STACK TYPE ELECTRODE ASSEMBLY HAVING IMPROVED CELL CAPACITY

개시되는 발명은, 폭 방향 양단에 각각 복수의 양극 탭과 복수의 음극 탭이 형성된 스택형 전극 조립체와, 상기 복수의 양극 탭과 복수의 음극 탭이 각각 전기적으로 연결되는 양극 집전체 및 음극 집전체를 포함하고, 상기 양극 탭과 음극 탭의 단부는 상기 양극 집전체와 음극 집전체에 각각 개별적으로 접합되는 전극 조립체 어셈블리에 관한 것이다. Provided are electrode assemblies, which may be used in secondary batteries. The electrode assemblies may include a stack-type electrode assembly; a plurality of positive electrode tabs located at a first end of the stack-type electrode assembly in a width direction; and a plurality of negative electrode tabs located at a second end of the stack-type electrode assembly in the width direction; and a positive electrode current collector and a negative electrode current collector electrically connected to the plurality of positive electrode tabs and to the plurality of negative electrode tabs, respectively, wherein: an end of each of the plurality of positive electrode tabs and an end of each of the plurality of negative electrode tabs are individually bonded to the positive electrode current collector and to the negative electrode current collector, respectively.