Views: 0 Author: Site Editor Publish Time: 2026-04-28 Origin: Site
In today's new energy wave sweeping the world, the energy density, cycle life and safety performance of power batteries have become the key to determining the success of the market. We are well aware that every small breakthrough in material technology may lead to a huge leap in end point applications. To this end, we are launching a new generation of core materials - battery-grade high-purity nano-lanthanum oxide, which aims to inject a strong "rare earth core" power into the research and development and manufacturing of new energy batteries.
Core Positioning: "Nano-scale Catalysts" for Battery Performance
Battery-grade nanometer lanthanum oxide is not a simple raw material addition, it is a precisely designed functional material. Its core function is to play a key "stabilizing, enhancing and catalyzing" role in the electrode material and interface through the unique "lanthanum element" chemical properties and "nano-size" surface effect. The specific functions are as follows:
1. Structural stabilizer: La exists in the structure of LaO8 dodecahedron in solid-state batteries, which is the main skeleton that constitutes the LLZO crystal. The ionic radius of La3 + (about 1.06 °) is larger than that of the Common Ni²⁺/Ni³⁺, Co³⁺, Mn3 +/Mn4 +. When La3 + enters the lattice, it forms a very strong La-O bond with the surrounding oxygen ions due to its large radius and high charge. This is like adding a thicker "load-bearing column" to the building structure, which significantly enhances the stability of the crystal skeleton. When the battery is deeply charged and discharged (especially at high voltage), the transition metal ions in the lithium layer (such as Ni2 +, the ionic radius is close to that of Li +) are easy to migrate to the lithium check point (cation mixing), and initiate an irreversible phase transition from the layered structure to the disordered spinel phase or even the rock salt phase, resulting in capacity decay. The "pinning" effect of La3 + can effectively "anchor" the lattice and inhibit the migration of transition metal ions, thereby significantly slowing down the phase transition process. Under high voltage, the unstable lattice is prone to the precipitation of oxygen, which brings potential safety hazards. Stable La-O bond can enhance the precipitation energy barrier of the lattice oxygen and inhibit the release of oxygen, thereby improving the thermal stability and safety of the battery.
2. Ion conduction accelerator: According to the principle of charge balance, the introduction of high valence state La3 + will force the lattice to produce lithium ion vacancies (defects). Lithium ion vacancies are a necessary channel for lithium ion transport, and the increase of vacancy concentration directly means that the migration path of lithium ions increases and the migration barrier decreases, thereby significantly improving the ionic conductivity.
3. Interface buffering agent: The introduction of nano-lanthanum oxide on the surface of the positive electrode material can improve its interface contact with the solid electrolyte and relieve interfacial stress. During charging and discharging, the positive electrode material will expand and contract, generating mechanical stress with the rigid solid electrolyte, resulting in poor contact or even rupture. As a functional "buffer layer", the nano-lanthanum oxide layer can effectively relieve stress and maintain physical contact at the interface. In addition, by promoting the uniform migration of lithium ions, the nano-lanthanum oxide modified layer helps to achieve uniform deposition of lithium on the negative electrode side, thereby effectively inhibiting the growth of lithium dendrites and improving safety.
We control the quality of each batch of products to rigorous standards. The core physical and chemical indicators, values, and key parameters are as follows:
characteristic index | specific parameters | core value |
purity | 99.995% (4N5) and above | Effectively avoid harmful impurities such as Fe, Cu, and Ni from damaging the electrochemical environment, and ensure the long-term cycle stability of the battery |
particle size | 20-50 nm | Specific surface area > 30 m ²/g, ensuring high dispersion, high reactivity in electrode materials, and avoiding agglomeration failure |
crystal structure | hexagonal system | The crystal structure is complete and the thermal stability is excellent. |
physicochemical stability | Insoluble in water, soluble in acid | Excellent chemical stability and high temperature stability, able to adapt to the harsh environment of battery preparation and operation |
Table 1: Cell-grade nano-lanthanum oxide core physical and chemical indicators and value description table
Figure 1: Microscopic morphology of battery-grade nano-lanthanum oxide SEM
Figure 2: Battery-grade nanometer lanthanum oxide laser particle size analysis report
We use advanced "homogeneous precipitation-calcination process", combined with unique "morphology and particle size control technology", to achieve whole-process quality control from raw materials to finished products. The specific production process is as follows:
1. Start with high-purity raw materials: use high-purity lanthanum chloride solution as raw material to ensure product purity from the source.
