Application segmentation delineates the functional niches that drive demand for Lithium‑ion Batteries for Medical and Healthcare Device segmentation. Diagnostic imaging systems—such as MRI, CT, and PET scanners—represent the largest share, accounting for roughly 35 % of market revenue due to high power draw and stringent reliability standards. Therapeutic devices, including infusion pumps, dialysis machines, and laser treatment units, contribute about 25 % as they require steady discharge cycles and safety‑critical performance. Monitoring devices—patient‑vital‑sign monitors, bedside alarms, and telemetry units—capture 20 % of the market, reflecting widespread hospital adoption and the need for long‑life, low‑maintenance power sources. Wearable health technology, encompassing fitness trackers and continuous glucose monitors, holds 15 % of the market, driven by consumer adoption and miniaturization trends. Finally, implantable devices such as pacemakers and neurostimulators occupy a modest 5 % share, constrained by stringent size, biocompatibility, and regulatory requirements, yet offering high‑margin niche growth.