预氧化固气法合成LiNiO2的研究 |
Study of LiNiO2 Synthesized by Preoxide Solid-Gas Method |
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摘要: |
关键词: LiNiO2 预氧化 Ni3O2(OH)4 固气合成法 循环性能 |
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Abstract: LiNiO2 was prepared by reaction of stoichiometric amounts of thoroughly-mixed LiOH·H2O and preoxidation nanometer-scale Ni3O2(OH)4 powders in O2 at the temperature of 700℃ for 6h. The products were tested by XRD, XPS, SEM and electrochemistry methods. It was shown that product was LiNiO2 single-phase, and the valence of nickel was +3; the average size of it was 40nm; its initial charge specific capacity is 168mAh·g-1 and the coulomb efficiency is 90%; the second charge specific capacity is 160mAh·g-1 and the coulomb efficiency is 96%. |
Keywords: LiNiO2 preoxidation Ni3O2(OH)4 solid-gas method cycling performance |
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张花蓉,赖琼钰,卢集政,吉晓洋.预氧化固气法合成LiNiO2的研究[J].无机化学学报,2003,19(11):1241-1244. |
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