Nova Core: A Polymeric Organic Multi-Redox Energy Storage System with 500–700 Wh/kg beyond the Solid-State Limit

Headline. Nova Core describes a cell architecture for electrochemical energy storage that derives, from six physically established sub-principles, a pack-level energy density beyond that of today's discussed solid-state batteries. The resulting target values lie between 500 and 700 Wh/kg, with a cycle life of ≥ 100,000 full cycles and an operating window from −40 °C to +120 °C. Active material. An organic multi-redox copolymer of phenothiazine and anthraquinone units (C₄₃H₂₇NO₄S, 653.76 g/mol) with six transferable electrons per monomer, a theoretical specific capacity of 245.9 mAh/g, and an average cell voltage of 2.88 V — containing no cobalt, nickel, or manganese. Scientific basis. The six underlying principles — multi-electron quinones, bipolar solid-state stacking, polymer gel electrolytes, mechanically reinforced dendrite suppression, ionic liquid-crystalline electrolytes, and structural battery composites — are each individually documented in the literature (Yao 2017; Choi 2022; Zhou 2025; Högberg 2016; Asp 2021; Wang 2026). Their simultaneous implementation in a single cell architecture is not described in the reviewed literature as of October 2026. Contribution. All six components are industrially producible today. This working paper discloses: the physical foundation of the architecture, the derivation of the energy-density formula E_Pack = C_spec · U_mean · η_Material · f_Pack · f_bipolar, a multi-stage development roadmap from material synthesis to pilot cell, a self-critical limitations and risk assessment. Implementation-critical synthesis or formulation recipes are deliberately not disclosed.