The hollow microspherical structure cathode materials of bimetallic disulfide Co_xNi_1-xS₂ (x varied from 0.1 to 0.5) for lithium thermal battery were synthesized by hydrothermal method. The structure, morphology, and composition of the hollow Co_xNi_1-xS₂ were evaluated by field emission scanning electron microscope (FESEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD). The thermal stability was assessed by differential thermal analyzer (DTA). The thermal battery fabricated with Co_xNi_1-xS₂ as cathode active material and LiB as anode exhibits the good electrochemical performance at 450 °C. Especially when x = 0.1, the initial discharge voltage reached 2.037 V, and specific capacity was 297.4 mA h g⁻¹ at cut-off voltage of 1.5 V during constant current discharge. The bimetal disulfide material also presented advantages of reducing the internal resistance of the single cell.

通过水热法合成了用于锂热电池的双金属二硫化物Co _x Ni _1-x S ₂（x在0.1至0.5之间）的空心微球结构阴极材料。通过场发射扫描电子显微镜（FESEM），能量色散X射线能谱（EDX）和X射线衍射（XRD）对中空Co _x Ni _1-x S ₂的结构，形态和组成进行了评估。通过差热分析仪（DTA）评估热稳定性。用Co _x Ni _1-x S ₂制造的热电池作为阴极活性材料的LiB和作为阳极的LiB在450°C时表现出良好的电化学性能。特别是在x  ＝ 0.1的情况下，在恒定电流放电中，初始放电电压达到2.037V，在1.5V的截止电压下的比容量为297.4mAh g ^-1。双金属二硫化物材料还具有降低单电池内阻的优点。