| abstract |
The invention relates to an electrochemical cell for a lithium-ion battery comprising: - a negative electrode; - a positive electrode comprising, as active material, an oxide compound corresponding to the general formula LiMO 2 , in which M is an element chosen from Ni, Co, Mn, Al, Mg and mixtures thereof, said positive electrode being combined with an aluminium current collector; and - an electrolyte positioned between said negative electrode and said positive electrode, said electrolyte comprising, as lithium salt, lithium bis(trifluoromethylsulfonyl)imide or lithium bis(fluorosulfonyl)imide, and comprising, as organic solvent, trifluoropropylene carbonate. |