@article{Wang2026, 
author = {Lin Wang and Kai Sun and Zengyan Wei and Wenshu Yang and Qiang Zhang and Huasong Gou and Gaohui Wu},
title = {Self-supporting composite anodes with three-dimensional network by wood-derived hard carbon in rechargeable metallic magnesium batteries},
year = {2026},
journal = {Journal of Magnesium and Alloys},
volume = {18},
number = {C},
keywords = {Mg batteries, Interface modification, Hard carbon/Mg composites, Reversible Mg chemistry, Pressure infiltration},
url = {https://www.sciopen.com/article/10.1016/j.jma.2025.06.019},
doi = {10.1016/j.jma.2025.06.019},
abstract = {Rechargeable metallic magnesium batteries (RMBs) are expected to be a potential replacement for lithium counterparts. Yet, exotic electrolyte components forming passing layers on magnesium (Mg) surfaces usually leads to ultrahigh overpotential for reversible Mg chemistry. Here a novel self-supporting composite was constructed to address this issue by using chemically activated natural jujube wood-derived hard carbons (a-JHCs) with a three-dimensional (3D) network like skeleton as the artificial Mg-ions (Mg2+)-conducting interphase, achieving selective Mg2+ transport. Different from the traditional artificial solid-electrolyte interphase (SEI), the porous a-JHCs allows for 3D ion-conduction, thereby improving ion transport efficiency. Meanwhile, interfacial characteristics of a-JHCs have been demonstrated to suppress the intrusion of Mg deposits into micro-porous separators, allowing the Mg plating/stripping reaction beneath the interface. The artificial interface with low electronic conductivity significantly stabilizes the Mg electrode in conventional organic electrolytes. We show this proof-of-concept enables the reversible cycling of a Mg||V2O5 full-cell in the water-containing, and also opens the door to electrolytes previously considered as non-compatible with Mg.}
}