Abstract
Abstract Manganese-based layered oxides are regarded as an excellent cathode material for Na-ion batteries. These materials are susceptible to phase transitions, which result in structural instability and constrain their reversible capacity. Layered self-assembled microsphere-type cathodes Na0.7Mn0.6Cu0.3Cr0.1O2 were developed to modify the efficiency of sodium-ion batteries through a technique focused on controlling morphology. The incorporation of organic compounds such as benzoic acid employs molecular design techniques to modify intermolecular interactions and increase the spacing between layers. The self-assembled layered spherical architecture enhances the interface between the cathode and electrolyte, thereby markedly boosting the transport efficiency of sodium ions. Based on the cathode for batteries, it demonstrates a substantial initial capacity of 200.26 mAh g-1 at a current density of 26 mA g-1 within the voltage amount of 1.5-4.1 V, with a capacity retention of 82.69% after 100 cycles.
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