Battery system and pack connection method using the same

Abstract

Disclosed are a battery system and a pack connection method using the same, and the battery system includes: a battery device including a plurality of battery packs connected in parallel; for each of the plurality of battery packs, a plurality of switches connected in series to one of both ends of each battery pack; and a Battery Management System (BMS) for dividing the plurality of battery packs into a plurality of pack groups, determining at least one battery pack belonging to each of the plurality of pack groups, determining one pack group of the plurality of pack groups to be discharged, and transmitting a switch control signal for turning on at least one switch connected with the one pack group among the plurality of switches, and turning off the remaining switches among the plurality of switches except for the at least one switch, in which each of the plurality of battery packs includes a plurality of battery cells including metal phase lithium in each negative electrode material.

Dependencies are inferred from the claim text.