The purpose of the present invention is to provide a wearable patch with which it is possible, after use, to reliably stop the supply of power from a cell and directly dispose of the wearable patch. Another purpose of the present invention is to obtain a sheet-shaped cell with which it is possible, after use, to reliably stop the supply of power and safely dispose of the sheet-shaped cell. The wearable patch disclosed in the present application is a wearable patch 100 worn on the body, wherein the wearable patch 100 is provided with: a functional element 50; a drive circuit unit 20 for causing the functional element to operate; and a cell 10 serving as a power supply, a cutting facilitation means 70 being formed for allowing a prescribed portion of the wearable patch to be cut with a force of 200 N or less and stopping the supply of power from the cell to the drive circuit unit. The sheet-shaped cell disclosed in the present application is a sheet-shaped cell 500 in which a power generation element including a sheet-shaped positive electrode 520 and a sheet-shaped negative electrode 530 is sealed in a sheet-shaped exterior body 560, wherein a cutting facilitation means 570 is formed for allowing a prescribed portion of the sheet-shaped cell to be cut with a force of 200 N or less and stopping the supply of power from the cell to the exterior.L'objet de la présente invention est de fournir un patch portable avec lequel il est possible, après utilisation, d'arrêter de manière fiable l'alimentation en énergie d'une cellule et d'éliminer directement le patch portable Un autre but de la présente invention est d'obtenir une cellule en forme de feuille avec laquelle il est possible, après utilisation, d'arrêter de manière fiable l'alimentation en énergie et d'éliminer en toute sécurité la cellule en forme de feuille. Le patch portable selon la présente invention est un patch portable 100 sur le corps, le patch portable 100 comprenant : un élément fonctionnel 50; une unité