A LiPO<sub>2</sub>F<sub>2</sub>/LiPF<sub>6</sub> dual-salt electrolyte enabled stable cycling performance of nickel-rich lithium ion batteries
Lili Liu, Shijie Gu, Shili Wang, Xiuyun Zhang, Shimou Chen
Abstract
dual-lithium salt at 2.8-4.5 V was investigated. It was found that the dual-lithium salt can inhibit the oxidative decomposition of the electrolyte, suppress the dissolution of the transition metal ions in the electrode material, and reduce the side reaction between the transition metal ions and the electrolyte. We believe that the strategy of a dual-lithium salt electrolyte may provide a new idea to stabilize the electrode/electrolyte interface at high voltage, which is very important for developing high energy density batteries.
Topics & Concepts
ElectrolyteLithium (medication)ElectrochemistrySalt (chemistry)ElectrodeInorganic chemistryChemistryIonDissolutionNickelMaterials scienceChemical engineeringOrganic chemistryPhysical chemistryEndocrinologyEngineeringMedicineAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesAdvanced Battery Technologies Research