研究了合金元素掺杂对TiV2.1Ni0.4系列合金的相结构及电化学性能的影响.XRD分析表明,该合金由V基固溶体主相和以网状分布于主相晶界的Ti2Ni第二相和C15型Laves第三相组成.BEI、EDS和电化学测试表明,Zr、Cu合金元素进入第二相晶格而使合金的电化学容量略降,但提高了合金的循环性能;Cr元素由于大部分进入到主相晶格而使合金的电化学循环性能大幅度提高,经40次循环后容量保持率仍达88.4%,但最大放电容量有所降低.
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