P2 cathode sodium-ion battery positive electrode with 93.50% active material proportion and 3.63mg/cm² current collector areal density in P2 type crystal structure

Sodium-ion battery positive electrode P2, Sodium nickel manganese titanium oxide (NaNiMnTiOx), single/double-sided coating, mass production battery grade, customizable

Crystal Structure (P2 Type):

It belongs to a layered structure. Transition metals (M/T) and oxygen atoms form a close-packed "framework", and sodium ions are located in the layered gaps between these frameworks. The "P" indicates that the layered gaps where sodium ions reside have a trigonal prismatic coordination. The "2" indicates that a single unit cell contains two layers of such transition metal-oxygen layers.

Properties:

• High Operating Voltage: Especially when containing the Mn³⁺/Mn⁴⁺ redox couple, it can provide a high average voltage of ~3.6 V.
• Excellent Rate Performance: The two-dimensional diffusion channels of the P2 structure are conducive to the rapid migration of sodium ions, supporting fast charging and discharging.
• High Theoretical Capacity: Based on redox couples such as Ni²⁺/Ni⁴⁺, it can provide a relatively high reversible capacity.

Technical Specifications

Electrochemical Performance & Storage

Batteries with P2 cathode deliver high energy density (over 280Wh/kg), making them suitable for demanding applications. Requires storage in dry, low-humidity environments to prevent performance degradation from CO₂ and H₂O reactions during charging.

Why Choose Our NCM90 Cathode Sheets?

• Enhanced Battery Life: Reduces delamination risks during cycling
• Process Compatibility: Suitable for slurry coating, calendering, and stacking
• Quality Consistency: Strict ±1μm tolerance control for industrial-scale production