Cathode active material morphology: BASFRecent Research Landscape
Surface degradation and electrolyte side reactions during cycling lead to rapid capacity loss. These innovations utilize multi-step deposition to engineer protective interfacial layers that stabilize the cathode chemistry.
What technical problems is BASF addressing in Cathode active material morphology?
Surface degradation and instability
(52)evidences
Mechanical degradation and surface reactivity of particulate precursors lead to capacity fade. Mitigating these structural failures improves cycle life and electrochemical stability.
Surface phase instability
(24)evidences
Unstable surface species like gamma-NiOOH and residual lithium carbonates cause electrolyte decomposition and gas evolution. Eliminating these impurities prevents capacity fading and improves battery safety.
Structural instability during cycling
(22)evidences
High-capacity cathode materials suffer from mechanical strain and surface degradation during charge-discharge cycles. Mitigating these failure modes prevents capacity fade and extends battery lifespan.
Interfacial electrochemical instability
(16)evidences
Mechanical strain at grain boundaries causes structural instability and side reactions with electrolytes. Mitigating these failures prevents capacity fade and improves cycle life.