A low-cost and eco-friendly system based on a manganese-based complex cathode and zinc anode was demonstrated. The cathode is able to reversibly (de-)insert Zn ions, providing a high capacity of 248 mA h g at 0.1 A g. TEM and XRD were utilized to determine the electrochemical mechanism of this high capacity cathode. Moreover, the contribution of pre-added Mn in electrolyte to the capacity was revealed, and nearly 18.9% of the capacity is ascribed to the contribution of pre-added Mn. With the help of additive, this aqueous rechargeable battery shows outstanding electrochemical property. Its cycling performance is good with 6% capacity loss after 2000 cycles at 4.0 A g, highlighting it as a promising system for aqueous rechargeable battery applications.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9080094 | PMC |
http://dx.doi.org/10.1039/c8ra01982g | DOI Listing |
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