L 6007 (OTTO) Lithium difluoro(oxalato)borate, 95% Cas 409071-16-5 - used advantages of both lithium bis(oxalato)borate (LiBOB) and LiBF4. LIODFB also stabilizes the solid electrolyte interface (SEI) on the surface of a graphite anode and is also used as an additive to improve the cycling efficiency and capacity retention of cells