A cell module (7; 7a), comprising a plurality of unit cells (10; 10a) that are stacked, the unit cell (10; 10a) comprising: an electrode body including a membrane electrode assembly and a pair of gas diffusion layers (228, 229) placed on each surface of the membrane electrode assembly; a frame placed along an outer periphery of the electrode body to surround the electrode body; a first separator (60; 60a) and a second separator (70; 70a) bonded to the frame such as to have the electrode body and the frame placed therebetween, wherein the first separator (60; 60a) is located on one side of the membrane electrode assembly and the second separator (70; 70a) is located on the other side of the membrane electrode assembly, characterized in that a first bonding area is provided as an area where the first separator (60; 60a) and the frame are bonded to each other using an adhesive, a second bonding area is provided as an area where the second separator (70; 70a) and the frame are bonded to each other using an adhesive, and a third bonding area is provided as an area where separators (60, 70; 60a, 70a) included in adjacent unit cells (10; 10a) are bonded to each other using an adhesive, with respect to at least one unit cell (10; 10a) out of the plurality of unit cells (10; 10a), when the at least one unit cell (10; 10a) is viewed along a stacking direction of the plurality of unit cells (10; 10a), at least one bonding area out of the first to the third bonding areas (80a, 80b, 80c) of the unit cell (10; 10a) is formed at a position that does not overlap with another bonding area of the unit cell (10; 10a), and the at least one unit cell (10; 10a) has a first bonding pattern in which, when the at least one unit cell (10; 10a) is viewed along the stacking direction, the first bonding area and the second bonding area are formed at positions that do not overlap with each other. an electrode body including a membrane electrode assembly and a pair of gas diffusion layers (228, 229) placed on each surface of the membrane electrode assembly; a frame placed along an outer periphery of the electrode body to surround the electrode body; a first separator (60; 60a) and a second separator (70; 70a) bonded to the frame such as to have the electrode body and the frame placed therebetween, wherein the first separator (60; 60a) is located on one side of the membrane electrode assembly and the second separator (70; 70a) is located on the other side of the membrane electrode assembly, characterized in that a first bonding area is provided as an area where the first separator (60; 60a) and the frame are bonded to each other using an adhesive, a second bonding area is provided as an area where the second separator (70; 70a) and the frame are bonded to each other using an adhesive, and a third bonding area is provided as an area where separators (60, 70; 60a, 70a) included in adjacent unit cells (10; 10a) are bonded to each other using an adhesive, with respect to at least one unit cell (10; 10a) out of the plurality of unit cells (10; 10a), when the at least one unit cell (10; 10a) is viewed along a stacking direction of the plurality of unit cells (10; 10a), at least one bonding area out of the first to the third bonding areas (80a, 80b, 80c) of the unit cell (10; 10a) is formed at a position that does not overlap with another bonding area of the unit cell (10; 10a), and the at least one unit cell (10; 10a) has a first bonding pattern in which, when the at least one unit cell (10; 10a) is viewed along the stacking direction, the first bonding area and the second bonding area are formed at positions that do not overlap with each other.