METHOD FOR MANUFACTURING ALL-SOLID BATTERY, AND ALL-SOLID BATTERY

To provide a method for manufacturing an all-solid battery, by which a negative electrode layer can be suppressed from sliding down from a piece of negative electrode foil.SOLUTION: A method for manufacturing an all-solid battery 10 which has a piece of negative electrode foil 1, a negative electrode layer 2, a solid electrolyte layer 3 and a positive electrode layer 4 laminated in this order, and in which the solid electrolyte layer and the negative electrode layer are larger than the positive electrode layer in area comprises: a first press step of roll-pressing a first laminate, which is a laminate arranged by laminating the piece of negative electrode foil and the negative electrode layer, or a laminate arranged by laminating the piece of negative electrode foil, the negative electrode layer and the solid electrolyte layer so that an adhesion force between the piece of negative electrode foil and the negative electrode layer becomes 30 N/cmor more to form a second laminate; a laminate forming step of using the second laminate to form a third laminate having the piece of negative electrode foil, the negative electrode layer, the solid electrolyte layer and the positive electrode layer; and a second press step of roll-pressing the third laminate with a linear pressure of 1.0 t/cm or more to form a fourth laminate.SELECTED DRAWING: Figure 1 【課題】負極箔からの負極層の滑落を抑制することが可能な、全固体電池の製造方法の提供。【解決手段】負極箔１、負極層２、固体電解質層３および正極層４がこの順で積層され、正極層の面積に比べて、固体電解質層および負極層の面積が大きい全固体電池１０の製造方法であって、負極箔および負極層が積層された積層体、または、上記負極箔、上記負極層および上記固体電解質層が積層された積層体である第一積層体に対し、上記負極箔と上記負極層との間の密着力が３０Ｎ／ｃｍ２以上となるようにロールプレスし、第二積層体を形成する第１のプレス工程と、上記第二積層体を用いて、上記負極箔、上記負極層、上記固体電解質層および上記正極層を有する第三積層体を形成する積層体形成工程と、上記第三積層体に対し、１．０ｔ／ｃｍ以上の線圧でロールプレスし、第四積層体を形成する第２のプレス工程と、を有する。【選択図】図１