Adhesive and sealant in EV battery refers to the specialized bonding and sealing compounds used during cell, module and pack assembly to ensure mechanical integrity, thermal management and protection against moisture and vibration. These materials are pivotal for the reliability and safety of electric‑vehicle batteries, directly influencing vehicle range, lifespan and crash performance. The Adhesive and sealant in EV battery market size was approximately $1.9 billion in 2025, and analysts project a CAGR of about 12% through the 2026‑2033 market forecast, pushing the market toward $5.5 billion by 2033. Growth is underpinned by accelerating EV adoption, stringent safety regulations, and rapid advances in high‑performance polymer chemistries. Key forces shaping the industry include: 1) Technology shifts toward high‑temperature epoxy and conductive silicone formulations; 2) Regulatory pressure mandating stricter leak‑proof and fire‑resistant standards; and 3) Supply‑chain dynamics as battery manufacturers consolidate and demand consistent, low‑VOC adhesive supplies. Asia‑Pacific remains the largest region, driven by China’s massive EV production, while Europe is emerging as the fastest‑growing market thanks to aggressive decarbonisation policies and premium‑EV launches.