Crack pinning enables stable cycling of micro-sized silicon anodes for wide-temperature lithium-ion batteries
Kangjia Hu, Jiahui Zhang, Xinrun Yu, Jinbao Wang, Xianluo Hu
Abstract
Engineered gradient hybrid SEI with nanocrystalline crack-pinning domains prevents fracture propagation in micro-Si anodes, enabling 1-Ah cells to retain >80% capacity over −20 to 70 °C and resolving Si's fundamental stability-conductivity trade-off.
Topics & Concepts
CyclingMaterials scienceAnodeSiliconLithium (medication)Temperature cyclingIonComposite materialOptoelectronicsEngineering physicsElectrodeChemistryThermodynamicsEngineeringArchaeologyHistoryOrganic chemistryPhysicsPhysical chemistryEndocrinologyThermalMedicineAdvancements in Battery MaterialsSemiconductor materials and devicesIntegrated Circuits and Semiconductor Failure Analysis