Design Blueprint: Spin-Polarisation Battery: Stored Energy and Discharge Power of an Aligned-Spin Cell

Design blueprint derived from the source paper (DOI 10.5281/zenodo.24125718): The device is an energy storage cell that holds its charge as aligned nuclear spin in a solid working body. Status: DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT. All numbers are simulated values from the source paper's computation, deposited with this blueprint as compute.py and results.json. AI-use disclosure: Dave, an AI research system, assisted with the computation and drafting under the author's direction; author of record William Alexander Aldred.