锂离子电池负极材料TiS3 纳米片的制备和性能
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肖揽, 于文华, 黄昊, 吴爱民, 靳晓哲
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Preparation and Performance of TiS3 Nanoflakes as Anode Material for Lithium-ion Batteries
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XIAO Lan, YU Wenhua, HUANG Hao, WU Aimin, JIN Xiaozhe
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表1 TiS3纳米片电极的模拟电路参数
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Table 1 Equivalent circuit parameters of TiS3 nanoparticles electrode
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| Sample | CPE1 | CPE2 | R2 | R3 | σW/Ω·cm2·s-0.5 | D0/cm2·s-1 | IF/mA·cm-2 |
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| Initial | 3.561×10-5 | - | 62.63 | - | 28.986 | 6.366×10-11 | 2.665×10-4 | | 1st cycle | 5.355×10-4 | 1.371×10-4 | 11.98 | 28.16 | 40.987 | 3.184×10-11 | 1.393×10-3 | | 5th cycle | 2.766×10-4 | 1.056×10-7 | 23.64 | 0.809 | 31.275 | 5.468×10-11 | 7.061×10-4 | | 10th cycle | 1.217×10-4 | 1.969×10-6 | 19.05 | 1.595 | 24.712 | 8.759×10-11 | 8.763×10-4 | | 20th cycle | 1.476×10-4 | 1.413×10-6 | 20.84 | 1.600 | 41.579 | 3.094×10-11 | 8.010×10-4 | | 50th cycle | 1.333×10-4 | 6.508×10-7 | 27.51 | 1.572 | 48.890 | 2.237×10-11 | 6.149×10-4 |
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