2. Controllable precipitation process: By precisely controlling the pH value, concentration, temperature and flow rate of the precipitant, the precursor lanthanum carbonate or lanthanum hydroxide is generated to ensure that the initial particle morphology and size are controllable.
3. Precision low-temperature calcination: Low-temperature calcination is carried out under programmed temperature control to achieve complete conversion of the precursor to lanthanum oxide, while effectively inhibiting the sintering growth of nanoparticles, ensuring uniform particle size and good dispersion of the product.
4. The whole process is strictly controlled: the entire production process is carried out in a clean environment, and the whole process is monitored by laser particle size analyzer, BET specific surface area analyzer, XRD, ICP-MS and other equipment to ensure the uniformity and stability of product batches.
The application of battery-grade nano-lanthanum oxide to lithium-ion batteries (cathode material doping/solid electrolyte modification) can achieve multi-dimensional performance improvement. The specific application scenarios and values are as follows:
1. Positive electrode material doping/coating agent:
(1) Enhance structural stability: When incorporated into the lattice of cathode materials such as lithium nickel-cobalt-manganate or lithium cobalt oxide, the strong La-O bond can support the layered structure like a "steel bar", effectively inhibiting the phase transition and cation mixing during charging and discharging, and slowing down the collapse of the material structure.
(2) Significantly extend the cycle life: by nanoscale coating on the surface of the material, a protective layer is formed, reducing the side reactions between the active material and the electrolyte, and inhibiting the dissolution of transition metal ions, so that the battery can maintain a high capacity retention rate after thousands of cycles.
(3) Enhanced rate performance: The introduction of nano-lanthanum oxide can broaden the lithium ion diffusion channel, improve the mobility of lithium ions, and enable the battery to have better fast charging and discharge capabilities.
(4) Improved safety: A stable material structure means that thermal runaway is less likely to occur under abuse conditions such as overcharge and high temperature, which fundamentally enhances the safety of the battery.
2. As a modifier for solid electrolytes:
(1) Enhance ionic conductivity: Doping lanthanum oxide nanoparticles in oxide-based solid electrolytes can optimize its crystal structure, create more lithium ion migration channels, significantly improve ionic conductivity, and reduce interfacial impedance.
(2) Enhance interfacial compatibility: improve the rigid contact between the solid electrolyte and the positive and negative electrodes, form a more stable interface layer, promote the uniform deposition of lithium ions, and inhibit the growth of lithium dendrites.
The value of battery-grade nano-lanthanum oxide goes far beyond current liquid lithium-ion batteries. It is also the "key puzzle" of many cutting-edge battery technologies in the future, which can be adapted to the following innovation directions:
1. All-solid-state batteries: As a key doping component of solid-state electrolytes and an efficient interface modifier, nano-lanthanum oxide will be a powerful tool to solve the two core problems of ionic conductivity and interface impedance of all-solid-state batteries.
2. Lithium-sulfur batteries: Using the strong adsorption and catalytic conversion of lanthanum ions to polysulfides, nano-lanthanum oxide can be used as a sulfur cathode host material or functional barrier coating, effectively inhibiting the "shuttle effect" and greatly improving the cycle life and energy efficiency of lithium-sulfur batteries.
3. Sodium-ion batteries/other new battery systems: their unique catalytic and stability characteristics also show great application potential in new energy storage systems such as sodium-ion batteries, providing more possibilities for future energy storage.
By choosing us, you will receive three core guarantees that will contribute to win-win cooperation:
1. Stable products with excellent performance: high purity + precise particle size control, providing a reliable material foundation for battery performance improvement.
2. Professional and customized technical services: The technical team can provide personalized solutions according to customer needs (e.g. specific particle size, crystal structure, application scenarios), provide application testing guidance, data reporting support, and assist customers in quickly verifying product value.
3. Stable and reliable supply chain guarantee: Relying on the Baotou rare earth industry base in Inner Mongolia, the inventory is sufficient, and sample testing is supported to ensure your continued demand for R & D and production.
Contact information
• Company Name: Inner Mongolia Lanthanum and Cerium Dilute Materials Technology Co., Ltd.
• Company address: Factory B1, Park, Alatan Khan Street, High-tech Industrial Base, Rare Earth High-tech Zone, Baotou City, Inner Mongolia Autonomous Region
• Contact number: +86-13734725059 / +86-15548127418
• E-mail: lacenrare@lacenrare.com
• Cooperation consultation: If you need sample testing, technical exchange or bulk procurement, you can contact us through the above methods, and we will respond within 24 hours to provide one-to-one exclusive services.
