The electrochemical hydrogenation, structure and thermal stability of LaNi_4·6Zn_0.4-xLi_x (x ≤ 0.2) intermetallic compounds have been investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM) with WDS/EDX, differential scanning calorimetry (DSC) and electrochemical techniques: potentiodynamic polarization, charge/discharge, cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS). The synthesized LaNi_4·6Zn_0.4-xLi_x intermetallics are solid solutions on the basis LaNi₅ compound with hexagonal CaCu₅ structure type. Precise structural studies by single crystal methods revealed that with the increase of lithium content in the phase, the hexagonal unit cell is transformed into a new orthorhombic structure (Cmmm, a = 5.0068 (10), b = 8.6719 (17) Å, c = 3.9952 (8) Å). The LaNi_4·6Zn_0.4-xLi_x intermetallics effectively passivate in 6 M KOH over a wide potential range. The presence of lithium in the solid solution phase improves corrosion resistance of LaNi_4·6Zn_0.4-xLi_x intermetallics compared to the reference compound (LaNi₅). The electrochemical measurements show that LaNi_4·6Zn_0.4-xLi_x intermetallic compounds absorb hydrogen, and the highest effectiveness of hydrogen absorption shows LaNi_4·6Zn_0·2Li_0.2 compound with orthorhombic structure. The DSC/TG results indicate greater thermal stability of compounds doped by Zn (LaNi_4·6Zn_0.4) and Zn/Li (LaNi_4·6Zn_0·2Li_0.2) in compare to LaNi₅.

电化学氢化，结构和热稳定性的LaNi的_4·6的Zn _0.4〜X李_X（X  ≤0.2）的金属间化合物已经使用X射线衍射（XRD）研究了与WDS / EDX扫描电子显微镜（SEM），差扫描量热法（DSC）和电化学技术：电位动力学极化，充电/放电，循环伏安法（CV），电化学阻抗谱（EIS）。合成的LaNi _4·6 Zn _{0.4- x} Li _x金属间化合物是基于LaNi ₅与六方CaCu _5的固溶体结构类型。通过单晶方法进行的精确结构研究表明，随着相中锂含量的增加，六边形晶胞会转变为新的正交结构（Cmmm，a  = 5.0068（10），b  = 8.6719（17）Å，c  = 3.9952（8）Å）。LaNi _4·6 Zn _{0.4- x} Li _x金属间化合物在很宽的电位范围内有效地在6 M KOH中钝化。与参考化合物（LaNi ₅相比），固溶相中锂的存在可提高LaNi _4·6 Zn _{0.4- x} Li _x金属间化合物的耐腐蚀性）。电化学测量表明，LaNi _4·6 Zn _{0.4- x} Li _x金属间化合物吸收氢，并且最大的氢吸收效率显示LaNi _4·6 Zn _0·2 Li _0.2具有正交晶结构。DSC / TG结果表明，与LaNi ₅相比，Zn（LaNi _4·6 Zn _0.4）和Zn / Li（LaNi _4·6 Zn _0·2 Li _0.2）掺杂的化合物具有更高的热稳定性。