The global battery packaging market was valued at USD 39.8 billion in 2025 and is projected to reach USD 118.7 billion by 2035, expanding at an 11.57% CAGR from 2026 to 2035. Demand is being supported by electric vehicle production, grid-scale energy storage, renewable-energy deployment and higher-energy-density batteries. Packaging protects cells and packs from mechanical impacts, overheating, moisture and chemicals, while newer battery architectures are increasing requirements for thermal management, structural performance and design flexibility. Cardboard and paperboard held 61.23% of the market in 2025, while cylindrical casing accounted for 55.28%. Cell and pack packaging represented 63.38%, lithium-ion batteries 39.65% and electric vehicles the leading end-use segment. Asia Pacific held 41.28% of global revenue, while North America accounted for about 20%. The U.S. market was valued at approximately USD 5.97 billion in 2025 and is projected to reach approximately USD 17.73 billion by 2035 at an 11.5% CAGR. The release also highlights CATL's 2026 Kirin Battery system and Nefab Group's expanded North American capabilities in Mexico as examples of evolving packaging designs and supply-chain investment.