研究了合金 V40 Zr5 Ti30 Cr10 Ni15 Mox (x=0、2、4和6)的相结构及电化学性能。结果表明,所有合金均由BCC结构的 V 基固溶体主相和 C14型 Laves相组成。电化学测试结果表明,合金的放电容量随着Mo含量的增加先增大后减小。在x=2时,合金具有最大的放电容量408.3mAh/g,20次循环后容量保持率为83.2%。合金的高倍率放电性能随着Mo含量和电流密度的增加而降低,x=2时,合金的倍率放电性能最好。
Structure and electrochemical properties of V40Zr5Ti30Cr10Ni15Mox(x=0,2,4,6)alloys were studied. It was found that these alloys consisted of a main phase of V-based solid solution with BCC structure and a sec-ondary phase with C14 type Laves .Electrochemical measurements showed that the discharge capacity increased first and then decreased with the increase of x,and reached the maximum at x=2,about 408.3mAh/g.The ca-pacity retention rate was 83.2% after 20 cycles.The HRD of all the alloys decreased with increasing Mo con-tent and discharge current.
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