Smart charging algorithm of lithium ion battery

摘要

A charging algorithm of lithium ion battery comprises at least one final stage wherein a maximum charging voltage is reached and the charging stops at said voltage. The state of charge or remaining capacity at the end of last discharging is measured and recorded, and said maximum charging voltage of last charging is also recorded. The maximum charging voltage of a new charging will be determined by said state of charge of last discharging and said maximum charging voltage of last charging. This novel charging algorithm provides longest possible cycle life for the daily used electronic devices while fully utilizes the battery capacity, and also fits the individual user's battery capacity consumption.

主权项

1. A charging algorithm of lithium ion battery comprises:
at least one charging stage before the battery voltage reached a maximum charging voltage; at least one final charging stage after the battery voltage reached said maximum charging voltage, said final charging stage can be lasting for a period of time or can be transient; said maximum charging voltage in each cycle is not greater than an absolute highest charging voltage of respective battery design or chemistry; said maximum charging voltage in each cycle is not less than a lowest charging voltage;wherein said maximum charging voltage in each cycle is variable between said absolute highest charging voltage and said lowest charging voltage.