Method for manufacturing a button cell comprising a housing with a cup and a lid respectively defining two poles of the cell and assembled with an adhesive joint; said method comprising the following steps: - providing a first part and a second part intended to respectively form the lid and the cup of the housing, said second part comprising a base connected to a side wall (3b,3c) with an open end located on the side opposite the base, the section at the open end of the side wall (3b,3c) being greater than the section of the first part so that said first part can be inserted through the open end, said first part comprising a central area and an edge area surrounding the central area, said edge area comprising a zone inclined or perpendicular with respect to a center axis of the housing defined as an axis Z substantially perpendicular to the base of the second part; - filling the first part and/or the second part with at least a solid active material; - applying a layer of adhesive on said inclined or perpendicular zone of the edge area of the first part; - then, inserting the first part into the open end of the second part, the layer of adhesive on said inclined or perpendicular zone of the edge area being finally turned towards the open end of the second part; - then, closing the housing by bending an upper portion of said side wall (3b,3c), located on the side of said open end, on said inclined or perpendicular zone of the edge area provided with the layer of adhesive so that said upper portion of the second part is finally also inclined or perpendicular with respect to said center axis and substantially covers the adhesive layer applied on the inclined or perpendicular zone of the edge area of the first part; - then, curing said layer of adhesive to form the adhesive joint which seals and insulates the housing without additional insulator arranged between said edge area of the first part and said base of the second part. - providing a first part and a second part intended to respectively form the lid and the cup of the housing, said second part comprising a base connected to a side wall (3b,3c) with an open end located on the side opposite the base, the section at the open end of the side wall (3b,3c) being greater than the section of the first part so that said first part can be inserted through the open end, said first part comprising a central area and an edge area surrounding the central area, said edge area comprising a zone inclined or perpendicular with respect to a center axis of the housing defined as an axis Z substantially perpendicular to the base of the second part; - filling the first part and/or the second part with at least a solid active material; - applying a layer of adhesive on said inclined or perpendicular zone of the edge area of the first part; - then, inserting the first part into the open end of the second part, the layer of adhesive on said inclined or perpendicular zone of the edge area being finally turned towards the open end of the second part; - then, closing the housing by bending an upper portion of said side wall (3b,3c), located on the side of said open end, on said inclined or perpendicular zone of the edge area provided with the layer of adhesive so that said upper portion of the second part is finally also inclined or perpendicular with respect to said center axis and substantially covers the adhesive layer applied on the inclined or perpendicular zone of the edge area of the first part; - then, curing said layer of adhesive to form the adhesive joint which seals and insulates the housing without additional insulator arranged between said edge area of the first part and said base of the second part.