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作者（2019）在《Microwave assisted hydrothermal synthesis of tin niobates nanosheets with high cycle stability as lithium-ion battery anodes》一文中研究指出：In this study, SnNb2O6 and Sn2Nb2O7 nanosheets are synthetized via microwave assisted hydrothermal method, and innovatively employed as anode materials for lithium-ion battery. The SnNb2O6 electrode exhibits high reversible capacity and excellent cycling stability（498 mAh/g at 0.1 A/g after 100 cycles）,which is superior to that of Sn2Nb2O7 electrode（173 mAh/g at 0.1 A/g after 100 cycles）. Even increasing the current density to 2.0 A/g, the SnNb2O6 electrode still delivers a reversible capacity up to 306 mAh/g.The rate performance of the SnNb2O6 electrode is also better than that of Sn2Nb2O7 electrode at different current densities from 0.1 A/g to 2.0 A/g. The enhanced electrochemical performance of SnNb2O6 nanosheets can be attributed to the unique layered structure, which is conducive to the diffusion of the lithium ions and the migration of electrons during discharge/charge.
Abstract
In this study, SnNb2O6 and Sn2Nb2O7 nanosheets are synthetized via microwave assisted hydrothermal method, and innovatively employed as anode materials for lithium-ion battery. The SnNb2O6 electrode exhibits high reversible capacity and excellent cycling stability（498 mAh/g at 0.1 A/g after 100 cycles）,which is superior to that of Sn2Nb2O7 electrode（173 mAh/g at 0.1 A/g after 100 cycles）. Even increasing the current density to 2.0 A/g, the SnNb2O6 electrode still delivers a reversible capacity up to 306 mAh/g.The rate performance of the SnNb2O6 electrode is also better than that of Sn2Nb2O7 electrode at different current densities from 0.1 A/g to 2.0 A/g. The enhanced electrochemical performance of SnNb2O6 nanosheets can be attributed to the unique layered structure, which is conducive to the diffusion of the lithium ions and the migration of electrons during discharge/charge.
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