Vacancy-rich Al-doped MnO<sub>2</sub> cathodes break the trade-off between kinetics and stability for high-performance aqueous Zn-ion batteries
Yajun Zhao, Shuoxiao Zhang, Yangyang Zhang, Jinrui Liang, Longtao Ren, Hong Jin Fan, Wen Liu, Xiaoming Sun
Abstract
A novel vacancy-rich, Al-doped MnO 2 cathode is proposed for AZIBs, showcasing 3D ion diffusion channels and excellent structural stability. It overcomes the trade-off between electrode kinetics and stability, delivering impressive rate performance and outstanding capacity retention.
Topics & Concepts
Vacancy defectCathodeMaterials scienceKineticsDopingDiffusionIonAqueous solutionElectrodeStability (learning theory)Chemical engineeringOptoelectronicsChemistryCrystallographyPhysical chemistryThermodynamicsComputer sciencePhysicsQuantum mechanicsOrganic chemistryMachine learningEngineeringAdvanced battery technologies researchAdvancements in Battery MaterialsAdvanced Battery Materials and Technologies