Constructing Wide‐Temperature‐Range Li–S Batteries Through Synergistic Boride Spin‐Polarization Coupling Regulation and Magnetohydrodynamic Effects
Abstract
ABSTRACT Lithium–sulfur batteries, despite their high specific capacity, high theoretical energy density, environmental benignity, and low cost‐related unique advantages, face critical challenges including polysulfide shuttling, sluggish redox kinetics, and uncontrolled lithium dendrite growth. Here, we propose a magnetic field cooperative regulation strategy that concurrently optimizes both sulfur cathode and lithium via spin engineering and magnetohydrodynamic (MHD) effects. Bilayer‐hollow FeNi boride bipyramids (FeNi─B) with nanoreactor architectures were designed, in which an external magnetic field triggers 3d‐orbital electron spin rearrangement. Simultaneously, the uniform distribution of ions and dendrite‐free deposition were achieved by driving lithium‐ion spiral convection through MHD effects. It is worth noting that the optimized cells exhibit exceptional cycling stability under extreme conditions (−40°C). Density functional theory and multiphysics simulations jointly reveal two mechanisms: Spin‐polarization‐enhanced adsorption energy for sulfur species and lithium protection via Lorentz‐force‐mediated ion transport. This work establishes a novel paradigm for designing magnetic field‐responsive electrocatalysts and manipulating spin‐orbit coupling, offering broad implications for multiphysical‐field strategies in next‐generation batteries.
Article Details
Authors (12)
Bin Wang
Beining Guo
School of Chemistry and Chemical Engineering Shandong University Jinan China
Muhammad Mamoor
Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Material, Shandong University, Jinan 250100, China
Yueyue Kong
Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Material, Shandong University, Jinan 250100, China
Lu Wang
Fengbo Wang
Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Material, Shandong University, Jinan 250100, China
Zhongxin Jing
Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Material, Shandong University, Jinan 250100, China
Guangmeng Qu
Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Material, Shandong University, Jinan 250100, China
Xiyu He
Key Laboratory of Colloid and Interface Chemistry (Ministry of Education) School of Chemistry and Chemical Engineering Shandong University Jinan China
Lingtong Kong
Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Material, Shandong University, Jinan 250100, China
Pengtu Zhang
School of Chemical Engineering Shandong Institute of Petroleum and Chemical Technology Dongying China
Liqiang Xu
Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Material, Shandong University, Jinan 250100, China