SECONDARY CELL SYSTEM

摘要

Provided is a secondary cell system that makes it possible to reduce internal resistance that has risen during an idle period for each lithium ion secondary cell contained in the secondary cell system. A secondary cell system (6) includes a plurality of lithium ion secondary cells (100) and an electric charge transfer control means (cell control device (70)). The electric charge transfer control means transfers electric charges, which accumulate on lithium ion secondary cells (100) among the plurality of lithium ion secondary cells (100), and performs SOC-0% control such that each of the lithium ion secondary cells (100) undergoes SOC-0%.