Bulk-type all-solid-state lithium secondary battery

The purpose of the present invention is to provide a bulk-type all-solid-state battery having high heat resistance and high capacity. In order to solve the above-described problem, a bulk-type all-solid-state lithium secondary battery according to the present invention is characterized by being provided with a positive electrode having a positive electrode mixture layer, a negative electrode having a negative electrode mixture layer, and a solid electrolyte layer arranged between the positive electrode and the negative electrode, and is also characterized in that: at least one of the positive electrode mixture layer and the negative electrode mixture layer contains a lithium salt and a soft viscous crystal containing a pyrrolidinium cation represented by formula (1); and the content of the lithium salt relative to the total amount of the soft viscous crystal and the lithium salt is 0.1-20 mol%.