LITHIUM SULFUR BATTERY PULSE CHARGING METHOD AND PULSE WAVEFORM

摘要

Provided are methods and apparatus for charging a lithium sulfur (Li—S) battery. The Li—S battery has at least one unit cell comprising a lithium-containing anode and a sulfur-containing cathode with an electrolyte layer there between. One method provides controlled application of voltage pulses at the beginning of the charging process. An application period is initiated after a discharge cycle of the Li—S battery is complete. During the application period, voltage pulses are provided to the Li—S battery. The voltage pulses are less than a constant current charging voltage. Constant current charging is initiated after the application period has elapsed.

主权项

1. A method of charging a lithium-sulfur battery having at least one unit cell comprising a lithium-containing anode and a sulfur-containing cathode with an electrolyte layer there between, the method comprising:
applying voltage pulses during an application period, the application period initiated when a battery charge cycle is initiated, wherein the voltage pulses are less than a constant current charging voltage; and initiating constant current charging after the application period has elapsed.