The BDA platform delivers a digital solution that spans the entire industry chain. The platform comprises three core modules: 1) Material Discovery Module: Integrates artificial intelligence (AI) with quantum chemistry to accelerate the discovery of novel positive, negative, and electrolyte materials. This module delivers high-efficiency and high-accuracy computational tools for rapid material screening and property prediction.2) AI-assisted Cell Design Module: Leverages intelligent mesh generation and machine learning techniques to expedite the solution of multi-variable finite element equations. It enables accurate simulation of real-world lithium-ion battery performance under diverse operating conditions.3) Battery Management System Application Module: Combines data-driven approaches with physics-based models to non-invasively assess internal cell degradation. Using only a few charge–discharge cycles, this module can reliably diagnose aging mechanisms within battery cells without causing damage.These components collectively establish a battery “digital passport” protocol, enabling cross-industry-chain forward and reverse co-design of materials and devices.