BATTERY CURRENT COLLECTOR COMPRISING METAL PLATE HAVING THROUGH HOLES AND POROUS REINFORCING MATERIAL THAT FILLS THROUGH HOLES, AND SECONDARY BATTERY COMPRISING SAME

The present invention relates to: a current collector comprising a metal plate having a plurality of through holes formed in the thickness direction, and a porous reinforcing material filling the through holes of the metal plate; and a secondary battery comprising the current collector, and provides the effects of increasing ion conductivity of the current collector in the thickness direction and preventing stress from being concentrated at a specific part. La présente invention concerne : un collecteur de courant comprenant une plaque métallique pourvue d'une pluralité de trous traversants formés dans le sens de l'épaisseur, et un matériau de renfort poreux remplissant les trous traversants de la plaque métallique ; et une batterie secondaire comprenant ledit collecteur de courant, et a pour effet d'augmenter la conductivité ionique du collecteur de courant dans le sens de l'épaisseur et d'empêcher la concentration de contrainte au niveau d'un élément spécifique. 본 발명은 다수의 두께 방향 관통홀이 형성된 금속 플레이트; 및 상기 금속 플레이트의 관통홀에 충진된 다공성 보강재를 포함하는 집전체 및 이를 포함하는 이차전지에 관한 것으로, 집전체의 두께 방향 이온 전도도를 높이고, 특정 부위에 응력이 집중되는 것을 방지하는 효과가 있다.