ALL-SOLID BATTERY

To provide an all-solid battery with excellent cycle characteristics.SOLUTION: Provided is an all-solid battery that has an electrode structure having a positive electrode layer, a negative electrode layer, and a solid electrolyte layer arranged between the positive electrode layer and the negative...

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Bibliographic Details
Main Author GOTO IPPEI
Format Patent
LanguageEnglish
Japanese
Published 06.04.2023
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Summary:To provide an all-solid battery with excellent cycle characteristics.SOLUTION: Provided is an all-solid battery that has an electrode structure having a positive electrode layer, a negative electrode layer, and a solid electrolyte layer arranged between the positive electrode layer and the negative electrode layer. The electrode structure has an opposed part where the positive electrode layer and the negative electrode layer are opposed to each other. In a plan view along a thickness direction, the shape of the opposed part is a rectangle having long sides and short sides. The ratio of the length of the long side to the length of the short side is 1.5 or more. The solid electrolyte layer includes a nonwoven fabric, and a solid electrolyte arranged inside the nonwoven fabric. In the plan view, an angle formed by a longitudinal direction in the opposed part and a fiber direction in the nonwoven fabric is 0° or more and 30° or less.SELECTED DRAWING: Figure 2 【課題】本開示は、サイクル特性が良好な全固体電池を提供することを主目的とする。【解決手段】本開示においては、正極層と、負極層と、上記正極層および上記負極層の間に配置された固体電解質層と、を有する電極構造体を備える全固体電池であって、上記電極構造体は、前記正極層および前記負極層が対向する対向部を有し、厚さ方向に沿った平面視において、上記対向部の形状は、長辺および短辺を有する矩形であり、上記短辺の長さに対する上記長辺の長さの割合が、1.5以上であり、上記固体電解質層は、不織布と、上記不織布の内部に配置された固体電解質と、を含有し、上記平面視において、上記対向部における長手方向と、上記不織布における繊維方向との角度が、0°以上30°以下である、全固体電池を提供することにより、上記課題を解決する。【選択図】図2
Bibliography:Application Number: JP20210156540