期刊
ELECTROCHEMICAL AND SOLID STATE LETTERS
卷 12, 期 4, 页码 A61-A65出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3065967
关键词
intercalation compounds; manganese compounds; secondary cells; X-ray photoelectron spectra; zinc
资金
- Natural Science Foundation of China [50632040, 50802049]
The reversible intercalation of Zn2+ ions into manganese dioxide was first reported in an aqueous system and a large capacity (210 mAh g(-1)) was measured. A cycle life test was performed at 1 A g(-1), and after 50 cycles, no capacity fading was found, which indicates the good cycling properties of manganese dioxide toward the insertion of zinc ions. X-ray photoelectron spectrum measurements indicated that Zn2+ ions in the electrolyte are involved in the charge storage process of manganese dioxide. X-ray diffraction results exhibited the kinetic stability of the host structure in allowing high-capacity, single-phase, and reversible zinc-ion intercalation.
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