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Keywords = one-pot spraying construction

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12 pages, 4549 KiB  
Article
One-Pot Spray Engineering to Design Na0.44MnO2 Cathode Electrodes for High-Rate and Cycle-Stable Na-Ion Batteries
by Bon-Ryul Koo, Young-Geun Lee, Sang Ho Lee, Geon-Hyoung An and Chun Huang
Batteries 2022, 8(10), 181; https://doi.org/10.3390/batteries8100181 - 14 Oct 2022
Cited by 7 | Viewed by 2693
Abstract
To improve the practical performance of Na-ion batteries, electrode structure engineering provides a new route to improve the electrochemical efficiency of the cathode active material. In this study, we suggest a new route of one-pot spray engineering to design Na0.44MnO2 [...] Read more.
To improve the practical performance of Na-ion batteries, electrode structure engineering provides a new route to improve the electrochemical efficiency of the cathode active material. In this study, we suggest a new route of one-pot spray engineering to design Na0.44MnO2 cathodes to realize high-rate and cycle-stable Na-ion battery performance. This technique adjusts the electrode structure from a dense to an open sponge-like morphology during layer-by-layer deposition of the materials. The sponge-like cathode results in improved ion insertion and transport kinetics, thus accelerating the rate capability with increased capacity and high-rate cycling capability (100.1 mAh/g and 90.2% cycling retention after 100 cycles at 5 C). These results highlight the potential for design engineering of cathode structures to achieve high-rate and cycle-stable performance for Na-ion batteries. Full article
(This article belongs to the Section Battery Processing, Manufacturing and Recycling)
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