Suppression of Dendrites by a Self-Healing Elastic Interface in a Sodium Metal Battery
Jianwen Wang, Meiyang Hu, Yingying Zhu, Mengyang Cao, Rashid Khan, Xianwen Wang, Lu Huang, Yingpeng Wu
Abstract
The safety issues caused by sodium dendrites limit the widespread application of sodium metal batteries. Herein, a self-healing polymer electrolyte (SPE) is prepared by immersing the self-healing polymer in a liquid electrolyte. Benefiting from the self-healing properties, elastic interface, and dense nonporous structure of the SPE, the fabricated NaK|MC SPE|NaK symmetric battery presents a long battery life (∼590 h) and low polarization voltage (192 mV). Moreover, the PTCDA|MC SPE|NaK full cell also delivers stable long cycles and outstanding rate performance.
Topics & Concepts
Materials scienceElectrolyteBattery (electricity)PolymerPolarization (electrochemistry)SodiumSelf-healingChemical engineeringPorosityMetalComposite materialElectrodeMetallurgyPower (physics)ChemistryPhysical chemistryAlternative medicineMedicineEngineeringQuantum mechanicsPathologyPhysicsAdvanced Battery Materials and TechnologiesAdvancements in Battery MaterialsAdvanced battery technologies research