Electrolytes for improved performance of cells with high-capacity anodes based on micron-scale moderate volume-changing particles
摘要
說明書
A conventional salt used in a Li-ion battery electrolyte is LiPF6. Other salts that may be used in electrolyte (which are not necessarily conventional) include: lithium tetrafluoroborate (LiBF4), lithium perchlorate (LiClO4), lithium hexafluoroantimonate (Li SbF6), lithium hexafluorosilicate (Li2SiF6), lithium hexafluoroaluminate (Li3AlF6), lithium bis(oxalato)borate (LiB(C2O4)2, lithium difluoro(oxalate)borate (LiBF2(C2O4)), various lithium imides (such as SO2FN?(Li+)SO2F, CF3SO2N?(Li+)SO2CF3, CF3CF2SO2N?(Li+)SO2CF3, CF3CF2SO2N?(Li+)SO2CF2CF3, CF3SO2N?(Li+)SO2CF2OCF3, CF3OCF2SO2N?(Li+)SO2CF2OCF3, C6F5SO2N?(Li+)SO2CF3, C6F5SO2N?(Li+)SO2C6F5 or CF3SO2N?(Li+)SO2PhCF3, and others), and others.
Electrodes utilized in Li-ion batteries may be produced by (i) formation of a slurry comprising active materials, conductive additives, binder solutions and, in some cases, surfactant or other functional additives; (ii) casting a slurry onto a metal foil (e.g., Cu foil for most anodes and Al foil for most cathodes); and (iii) drying the casted electrodes to completely evaporate the solvent.
