A secondary battery comprising: an electrode assembly; a case accommodating the electrode assembly, wherein the electrode assembly comprises a first electrode plate having a first electrode uncoated portion, a second electrode plate having a second electrode uncoated portion, and a separator located between the first electrode plate and the second electrode plate; a cap plate sealing the case; a first electrode terminal electrically connected to the electrode assembly and passing through the cap plate, wherein the electrode assembly is connected to the first electrode terminal through a first current collection tab, and a second electrode terminal electrically connected to the second electrode plate, wherein the electrode assembly is connected to the second electrode terminal through a second current collection tab wherein the first electrode uncoated portion is the first current collection tab, and the secondary battery further comprises an insulation support member located between each of the first and second electrode terminals (120, 130) and the cap plate and mechanically coupling the first and second electrode terminals (120, 130) to the cap plate, characterized in that the insulation support member comprises: an insulation part coupled to the first electrode terminal and the second electrode terminal, positioned under the cap plate, and insulating the first and second electrode terminals (120, 130) from the cap plate; a support part coupled to a lower portion of the insulation part and supporting the electrode assembly; and a connection part connecting the insulation part and the support part to each other, and the insulation part comprises: a terminal hole comprising a first terminal hole (141a1) coupled to the first electrode terminal and a second terminal hole (141a2) coupled to the second electrode terminal; a throughhole positioned between the first terminal hole (141a1) and the second terminal hole (141a2), wherein the throughhole is formed at a location corresponding to a safety vent and an electrolyte injection hole formed in the cap plate; and a coupling hole positioned at an exterior side of the terminal hole. an electrode assembly; a case accommodating the electrode assembly, wherein the electrode assembly comprises a first electrode plate having a first electrode uncoated portion, a second electrode plate having a second electrode uncoated portion, and a separator located between the first electrode plate and the second electrode plate; a cap plate sealing the case; a first electrode terminal electrically connected to the electrode assembly and passing through the cap plate, wherein the electrode assembly is connected to the first electrode terminal through a first current collection tab, and a second electrode terminal electrically connected to the second electrode plate, wherein the electrode assembly is connected to the second electrode terminal through a second current collection tab wherein the first electrode uncoated portion is the first current collection tab, and the secondary battery further comprises an insulation support member located between each of the first and second electrode terminals (120, 130) and the cap plate and mechanically coupling the first and second electrode terminals (120, 130) to the cap plate, characterized in that the insulation support member comprises: an insulation part coupled to the first electrode terminal and the second electrode terminal, positioned under the cap plate, and insulating the first and second electrode terminals (120, 130) from the cap plate; a support part coupled to a lower portion of the insulation part and supporting the electrode assembly; and a connection part connecting the insulation part and the support part to each other, and the insulation part comprises: a terminal hole comprising a first terminal hole (141a1) coupled to the first electrode terminal and a second terminal hole (141a2) coupled to the second electrode terminal; a throughhole positioned between the first terminal hole (141a1) and the second terminal hole (141a2), wherein the throughhole is formed at a location corresponding to a safety vent and an electrolyte injection hole formed in the cap plate; and a coupling hole positioned at an exterior side of the terminal hole. an insulation part coupled to the first electrode terminal and the second electrode terminal, positioned under the cap plate, and insulating the first and second electrode terminals (120, 130) from the cap plate; a support part coupled to a lower portion of the insulation part and supporting the electrode assembly; and a connection part connecting the insulation part and the support part to each other, and the insulation part comprises: a terminal hole comprising a first terminal hole (141a1) coupled to the first electrode terminal and a second terminal hole (141a2) coupled to the second electrode terminal; a throughhole positioned between the first terminal hole (141a1) and the second terminal hole (141a2), wherein the throughhole is formed at a location corresponding to a safety vent and an electrolyte injection hole formed in the cap plate; and a coupling hole positioned at an exterior side of the terminal hole. a terminal hole comprising a first terminal hole (141a1) coupled to the first electrode terminal and a second terminal hole (141a2) coupled to the second electrode terminal; a throughhole positioned between the first terminal hole (141a1) and the second terminal hole (141a2), wherein the throughhole is formed at a location corresponding to a safety vent and an electrolyte injection hole formed in the cap plate; and a coupling hole positioned at an exterior side of the terminal hole.