It is aimed to develop a Li-Ion battery to meet the energy needs of the sensor reading units, software, communication and power management-based neurotechnological system of the innovative motor-driven ankle prosthesis prototype to be developed for individuals who have challenges such as limb amputation, stroke, cerebral palsy, MS, Parkinson's. During the battery development study for smart prosthesis, ASPİLSAN will carry out solid-state new-generation battery development studies with Boğaziçi University and will gain gains for the reflection of innovative and future energy storage products to the market and for Turkey to be at the forefront of international competition in this field. It is aimed that these developments will be used in advanced versions of smart prostheses, exoskeletons, and similar movement support/rehabilitation devices and will be groundbreaking in other industrial branches. The designed battery will also have an energy harvesting feature and will have a different feature than the products on the market. With the technological gain to be obtained, experience will be gained in battery integration in devices with increasing market shares.