BATTERY PACK, CHARGING SYSTEM AND CHARGING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a battery pack capable of carrying out pulse charging on the battery pack side without stopping a charging operation of a charging apparatus based on a charging voltage output from the charging apparatus; a battery system; and a charging method. SOLUTION: This battery pack 2 is provided with: a battery block 21; and a pulse charging control part 222 executing pulse charging by alternately repeating a voltage application period for applying a charging voltage V1supplied from the charging apparatus 3 to the battery block 21, and a current limiting period for supplying a current of a full charge determination current value Ith to the battery block 21. The charging apparatus 3 is provided with: a power circuit 31 charging the battery pack 2 by applying the constant charging voltage V1; and a CCCV charging control part 33 stopping the charging by the power circuit 31 by determining full charge when a charging current Iout is set below a determination threshold value I2set at a current value smaller than the full charge determination current value Ith. COPYRIGHT: (C)2008,JPO&INPIT