Cathode (positive electrode), and this comprehensive lithium ion battery in the state before the first charging process for the formation of a lithium ion battery and lithium ion battery according Formation

The invention relates to a cathode in the state before the first charging operation (Formation) comprising a cathode active material and lithium peroxide. Further, the invention provides a lithium battery or electrochemical cell relates comprising the cathode, a process for formation of the lithium battery and a lithium ion battery having a cathode comprising a cathode active material, separator, anode comprising an anode active material and electrolyte, wherein the cathode active material after complete discharge of a brief break in cell to almost same lithium content has as before the forming.