![]() ![]() g-1, and the discharge specific capacities were 138.4, 165.8, and 157.7 mAh.Electrochemical property tests testified that for charge-discharge current density of 0.1C and voltage of 2.7-4.3 V(vs Li/Li+), the initial charge specific capacities of prepared LiNiO2, LiNi0.8Co0.2O2, and LiNi1/3Co1/3Mn1/3O2 were 168.0, 225.4, and 194.0 mAh The intensity ratios of XRD lines I(003)/I(104) of the prepared cathode materials were all greater than 2.0, which means the samples had a better-developed layer structure. XRD results showed that the prepared cathode materials possessed an ordered NaFeO2 layer structure. Eutectic mixture of LiNO3-LiOH was used as lithium salt with different precursors to prepare cathode materials LiNiO2, LiNi0.8Co0.2O2, and LiNi1/3Co1/3Mn1/3O2 for lithium ion battery. The lowest melt points of the eutectic mixed LiOH-LiNO3, LiOH-LiCl, LiOH-Li2CO3, and LiNO3-LiCl were 175.7, 294.5, 418.2, and 221.6 ℃, respectively. The result showed that these binary systems were simple eutectic systems and had the lowest melt points. The cooling curves and T-x phase diagrams of lithium salts were plotted in this article. Eutectic mixed lithium salts were studied with thermal analysis method. ![]()
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