Chemitox Co., Ltd. (Headquarters: Ota-ku, Tokyo; President and CEO: Koichi Nakayama) announced that its technology development project, "Development of Freely Installable Space Power Systems Using Flexible Solid-State Batteries," has been selected for the "Heat and Devices" domain of the "SX Core Area Development Research (SX-ARK)" program, part of the Space Strategy Fund initiative promoted by the Japan Aerospace Exploration Agency (JAXA). This technology development project aims to realize a new power supply configuration for advanced space systems, such as small satellites and future spacesuits, to maximize onboard functionality under limited volume and mass conditions. By utilizing flexible solid-state batteries, the project seeks to create a structure that allows batteries to be placed in areas that have been difficult to utilize previously, such as curved surfaces and gaps within the spacecraft chassis, thereby improving payload capacity and expanding design freedom. [Selection Summary] Program Name: Space Strategy Fund Technology Development Theme: SX Core Area Development Research "SX-ARK" (Heat and Devices) Technology Development Project Name: Development of Freely Installable Space Power Systems Using Flexible Solid-State Batteries Implementing Organization (Lead Organization): Chemitox Co., Ltd. Research Representative: Taiki Kitta [Background of Research and Development] Advanced space systems, including small satellites and spacesuits, require designs that maximize onboard functionality within limited volume and mass. However, conventional battery systems have limitations in placement flexibility due to cell shape and fixed structures, leaving unused space within spacecraft chassis as a challenge. Against this backdrop, Chemitox aims to leverage the advantages of solid-state batteries, which offer excellent safety and a wide operating temperature range, to expand the design freedom of spacecraft and transition to a new design philosophy that considers p