EqDP-004 P2-O3 Biphasic Layered Oxide Cathode – High-Rate Sodium-Ion Battery Positive Electrode

Overview of EqDP-004 Layered Oxide Cathode

The EqDP-004 is a high-performance layered oxide cathode material designed for sodium-ion batteries, featuring an equimolar P2/O3 biphasic structure with the chemical composition NaNi₀.₂₅Fe₀.₂₅Mn₀.₅O₂. This material delivers an initial specific capacity of 148 mAh/g and is engineered with a synergistic biphasic design that provides exceptional rate capability, making it an ideal cathode choice for sodium-ion battery applications requiring high power output and excellent dynamic performance, including energy storage systems, low-speed electric vehicles, e-bikes, and portable electronic devices.

Our comprehensive layered oxide portfolio covers the full spectrum of crystal structures—O3-type, P2-type, P2/O3 biphasic, single-crystal, and high-entropy variants—alongside diversified low-cost and high-performance modified systems based on Cu, Cr, Ti, and Mn chemistries, enabling tailored solutions for every application scenario.

Features of EqDP-004 Layered Oxide Cathode

• Synergistic P2/O3 Biphasic Design
  The equimolar biphasic structure combines the high capacity of the O3 phase with the superior structural stability and rate capability of the P2 phase, delivering a well-balanced performance profile with excellent rate capability.
• Equimolar Composition
  The balanced NaNi₀.₂₅Fe₀.₂₅Mn₀.₅O₂ composition leverages the synergistic effects of all three transition metals—nickel for capacity, iron for cost-effectiveness, and manganese for structural stability—achieving an optimal performance-to-cost balance.
• Superior Rate Performance
  The biphasic structure and optimized composition enable excellent kinetic performance, maintaining 80% capacity at 1C rate with outstanding high-rate discharge capability.
• Biphasic Synergy Technology
  The synergistic interaction between P2 and O3 phases enhances sodium-ion diffusion kinetics and structural reversibility, resulting in improved rate capability and cycling stability.
• Industry-Standard Manufacturing
  Produced via mature high-temperature solid-state and sol-gel processes, enabling ton-scale production with excellent batch-to-batch consistency and controlled manufacturing costs.
• Comprehensive Crystal Structure Engineering
  Our capabilities span O3-type, P2-type, P2/O3 biphasic, single-crystal, and high-entropy designs, enabling precise structural tailoring for diverse application requirements.

Technical Parameters of EqDP-004 Layered Oxide Cathode

Material Specifications

Physical Properties

Applications of EqDP-004 Layered Oxide Cathode

• Grid-Scale Energy Storage Systems
  Ideal for large-scale photovoltaic/wind power storage, grid peak shaving, and frequency regulation applications where long cycle life, high safety, and cost-effectiveness are paramount. The excellent rate capability also supports rapid response requirements.
• Low-Speed Electric Vehicles
  Suited for electric two-wheelers, three-wheelers, and low-speed four-wheel vehicles, delivering high energy density, fast-charging capability, and excellent low-temperature adaptability.
• Portable Electronic Devices
  Perfect for power banks, outdoor power supplies, and portable medical equipment, offering high voltage platform, high specific capacity, and extended cycle life.
• Specialty Applications
  Customizable formulations available for extreme environments including low-temperature, high-temperature, and high-safety scenarios such as military, aerospace, and deep-sea applications.

Package of EqDP-004 Layered Oxide Cathode

Standard Packaging

• Vacuum-sealed moisture-barrier packaging using aluminum-laminated film or PE bags, placed inside sturdy cartons.
• Packaging dimensions and weights are customizable based on customer requirements.

Storage & Handling

• Store in a dry, cool, well-ventilated environment away from moisture, heat, and contaminants.
• Avoid exposure to strong acids, alkalis, and oxidizing agents.
• Handle with care during transport to prevent packaging damage.
• Recommended shelf life: 12 months from date of manufacture under sealed, proper storage conditions.
• After opening, unused material should be immediately resealed and stored in a dry environment.

5 FAQs of EqDP-004 Layered Oxide Cathode

Q1: What makes the P2/O3 biphasic structure advantageous?
The biphasic structure leverages the complementary strengths of both phases—the high capacity of O3-type and the excellent rate capability and structural stability of P2-type. This synergy results in superior overall performance, particularly in rate capability and cycling stability.

Q2: How does the equimolar composition benefit performance?
The equimolar ratio of Ni:Fe:Mn (1:1:2) provides an optimal balance between capacity (from Ni), cost-effectiveness (from Fe), and structural stability (from Mn), delivering well-rounded electrochemical performance.

Q3: What is the recommended operating voltage range?
The recommended operating voltage range is 2.0 – 4.0 V vs. Na⁺/Na. Optimal rate performance and cycling stability are achieved within this window.

Q4: Can this material be used in both sodium-ion and lithium-ion batteries?
This material is specifically designed and optimized for sodium-ion battery systems. It is not recommended for lithium-ion battery applications.

Q5: What customization options are available?
We offer comprehensive customization including elemental composition, crystal structure, particle size distribution, specific surface area, tap density, and performance optimization for specific application requirements. Please contact our technical sales team for detailed discussions.