The invention provides systems and methods for charging an electrochemical device, such as a secondary
electrochemical cell. Charging systems and methods of some embodiments provide charging parameters, such as charging
voltage and charging current, that vary in a preselected manner as a function of time so as to enhance the overall device performance (e.g., specific capacity,
discharge rate, etc.)
cycling properties and useful lifetime of a secondary
electrochemical cell. Charging systems and methods of some embodiments provide charging parameters, such as time varying charging voltages and charging currents, that take into consideration important
electrochemical cell properties that
impact device performance,
cycling and lifetime, such as the
state of health of an electrochemical
cell, and / or the health and / or composition of specific
system components such as
anode,
cathode, and
electrolyte and / or the cycle history of the electrochemical
cell (e.g., cycle number, etc.).