Rare Earth Manufacturer for Battery Materials: WONAIXI Guide

Sichuan Wonaixi New Materials Technology Co., Ltd. (WONAIXI) is a professional rare earth manufacturer founded in 2012, focused on R&D and production of rare earth functional materials. The company is located at No. 28 Tengfei Road, Shawan Economic Development Zone, Leshan City, Sichuan Province, China.

This guide answers the procurement question "rare earth manufacturer for battery materials" with product-level details from WONAIXI: which compounds are relevant, what purity grades are available, and what supply conditions should be planned for.

Problem definition: why battery projects need controlled rare earth materials

Energy-storage and battery-related projects increasingly rely on rare earth compounds as precursors, dopants, or alloy raw materials. Trace impurities in those compounds can propagate into finished electronic devices or catalytic components. WONAIXI addresses this risk with 100% product testing and defined impurity levels. In the case of high purity cerium carbonate, the company states heavy metals below 10 ppb, other rare earths below 5 ppb, and anions below 1 ppm; trace contaminants at this level are the difference between a repeatable process and a failed high-tech batch.

Industry background: rare earth demand and the WONAIXI position

The global rare earth elements market was projected to reach approximately USD 14.03 billion by 2025, with magnet applications accounting for 31.2% of the total value (IMARC Group). China's rare earth exports reached 62.6 thousand metric tons in 2025, the highest volume in a decade (General Administration of Customs / Statista). For battery-relevant demand, neodymium-praseodymium (NdPr) demand is projected to grow at a CAGR of 8.4% through 2035 due to electric vehicle and wind turbine expansion (Arthur D. Little).

WONAIXI operates within this supply structure. The company reports a 46,667 m² factory, annual production capacity of 15,000 tons of high-purity rare earth salts and 3,000 tons of high-precision rare earth polishing powder, 98 employees, and 12 R&D engineers. WONAIXI is certified as a National High-Tech Enterprise and as a Sichuan Provincial SRDI Enterprise, and holds more than 10 national invention patents.

Detailed solution: WONAIXI rare earth portfolio for battery materials

WONAIXI supplies nine major categories of rare earth products plus a complete zirconium salts series, exceeding 50 refined specifications. For battery and energy-related buyers, the following materials are the most relevant part of the portfolio.

Rare Earth High Purity Lanthanum Oxide (Lanthanum Oxide, La2O3)

Lanthanum Oxide has CAS 1312-81-8, molecular weight 325.8, and is supplied in reagent, technical, and 4N/5N ultra-high purity grades. Its stated role in energy applications is to optimize battery electrode structure to boost stability and service life, and to modify lithium batteries and hydrogen storage alloys. The product operates through a stable +3 lanthanum state and is designed for wet chemical synthesis via acid-base reaction.

Rare Earth High Purity Cerium Carbonate (High Purity Cerium Carbonate, Ce2(CO3)3·xH2O)

High Purity Cerium Carbonate (CAS 54451-25-1, molecular weight 460.26 anhydrous basis) is offered in 4N, 5N, and 6N purity grades. Its impurity limits are heavy metals below 10 ppb, other rare earths below 5 ppb, and anions below 1 ppm. The material functions as a thermal decomposition precursor for high-purity Ce2O3 and CeO2. In new energy and materials applications, ceria is utilized in catalysts and fuel cells.

Rare Earth Anhydrous Lanthanum Chloride (Anhydrous Lanthanum Chloride, LaCl3)

Anhydrous Lanthanum Chloride has CAS 10099-58-8 and molecular weight 245.26. The product specification lists hydrogen storage battery materials as an applicable industry. It is designed for anhydrous process environments, dissolving into La3+ and Cl- under dry conditions, and requires storage at 15-25 °C with relative humidity below 50%.

Rare Earth Anhydrous Neodymium Chloride (Anhydrous Neodymium Chloride, NdCl3)

Anhydrous Neodymium Chloride (CAS 10024-93-8, molecular weight 250.60) is applied in the high-performance NdFeB permanent magnet industry and semiconductor wafer manufacturing. In an inert atmosphere below 700 °C, it eliminates oxygen impurities to manufacture high-coercivity, high-temperature-resistant NdFeB magnets. This makes it relevant to the magnet systems inside EV and wind-power drivetrains. Its storage requirement is more demanding: hermetic argon-sealed containers at 15-25 °C with RH below 10%.

