ELASTIC SHEET FOR ALL-SOLID RECHARGEABLE BATTERIES AND ALL-SOLID RECHARGEABLE BATTERIES

The present invention relates to an elastic sheet for all-solid rechargeable batteries, and all-solid rechargeable batteries comprising same, the elastic sheet having a thickness of 100µm to 10 mm, a permanent strain at 45°C of less than 50%, a shock absorption rate of 50% or more during a ball drop (7g, 20 cm), and a compressive strength of 2.0 MPa to 6.0 MPa at a CFD of 70%. La présente invention concerne une feuille élastique pour batteries rechargeables tout solide, et des batteries rechargeables tout solide la comprenant, la feuille élastique ayant une épaisseur de 100 µm à 10 mm, une contrainte permanente à 45°C inférieure à 50%, un taux d'absorption des chocs de 50% ou plus pendant une chute de bille (7g, 20 cm), et une résistance à la compression de 2,0 MPa à 6,0 MPa à un CFD de 70%. 두께가 100 ㎛ 내지 10 mm이고, 45℃에서 영구 변형율이 50% 미만이며, 볼 드롭(7g, 20cm)시 충격 흡수율이 50% 이상이고, CFD 70%에서의 압축 강도가 2.0 MPa 내지 6.0 MPa인 전고체 이차 전지용 탄성 시트, 그리고 이를 포함하는 전고체 이차 전지에 관한 것이다.