2 ALL-SOLID-STATE SECONDARY BATTERY AND PRODUCTION METHOD THEREFOR

본 발명은, 양극 집전체(11)와 음극 집전체(21)의 사이에, 양극층(12), 고체 전해질층(32)및 음극층(22)이 적층되어 이루어지는 적층체(X), 및 이 적층체(X)의 주위에 배치됨과 아울러 적어도 고체 전해질층(32)과 접촉해서 양극층(12)과 음극층(22)을 전기적으로 절연하는 판모양의 절연부재(41)가 배치된 전고체 2차전지(1)로서, 절연부재(41)에 있어서의 적층체(X)와의 접촉 내측 가장자리부(4lb)를 외측의 판상부(41a)보다 두껍게 한 것이다. The present invention provides an all-solid-state secondary battery and a method for producing the same, wherein it is possible to prevent the collapse of a laminate due to a shearing force occurring in the peripheral portion of the laminate when the laminate is pressed in the production process, and therefore it is possible to prevent the occurrence of an internal short circuit. The present invention is the all-solid-state secondary battery (1) including a laminate (X) and a plate-shaped insulating member (41) both arranged between the positive electrode collector (11) and the negative electrode collector (21). The laminate (X) includes a positive electrode layer (12), a solid electrolyte layer (32), and a negative electrode layer (22) stacked together. The plate-shaped insulating member (41) is arranged around the laminate (X) and contacted at least with the solid electrolyte layer (32) to electrically insulate the positive electrode layer (12) and the negative electrode layer (22) from each other. In the insulating member (41), a contact inner edge portion (41b) contacted with the laminate (X) has a larger thickness than a plate-shaped portion (41a) positioned on the outer side.