SMART-ReBAT (LLM-Assisted Simulation for Battery Manufacturing and AI-Driven Disassembly & Recycling) is a 36-month, €2.09 M bilateral Sweden–Korea project under the EUREKA SMART Cluster. The project develops an integrated decision-support framework for the European battery value chain that unites EU regulatory pull with Korean industrial readiness, addressing a market and capability gap that neither side can close alone. The European side brings the EU Battery Regulation (Regulation (EU) 2023/1542), recycled-content mandates from 2031 (16% cobalt, 6% lithium, 6% nickel), Extended Producer Responsibility, and the digital Battery Passport. The Korean side brings industrially mature Pack-Module-Cell disassembly automation, direct-recycling chemistry that preserves cathode crystal structure, and AI-based recycling-process monitoring. SMART-ReBAT couples them through five tightly interconnected outputs: (i) an LLM-assisted simulation modelling and interaction library on top of commercial DES platforms; (ii) an AI- and DT-based virtual planning and validation toolkit for Pack-Module-Cell battery disassembly, integrated above existing Korean Physical-AI execution; (iii) an AI-based monitoring system for cell-to-material direct recycling at industrial pilot scale; (iv) a systematic bidirectional consultative feedback exchange between forward (manufacturing, design) and reverse (disassembly, recycling) value chains; and (v) two coordinated industrial demonstrators — battery-factory internal logistics in Sweden and battery disassembly + direct recycling in South Korea. On the Swedish side, the project targets internal logistics in battery factories, a domain that remains less automated and more manual than cell, module, and pack assembly. LLM-assisted simulation lowers the simulation-expertise barrier and improves productivity, energy efficiency, and reconfiguration speed. On the Korean side, AI- and DT-based virtual-first workflows configure and validate disassembly approaches digitally before physical execution, and AI-based monitoring tracks recovery rate, residual purity, and process anomalies during direct recycling. Cross-domain feedback routes design and operational requirements forward from European OEMs to the Korean teams, and disassembly and recycling insights back to the OEM design authority to inform design-for-disassembly updates and EPR-relevant decisions. The eight-partner bilateral consortium combines KTH Royal Institute of Technology (coordinator), Virtual Manufacturing AB, Scania CV AB, and TRATON on the Swedish side, with the Korea Automotive Technology Institute (KATECH, Korean coordinator), Sungkyunkwan University, THOTH Inc., and ABR Co., Ltd. on the Korean side. The project builds on prior KTH–SKKU collaboration in the EUREKA SMART projects C-PALS and Dynamic SALSA, extending that established bilateral partnership into the battery domain. Coordinated industrial demonstrators advance outputs from TRL 3-4 to TRL 5-6 within 36 months. The expected impact is a regulation-ready, resource-efficient battery value chain that supports the EU Battery Regulation timeline (2027–2031), strengthens European autonomy under the Critical Raw Materials Act, and aligns with the Korean K-Battery industrial strategy.