▎ 摘　　要

NOVELTY - A high-capacity surface mount device (SMD)-type all-solid-state battery comprises a stacked press component (110), an external electrode (120) formed on one side of the press component, and an external electrode (130) formed on the other side of the press component. The stacked press component contains positive electrode sheets (111) laminated in order and pressed so that an end of one side of each is connected to the electrode (120), negative electrode sheets (112) positioned between the positive electrode sheets crosswise with respect to the positive electrode sheets, and electrolyte sheets (113) positioned between the positive electrode sheets and the negative electrode sheets. The negative electrode sheets are laminated in order and pressed so that an end of the other side of each is connected to the electrode (130). The electrolyte sheets are laminated in order and pressed. USE - High-capacity surface mount device-type all-solid-state battery e.g. lithium ion secondary battery. Uses include but are not limited to information technology (IT), internet of things (IoT), smart household appliances and electric vehicle. ADVANTAGE - The battery is easily installed on the printed circuit board, and has improved energy density and high capacity by forming the buffer sheet at the interface between the positive electrode and solid electrolyte or between the negative electrode and solid electrolyte. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of the battery. Stacked press component (110) Positive electrode sheets (111) Positive electrode active material sheets (111a,11c) Current collectors (111b,112b) Insulating material sheets (111d,112d) Negative electrode sheets (112) Negative electrode active material sheets (112a,112c) Electrolyte sheets (113) Solid electrolyte sheet (113a) Interface buffer sheets (113b,113c) External electrodes (120,130)