No, Woo Joo Han, Jonghyun Kim, Mingony Choi, Jihwan Chung, Kyung Yoon Lee, Kwan-young Oh, Si Hyoung 2025-11-21T04:34:46Z 2025-11-21T04:34:46Z 2025-11-11 2026-04 https://pubs.kist.re.kr/handle/201004/153619 Bismuth has emerged as a promising alloying anode for magnesium-ion batteries (MIBs), offering high theoretical capacity with a low electrode potential, and thus serving as a viable alternative to Mg metal. Herein, Bi nanoparticle (NP)-integrated nitrogen-doped carbon nanostructures (Bi@nCN) are synthesized via a scalable one-step carbothermal reduction of BiOCl and Mg phthalocyanine. The resulting Bi@nCN features finely dispersed Bi NPs embedded in a nitrogen-doped carbon matrix, forming a stress-relieving architecture that accommodates the structural changes associated with the two-phase reaction between Bi and Mg3Bi2. Bi@nCN demonstrates excellent electrochemical performance, with high capacity retention, superior rate capability, and minimal polarization growth. Furthermore, full cells employing Bi@nCN anodes exhibit stable operation in chloride-free electrolytes, including ether- and nitrile-based systems, in which Mg metal typically develops insulating passivation layers. These findings highlight the potential of Bi@nCN to enable stable Mg-ion storage in chloride-free electrolytes, overcoming the intrinsic limitations of Mg metal anodes and expanding the scope of MIB chemistry with new electrolyte and cathode combinations. English WILEY-V C H VERLAG GMBH Bismuth-Integrated Nitrogen-Doped Carbon Nanostructures Enabling Broad Electrolyte Compatibility for Mg-Ion Batteries Article 10.1002/batt.202500616 1 Batteries & Supercaps, v.9, no.4 Batteries & Supercaps 9 4 Y scie scopus 001606365800001 Electrochemistry Materials Science, Multidisciplinary Electrochemistry Materials Science Article TIN ALLOY ANODES MAGNESIUM BI PASSIVATION PERFORMANCE DYNAMICS RICH bismuth anode bismuth magnesium alloy electrolyte compatibility magnesium-ion batteries nanoarchitecture