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| STUDY ON ELECTROCHEMICAL PROPERTIES OF CHEMICALLY-MODIFIED MnO2 |
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Received:September 21, 2005
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| DOI： |
| KeyWord:Modified-chemically MnOz ; Rechargeable; Ion-doped |
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| Zijin Mining Group Co., Ltd. , Shanghang 364200, Fujian , China |
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| Abstract: |
| Modified MnO_2 was synthesized by(Bi~(3+),Pb~(2+),Co~(2+)) the introduction of dopant.The electrochemical studies were carried out by charge-discharge,cyclic voltammetry and the morphologies characterized by SEM analysis.Results indicated that the compound still retained about 70% of its initial discharge capacity after 80 cycles by Bi-substitutions of 0.1 mole rate and exhibited a good cycling performance.The morphologies of sample was circle or ellipse and was favorable to enhancing the cycling performance |
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