SOLID STATE BATTERY

• Main Author: GOTO IPPEI
• Format: Patent
• Language: English; Japanese
• Published: 05.04.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a solid state battery which has a high capacity maintenance rate and a low battery resistance even when using a solid electrolyte layer including a support medium.SOLUTION: A solid state battery 100 includes a positive electrode layer 16, a solid electrolyte layer, and a negative electrode layer 12 in order. The solid electrolyte layer includes: a first solid electrolyte layer 13 which is arranged adjacent to the positive electrode layer 16 or the negative electrode layer 12; and a second solid electrolyte layer 14 which is arranged adjacent to the first solid electrolyte layer 13. The first solid electrolyte layer 13 includes solid electrolyte, and the second solid electrolyte layer 14 which has a support medium with electron hole and the solid electrolyte. The second solid electrolyte layer is a sheet where the solid electrolyte is arranged on a surface of the support medium and in the electron hole.SELECTED DRAWING: Figure 1 【課題】支持体を含む固体電解質層を用いた場合であっても、容量維持率が高く、電池抵抗の低い固体電池を提供する。【解決手段】正極層１６、固体電解質層、負極層１２をこの順で有する固体電池１００であって、前記固体電解質層は、第１固体電解質層１３、第２固体電解質層１４を有し、前記第１固体電解質層１３は、前記正極層１６又は前記負極層１２に隣接して配置され、前記第２固体電解質層１４は、前記第１固体電解質層１３に隣接して配置され、前記第１固体電解質層１３は、固体電解質を含み、前記第２固体電解質層１４は、空孔を有する支持体、及び、前記固体電解質を含み、当該支持体の表面及び空孔内部に前記固体電解質が配置されているシートであることを特徴とする。【選択図】図１