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Li-ion batteries (LIBs) has been used as large energy storage device over decades. Due to the increasing costs and limited Li resources, Na-ion batteries (NIBs) with similar storage mechanisms to… Click to show full abstract
Li-ion batteries (LIBs) has been used as large energy storage device over decades. Due to the increasing costs and limited Li resources, Na-ion batteries (NIBs) with similar storage mechanisms to LIBs are potentially able to be the next generation electrochemical energy storage device [1]. Layered oxide compounds with the general formula of NaxTMO2(TM = Mn, Co, Ni, etc.) can provide two dimensional (2D) diffusion path for Na intercalation/deintercalation [2,3]. However, NIBs suffer from the low capacity and cyclability, and people are devoting to solve these problems [4]. Here we report a novel layered NIBs cathode, which combine the Li2MnO3 with the Na-P3 phase. This heteroepitaxial nanostructure cathode can improve the rate performance and higher initial capacity.
Journal Title: Microscopy and Microanalysis
Year Published: 2018
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