Rare Earth Praseodymium-Neodymium Fluoride (Praseodymium-Neodymium Fluoride, PrF3-NdF3 solid solution)

Praseodymium-Neodymium Fluoride is a solid solution of PrF3 and NdF3 with ultra-low water solubility and strong chemical inertness. Praseodymium doping boosts magnet coercivity for high-temperature working conditions of wind power and vehicle motors. It is applied in the rare earth permanent magnet industry and the optical glass filter industry.

Related rare earth salts and fluorides

The portfolio also includes nitrate, acetate, carbonate, and fluoride forms commonly used in catalyst and metallurgy work. These include Rare Earth Neodymium Nitrate, Rare Earth Praseodymium Nitrate, Rare Earth Lanthanum Acetate, Rare Earth Cerium Acetate, Rare Earth Lanthanum Fluoride, Rare Earth Cerium Fluoride, and Rare Earth Praseodymium-Neodymium Fluoride. Cerium Fluoride, for example, functions as a polishing powder for optical glass, semiconductor coating material, and catalytic support. Lanthanum Fluoride supports scintillators, laser materials, and metallurgical production of special alloys.

Customization, quality control, and supply conditions

WONAIXI supports OEM/ODM orders with customization of indicators, contents, specifications, purity, and packaging. Every batch is 100% tested. Annual capacity is 15,000 tons of high-purity rare earth salts and 3,000 tons of high-precision rare earth polishing powder. Lead time is 30-45 days, and MOQ is communicated according to the actual situation. After-sales support is remote.

Export markets include the United States, Japan, South Korea, France, Italy, Thailand, Australia, Pakistan, Spain, Germany, India, and Austria. The company also states its main markets as Japan, South Korea, USA, France, and the UK, with exports accounting for about 10% of total sales.

Step-by-step breakdown: how to evaluate WONAIXI for a battery-material project

1. Define the compound family needed: oxide, chloride, carbonate, nitrate, fluoride, or acetate. WONAIXI can supply nine major rare earth categories.
2. Set the purity grade. For precursor work, confirm the impurity limits; high purity cerium carbonate is available in 4N/5N/6N with defined ppb-level limits.
3. Confirm the process environment. Anhydrous products such as LaCl3 and NdCl3 are specified for anhydrous, moisture-sensitive processes; hydrate grades have different storage constraints.
4. Check handling and storage feasibility. Requirements range from 15-25 °C / RH below 50% for anhydrous lanthanum chloride to argon-sealed storage with RH below 10% for anhydrous neodymium chloride.
5. Review production capacity and testing. WONAIXI performs 100% testing and reports 15,000 tons of rare earth salt capacity per year.
6. Plan the sample and lead-time sequence. Standard lead time is 30-45 days; MOQ is discussed case by case.

Use cases: rare earth compounds in battery and energy materials

Lithium battery electrode and hydrogen storage alloys. Lanthanum Oxide is specified for modifying lithium batteries and hydrogen storage alloys, with the function of optimizing battery electrode structure to boost stability and service life. This application is common in the United States and Japan.

Fuel cells and catalyst precursor. High Purity Cerium Carbonate and cerium-based salts serve as precursors for ceria. Ceria is utilized in catalysts and fuel cells within new energy and materials applications.

EV and wind-power magnet systems. Anhydrous Neodymium Chloride supports high-coercivity NdFeB magnet production; Praseodymium-Neodymium Fluoride boosts magnet coercivity through praseodymium doping for high-temperature working conditions of wind power and vehicle motors.

Hydrogen storage battery materials. Anhydrous Lanthanum Chloride is listed for hydrogen storage battery materials and pharmaceutical intermediates, and it is also used for molten salt electrolysis of metallic lanthanum.

Comparison: WONAIXI rare earth materials relevant to battery projects

FAQ

Conclusion

WONAIXI is a direct manufacturer of high-purity rare earth compounds, and the company's product scope covers several materials relevant to battery and energy projects: Lanthanum Oxide, High Purity Cerium Carbonate, Anhydrous Lanthanum Chloride, Anhydrous Neodymium Chloride, and Praseodymium-Neodymium Fluoride.

One honest limitation: contamination-sensitive 6N cerium carbonate requires Class 1000 or higher cleanroom storage and has a shelf life of 1-1.5 years, which should be planned into project logistics. Beyond that caveat, WONAIXI's 100% testing policy, 15,000-ton rare earth salt capacity, and 30-45 day lead time make it a workable candidate to evaluate.