Layer oxygen route

Our VPO series sodium-ion layered oxide products are developed based on an advanced layered oxide technology platform. Through precise and streamlined doping, coating, and sintering process optimization, we have created a variety of product models to meet the demanding requirements of different application scenarios.

Email:

kongdeyu@vastna.cn

Phone:

+86 15796287939

VPO Product Introduction

Crystal structure diagram of layered oxide cathode materials for sodium-ion batteries

Introduction to the First-Generation VPO-1A Product

　　The technology for the first-generation product has now reached maturity. By employing multi-element doping, incorporating inert materials, and modifying the surface of fast-ion-conducting substances, we have successfully constructed complex multi-scale interfaces, enabling the development of high-performance O3-type sodium-ion battery cathode materials based on layered transition-metal oxides. These materials are currently being shipped in bulk.

　　Main performance: The specific capacity is 135–140 mAh/g; the powder compaction density is ≥3.2 g/cm³. ³ ; Moisture ≤ 500 ppm; D50 = 4–8 μm; Tapped density ≥ 2 g/cm³ ³。

　　Main features: High energy density, long cycle life, excellent air stability, and superior processability;

　　Application areas: Suitable for most sodium-ion battery application scenarios, such as general-purpose energy storage and electric two-wheeled vehicles.

Figure 1. SEM image

Figure 2. XRD pattern

Figure 3. First-week charge-discharge curve.

Introduction to the Second-Generation VPO-2A Product

　　We have now completed the technological development of the second-generation product. Building on the VPO-1A platform, we have further enhanced the energy density while maintaining excellent overall performance. We have begun ramping up for mass production and are currently at the industry’s leading position.

　　Main performance indicators: The specific capacity is 152–155 mAh/g, and the powder compaction density is ≥3.3 g/cm³. ³ ; Moisture ≤ 500 ppm; D50 = 4–8 μm; Tapped density ≥ 2 g/cm³ ³。

　　Main features: High energy density, excellent rate capability and cycle performance, as well as outstanding high-voltage and high- and low-temperature performance.

　　Application areas: Suitable for fields such as consumer electronics, special power supplies, and construction machinery.

Figure 1. SEM image

Figure 2. XRD pattern

Figure 3. First-week charge-discharge curve.

Third-generation VPO product

　　Currently under development.

　　Main performance: The specific capacity is above 152–155 mAh/g, and the tap density is ≥3.4 g/cm³. ³ Currently undergoing continuous verification.

Sodium iron phosphate pyrophosphate (NFPP) cathode material

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