The new generation of high-capacity La-Y-Ni hydrogen storage alloy material developed by the research team of BGXT Rare Earth Alloy Technology Group has a discharge capacity of more than 380 mA per gram. The comprehensive performance meets the market demand and breaks the foreign patent limit. The project has entered the pilot test stage and is waiting for the test results of nickel-hydrogen battery manufacturers.
The technology of La-Mg-Ni hydrogen storage materials has always been exclusively mastered by Japan. Although many companies and research units in China have carried out research on this, they have not formed industrialization. BGXT took the lead in making breakthroughs and developed new products that can meet high demands. Capacity, ultra-low self-discharge Ni-MH battery demand, and technical achievements in industrialization.
The new high-capacity La-Y-Ni series hydrogen storage alloy material has the characteristics of high plateau pressure and high cycle life. The actual discharge capacity exceeds the theoretical discharge capacity of the commercially available LaNi5 hydrogen storage material, and the cost is 5% to 20% lower; performance and high The La-Mg-Ni series hydrogen storage alloy material has the same capacity, but the preparation process is simple. In the previous research, the Rare Earth Institute found that yttrium can inhibit the hydrogen-induced amorphization of binary La-Ni alloy materials, which can solve the short service life and small discharge capacity of the previous two generations of hydrogen storage alloy products. Based on the research results, BGXT has built an industrial test production line for hydrogen storage alloy materials with an annual output of 300 tons. The 200 kg intermediate frequency induction furnace adopts the casting process and the 300 kg intermediate frequency induction furnace adopts the rapid quenching process to develop alloy products. The process is further optimized and the storage is continuously improved. The performance of hydrogen alloy and nickel-metal hydride batteries.
The promotion and application of this product will improve the performance and market competitiveness of the nickel-hydrogen power battery products of downstream enterprises, and at the same time will play a positive role in promoting the balanced development of the upstream light rare earth industry. At present, the project has obtained 6 national authorized invention patents and declared 2 international invention patents.