Battery cell and method for producing the same, battery device, electric device, energy storage device

Abstract

The application provides a battery monomer, a preparation method thereof, a battery device, a power utilization device and an energy storage device. The battery monomer comprises a positive electrode sheet, a negative electrode sheet, a diaphragm and an electrolyte. The electrolyte comprises an amphiphilic molecule, an organic solvent and a lithium salt. The amphiphilic molecule has a core-shell structure comprising a metalophilic core segment and a solvent-phobic shell segment. The metalophilic core segment contains a phosphorus-containing functional group capable of forming a coordination bond with a transition metal ion. The amphiphilic molecule has a reverse micelle structure in the electrolyte. The organic solvent comprises a carbonate solvent. The application forms a solvent-phobic shell-metalophilic core nanomicelle structure through the self-assembly behavior of the amphiphilic molecule in the carbonate electrolyte, and effectively inhibits the interfacial migration path of the transition metal ion through the dual functions of selective capture and spatial isolation of the dissolved transition metal ion.

Images