A liquid metal-fluoropolymer artificial protective film enables robust lithium metal batteries at sub-zero temperatures
Hongbao Li, Rong Hua, Yang Xu, Da Ke, Chenyu Yang, Quanwei Ma, Longhai Zhang, Tengfei Zhou, Chaofeng Zhang
Abstract
with an over-potential of about 50.4 mV after 500 h, and the full cells have a high capacity retention rate of up to 98.5% at a current density of 0.5 C after 100 cycles. Furthermore, the battery shows improved low temperature performance at -30 °C, validating the potential of the protective film to enable battery operation at sub-zero temperatures.
Topics & Concepts
FluoropolymerLithium metalMetalMaterials scienceLithium (medication)Zero (linguistics)Composite materialChemical engineeringMetallurgyChemistryPolymerEngineeringPhysical chemistryAnodeElectrodeMedicinePhilosophyLinguisticsEndocrinologyAdvanced Battery Materials and TechnologiesAdvancements in Battery MaterialsAdvanced Battery Technologies Research