A rechargeable battery comprising: a battery module configured to include a plurality of unit cells (C1 to C6) connected in series between a positive terminal (B+) and a negative terminal (B-), a first external port connected to the positive terminal (B+), and a second external port connected to the negative terminal (B-); and a pack fuse formed on a high current path between the first external port and the positive terminal (B+); characterized in that the battery includes a first switch to electrically interconnect a positive terminal of one unit cell and one end of the pack fuse, and a second switch to electrically connect the other end of the pack fuse and a positive terminal of the another one unit cell, wherein the switches (30, 40) form a bypass path that bypasses a current between the one unit cell and the another one unit cell among the plurality of unit cells (C1 to C6) via the pack fuse depending on internal pressure of the battery module, wherein each of the plurality of unit cells (C1 to C6) includes an electrode assembly including the positive and negative terminals (15, 17), and a case for accommodating the electrode assembly, wherein each of the first and second switches (30, 40) includes a first short-circuit plate (30a, 40a) that extends from the case to be convexly formed toward the inside of the case, and a second short-circuit plate (30b, 40b) that is disposed facing the first short-circuit plate (30a, 40a) and spaced apart from the first short-circuit plate (30a, 40a), and wherein the first short-circuit plate (30a, 40a) is adapted to be deformed depending on the internal pressure to physically contact the second short-circuit plate (30b, 40b). a battery module configured to include a plurality of unit cells (C1 to C6) connected in series between a positive terminal (B+) and a negative terminal (B-), a first external port connected to the positive terminal (B+), and a second external port connected to the negative terminal (B-); and a pack fuse formed on a high current path between the first external port and the positive terminal (B+); characterized in that the battery includes a first switch to electrically interconnect a positive terminal of one unit cell and one end of the pack fuse, and a second switch to electrically connect the other end of the pack fuse and a positive terminal of the another one unit cell, wherein the switches (30, 40) form a bypass path that bypasses a current between the one unit cell and the another one unit cell among the plurality of unit cells (C1 to C6) via the pack fuse depending on internal pressure of the battery module, wherein each of the plurality of unit cells (C1 to C6) includes an electrode assembly including the positive and negative terminals (15, 17), and a case for accommodating the electrode assembly, wherein each of the first and second switches (30, 40) includes a first short-circuit plate (30a, 40a) that extends from the case to be convexly formed toward the inside of the case, and a second short-circuit plate (30b, 40b) that is disposed facing the first short-circuit plate (30a, 40a) and spaced apart from the first short-circuit plate (30a, 40a), and wherein the first short-circuit plate (30a, 40a) is adapted to be deformed depending on the internal pressure to physically contact the second short-circuit plate (30b, 40b).