纳米氟化钇（Nano Yttrium Fluoride，CAS:13709-49-4，YF₃）是九朋新材料自主研发的高纯纳米级稀土氟化物粉体，型号CY-FHM50。产品为浅蓝色粉末，平均粒径50nm，比表面积30–50m²/g，纯度≥99.9%。不溶于水，难溶于盐酸、硝酸、硫酸，可溶于高氯酸，具有一定吸湿性但在空气中性质稳定，可根据客户需求定制其他粒度规格。

在红外光学镀膜领域，纳米氟化钇因宽带隙特性在紫外至红外宽光谱范围内保持高透射率，是制备干涉滤光片和红外光学镀膜元件中低折射率材料的理想选择。随着红外技术在探测、成像、传感等新兴领域的快速发展，纳米YF₃作为高质量红外薄膜核心材料，市场需求持续增长。

在新能源电池领域，纳米氟化钇作为固态电解质添加剂或界面修饰层材料表现突出。其核心作用包括：改善固态电解质与正负极之间的界面接触以降低界面阻抗；抑制锂枝晶生长以提高电池循环稳定性；拓宽电化学窗口以增强电解质的高压耐受性。因此，氟化钇在下一代高安全、高能量密度固态电池中具有重要应用潜力。

Nano Yttrium Fluoride

CAS No.：13709-49-4

English Name：Yttrium Fluoride

Molecular Formula：YF₃

Molecular Weight：145.90

Physicochemical Properties：Insoluble in water, hardly soluble in hydrochloric acid, nitric acid, and sulfuric acid, but soluble in perchloric acid. Slightly hygroscopic and stable in air.

Technical Specifications

ModelCY-FHM50

AppearanceLight blue powder

Average Particle Size (nm)50

Specific Surface Area (m²/g)30–50

Purity (%)≥99.9

Note: Customized particle sizes are available upon request.

Applications

Infrared Optical Coatings

With the rapid development of infrared technology and materials in emerging research and application fields, there is an increasing demand for stable, high-quality thin films in the infrared region. Yttrium Fluoride (YF₃) is widely used in infrared applications due to its excellent optical properties. In particular, its wide bandgap ensures high transmittance across a broad spectral range from ultraviolet to infrared. Therefore, YF₃ has become the preferred low-refractive-index material for interference filters and infrared optical coating components.

Solid-State Batteries

Yttrium Fluoride can be used as an additive for solid-state electrolytes or as an interfacial modification layer to enhance the performance of solid-state batteries. Its key functions include:

Improving interfacial contact between the solid electrolyte and electrodes, reducing interfacial resistance;

Suppressing lithium dendrite growth, thereby improving cycling stability;

Widening the electrochemical stability window and enhancing high-voltage tolerance.

These advantages make YF₃ a promising material for next-generation high-safety, high-energy-density solid-state batteries.

Packaging

Sample packaging: 100 g/bag, 500 g/bag, or 1 kg/bag.