SPECIFIC ELECTROCHEMICAL CELL FOR ACCUMULATOR OPERATING ACCORDING TO THE PRINCIPLE OF FORMING AN ALLOY WITH THE ACTIVE MATERIAL OF THE NEGATIVE ELECTRODE COMPRISING A SPECIFIC PAIR OF ELECTRODES

An electrochemical cell for an accumulator operating according to the principle of forming an alloy with the active material of the negative electrode during the charge process comprising: a negative electrode comprising, as active material, a material alloyable with an element M, M being a metal element; a positive electrode comprising, as active material, a conversion material; an electrolyte comprising at least one salt of M disposed between the negative electrode and the positive electrode.