Fluorophosphate and pyrophosphate polyanion scaffolds: BYDRecent Research Landscape
Low ionic conductivity and structural instability in sodium-ion cathodes limit battery cycle life and power density. These innovations engineer specific crystal lattice substitutions and carbon-coating interfaces to stabilize charge transport.
What technical problems is BYD addressing in Fluorophosphate and pyrophosphate polyanion scaffolds?
Low intrinsic electronic conductivity
(45)evidences
Polyanion frameworks suffer from poor charge carrier mobility which limits rate capability. Overcoming this transport bottleneck allows for high-power battery performance.
Interfacial side reactions
(40)evidences
Structural degradation and surface instability during charge-discharge cycles limit battery lifespan. Mitigating these failure modes ensures long-term capacity retention and safety in high-demand electrical devices.
Low volumetric energy density
(25)evidences
Low volumetric and gravimetric capacity in polyanion-based systems limits operational range. Addressing this bottleneck allows for more compact and lightweight power storage solutions.
Anode interfacial mechanical instability
(5)evidences
High impedance at the solid-solid interface between polyanion cathodes and solid electrolytes limits charge transfer. Reducing this resistance is necessary to achieve viable power density in all-solid-state systems.