Patent ID: 8535831
Filing Date: 2013-09-17
Classification: A61N,H01M,Y02E,Y02P,Y10T

Abstract:
1. A battery, comprising: an electrolyte activating a positive electrode and a negative electrode; the positive electrode including a first active material on a metal substrate, the first active material including lithium; the negative electrode including a second active material on a metal substrate, the second active material including carbon; the positive and negative electrodes establishing a Zero Volt Crossing Potential (ZCP) relative to a reference level when the voltage between the electrodes is zero; the negative electrode can react with the electrolyte to form a solid electrolyte interface (SEI) layer, the SEI layer being susceptible to damage when a voltage potential exceeding a Film Dissolution Potential (FDP) is applied to the negative electrode, the FDP being lower than the maximum positive operating potential of the battery; and the positive and negative electrodes configured to establish the ZCP at a lower level than the FDP when the FDP is measured relative to the reference potential.