ELECTRODE FOR ALL-SOLID-STATE BATTERY, ALL-SOLID-STATE BATTERY, AND METHOD OF PRODUCING ELECTRODE FOR ALL-SOLID-STATE BATTERY

• Main Author: MINAMI KEIICHI
• Format: Patent
• Language: English; Japanese
• Published: 30.04.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To form an ion conduction path that is connected three-dimensionally within an active material layer.SOLUTION: An electrode for an all-solid-state battery comprises an active material layer. The active material layer includes an active material, a first solid electrolyte, and a second solid electrolyte. The active material, the first solid electrolyte, and the second solid electrolyte satisfy a relationship of the following expression (1) "G2<G1<GA". GA represents a compressive elastic modulus of the active material. G1 represents a compressive elastic modulus of the first solid electrolyte. G2 represents a compressive elastic modulus of the second solid electrolyte. Further, the active material and the first solid electrolyte satisfy a relationship of the following expression (2) "0.41rA<r1". rA represents a particle radius of the active material. r1 represents a particle radius of the first solid electrolyte.SELECTED DRAWING: Figure 1 【課題】活物質層内に３次元的に繋がるイオン伝導パスを形成すること。【解決手段】全固体電池用電極は、活物質層を含む。活物質層は、活物質、第１固体電解質、および第２固体電解質を含む。活物質、第１固体電解質、および第２固体電解質は、式（１）「Ｇ2＜Ｇ1＜ＧA」の関係を満たす。ＧAは、活物質の圧縮弾性率を示す。Ｇ1は、第１固体電解質の圧縮弾性率を示す。Ｇ2は、第２固体電解質の圧縮弾性率を示す。さらに、活物質および第１固体電解質は、式（２）「０．４１ｒA＜ｒ1」の関係を満たす。ｒAは、活物質の粒子半径を示す。ｒ1は、第１固体電解質の粒子半径を示す。【選択図】図１