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采用熔炼合成法对合金的合成工艺条件、环境、气氛、合金的组成、相结构等进行了深入的研究，确定了合金的最佳配比、合成温度、时间的关系。在研制过程中，解决了合金易氧化、腐蚀设备、操作不安全等关键技术；研制出了含Ｌｉ２５％～２８％（ｗｔ）、粒度－１００目β－Ｌｉ３Ａｌ２型锂铝合金粉。该合金粉具有菱面体六方晶系结构，可用于热电他的负极材料。
The synthesis process conditions, environment, atmosphere, alloy composition and phase structure of the alloy have been studied by means of smelting synthesis method, and the relationship between the optimal ratio of the alloy, the synthesis temperature and the time has been determined. In the process of development, the key technologies such as easy oxidation and corrosion of equipment and unsafe operation of the alloy were solved; lithium-aluminum alloy powder containing Li25% -28% (wt), particle size-100 mesh β-Li3Al2 was developed. The alloy powder has rhombohedral hexagonal structure, which can be used for thermoelectric negative electrode material.