Paidi, Anil K. Park, Woon Bae Paidi, Vinod K. Lee, Jinhyeok Lee, Kug-Seung Ahn, Hyungju Avdeev, Maxim Chae, Keun Hwa Pyo, Myoungho Wu, Junxiu Sohn, Kee-Sun Ahn, Docheon Lu, Jun 2024-06-20T03:00:10Z 2024-06-20T03:00:10Z 2024-06-20 2024-09 1613-6810 https://pubs.kist.re.kr/handle/201004/150095 Sodium-ion batteries (SIBs) have emerged as a compelling alternative to lithium-ion batteries (LIBs), exhibiting comparable electrochemical performance while capitalizing on the abundant availability of sodium resources. In SIBs, P2/O3 biphasic cathodes, despite their high energy, require furthur improvements in stability to meet current energy demands. This study introduces a systematic methodology that leverages the meta-heuristically assisted NSGA-II algorithm to optimize multi-element doping in electrode materials, aiming to transcend conventional trial-and-error methods and enhance cathode capacity by the synergistic integration of P2 and O3 phases. A comprehensive phase analysis of the meta-heuristically designed cathode material Na(0.76)Ni(0.20)Mn(0.42)Fe(0.30)Mg(0.04)Ti(0.015)Zr(0.025)O2 (D-NFMO) is presented, showcasing its remarkable initial reversible capacity of 175.5 mAh g(-1) and exceptional long-term cyclic stability in sodium cells. The investigation of structural composition and the stabilizing mechanisms is performed through the integration of multiple characterization techniques. Remarkably, the irreversible phase transition of P2 -> OP4 in D-NFMO is observed to be dramatically suppressed, leading to a substantial enhancement in cycling stability. The comparison with the pristine cathode (P-NFMO) offers profound insights into the long-term electrochemical stability of D-NFMO, highlighting its potential as a high-voltage cathode material utilizing abundant earth elements in SIBs. This study opens up new possibilities for future advancements in sodium-ion battery technology. English Wiley - V C H Verlag GmbbH & Co. Enhancing P2/O3 Biphasic Cathode Performance for Sodium-Ion Batteries: A Metaheuristic Approach to Multi-Element Doping Design Article 10.1002/smll.202402585 1 Small, v.20, no.38 Small 20 38 N scie scopus 001244059700001 2-s2.0-85195608688 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article NONDOMINATED SORTING APPROACH CHEMISTRY DISCOVERY biphasic in situ X-ray diffraction layered oxide OP4 phase P2/O3 phase phase transformation sodium-ion batteries sustainable cathode Z phase