Fund
National Natural Science Foundation of China
Science and Technology Innovation 2025 Major Program of Ningbo
K.C. Wong Magna Fund in Ningbo University
Publisher
Proceedings of the National Academy of Sciences
Cited by
35 articles.
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