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A novel Mn-based P2/tunnel/O3′ tri-phase composite cathode with enhanced sodium storage properties
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Citations
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References
2020
Year
Materials ScienceChemical EngineeringEngineeringBattery Electrode MaterialsElectrode-electrolyte InterfaceLi-ion Battery MaterialsAdvanced Electrode MaterialComposite Na0.7bi0.01mno2 CathodeLayer Structure Na0.7mno2Cathode MaterialsBatteriesChemistryElectrochemical ProcessSodium BatteryFunctional MaterialsElectrochemistryNovel P2/tunnel/o3
A novel P2/tunnel/O3' composite Na0.7Bi0.01MnO2 cathode is developed via the Na+-site modification of Bi3+ in layer structure Na0.7MnO2 for the first time. Superior electrochemical performance with a high capacity retention of ∼86.5% after 300 cycles at 2C is obtained. Moreover, the tri-phase structure can also serve as a model material, which intuitively evidences the environmental structural stability order: tunnel > P2 > O3'.
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