Dynamically Adjusting State of Charge and Charging Method to Preserve Lithium-Ion Battery Cell Life

Lithium-ion (li-ion) battery cells are used in the majority of portable computing devices. The components of a li-ion battery cell may age more quickly while the li-ion battery cell is maintained at a high state of charge (SOC) while having a high temperature. As described in this publication, the problem of accelerated aging of a li-ion battery cell due to a high SOC while having a high temperature is solved by a computing device implementing, through a Charging Manager, a smart charging algorithm that dynamically adjusts the SOC and charging method to preserve li-ion battery cell life. The Charging Manager, through implementing the smart charging algorithm, may determine the current SOC, determine the time available for charging (total charging time), estimate how long it will take to charge from the current SOC to a 100% SOC, and modify the charging process of the computing device based on these variables to maintain a lower SOC for as much of the total charging time as possible, thus inhibiting the aging process. In an aspect, the Charging Manager may direct completion of charging the li-ion battery cell to a 100% SOC shortly before the time available for charging ends