Ternary and phosphate cathode stoichiometry: BYDRecent Research Landscape
Inconsistent crystal structures in cathode synthesis lead to poor ionic conductivity and low cycle life. Precise control over the chemical precursors and thermal processing stabilizes the olivine phase to ensure high energy density.
What technical problems is BYD addressing in Ternary and phosphate cathode stoichiometry?
Irreversible capacity loss
(65)evidences
First-cycle lithium depletion limits energy density. Compensating for lost ions prevents rapid capacity fade and improves cycle life.
Low volumetric energy density
(61)evidences
Insufficient volumetric and gravimetric capacity in standard cathode configurations. Increasing energy density is critical for extending vehicle range and reducing equipment footprint.
Surface structural instability
(57)evidences
Parasitic side reactions at the electrode-electrolyte interface lead to structural degradation and rapid capacity fading. Mitigating these instabilities prevents premature battery failure and improves cycle life.
Low electronic conductivity
(31)evidences
Lithium iron phosphate suffers from poor charge carrier mobility and slow diffusion kinetics. Overcoming this transport limitation is essential for high-rate discharge performance and efficient energy delivery.