Application‑wise, the market is categorized into automotive, consumer electronics, aerospace, and industrial segments. Automotive batteries, driven by electric‑vehicle volume growth, dominate with an estimated 45% share, as manufacturers require stringent leak control to meet safety standards. Consumer electronics, encompassing smartphones and wearables, represent 30% of the market; the high unit‑volume and rapid product cycles push demand for cost‑effective, high‑throughput detection solutions. Aerospace applications, though smaller in absolute terms, hold a disproportionate 15% share due to the critical safety and reliability requirements of aircraft‑grade lithium cells, favoring advanced mass‑spectrometry systems. The remaining 10% is allocated to industrial uses such as grid‑scale storage and robotics, where system robustness and long‑term reliability are paramount. This application‑focused market taxonomy clarifies how each sector’s performance requirements and production scales shape the overall market composition.