Lithium rechargeable battery with surplus LiFePO4 based cathode relative to Li4Ti5O12 based anode

摘要

An electrochemical cell for a lithium ion rechargeable battery. The electrochemical cell comprises an anode including anode active material having a reduction potential of at least about 1.0 volt, a cathode including cathode active material having an oxidation potential of no more than about 3.7 volts, and an electrolyte separator separating the anode and the cathode.