Embedded Files
Synthesis of cathode active materials for Li-ion rechargeable battery
Tests electrochemical performances of synthesized active materials e.g., how rate performances can be different
Determine structures by atomic-resolution scanning transmission electron microscope (STEM) imaging
Further investigation of structures (space group) by electron diffractions
Rechargeable battery
Rechargeable battery
Leaving a minimum footprint on the earth by efficient energy consumption becomes of great significance to keep our planet 🌏 sustainable. To realize it, we need storage where we can save and retract energy whenever and wherever we want to use it. Currently, Li-ion rechargeable battery is dominating in energy storage market due to its high energy density and portability. The growth of its market volume is remarkable. Particularly, the electrification of the automobile industry (but not limited to) is one of the greatest changes, happening right now.
However, many unmet demands of Li-ion batteries still remained for higher energy density (capacity), safety, and cyclability. For example, longer travel distance, short charging time, higher safety is needed for an electric vehicle. To resolve these issues, we explore the novel chemistry of materials for rechargeable batteries, particularly cathodes and solid conductors.
Exploring exotic Ionic chemistry, we creates novel battery materials outperforming.
Related References
D. Kim, J. Jeon, J. D. Park, X. G. Sun, X. Gao, H. N. Lee, J. L. MacManus-Driscoll, D.-H. Kwon*, and S. Lee*, “Stable Supercapacity of Binder-Free TiO2(B) Epitaxial Electrodes for All-Solid-State Nanobatteries,” Nano Lett., vol. 23, no. 15, pp. 6815–6822, Aug. 2023. (https://pubs.acs.org/doi/10.1021/acs.nanolett.3c00596)
Z. Lun†, B. Ouyang†, D.-H. Kwon, et al., “Cation-disordered rocksalt-type high-entropy cathodes for Li-ion batteries,” Nature Materials, (2020)
D.-H. Kwon†*, J. Lee†, et al.,, “The Impact of Surface Structure Transformations on the Performance of Li-excess Cation-disordered Rocksalt Cathodes,” Cell Reports Physical Science, 1, 9, (2020).
J. C. Kim†, D.-H. Kwon†, J. Yang†, et al., “Direct Observation of Alternating Octahedral and Prismatic Sodium Layers in O3‐Type Transition Metal Oxides,” Adv. Energy Mater., 10, 31, (2020).
J. Lee, D. A. Kitchaev, D.-H. Kwon, C.-W. et al., “Reversible Mn2+/Mn4+ double redox in lithium-excess cathode materials,” Nature, 556, 7700, (2018).
Google Sites
Report abuse