水系锂离子电池负极材料LiTi2(PO4)3的研究进展

王禹桐, 张非凡, 许乃才, 王春霞, 崔立山, 黄国勇

Research Progress of LiTi2(PO4)3 Anode for Aqueous Lithium-ion Batteries

WANG Yutong, ZHANG Feifan, XU Naicai, WANG Chunxia, CUI Lishan, HUANG Guoyong

表4 溶胶-凝胶法不同碳源和包覆方式的电性能比较

Table 4 Comparison of electrochemical performance of different carbon sources and coating methods by Sol-Gel

Calcination parameter Coating method Carbon source Weight percentage of carbon/% Current density/(mA·g-1) Specific capacity (cycles)/(mAh·g-1) Capacity retention/% Ref. 800 ℃-12 h In-situ Citric acid 6.2 138 106.1(1)-89(1300) 84 [36] 900 ℃-12 h Ex-situ Toluene 12 700 100(1)-83(200) 83 [31] 800 ℃-12 h Ex-situ Acetylene Black 18 140 106.3(1)-86.5(100) 81 [81] 850 ℃-12 h Ex-situ Acetylene Black - 1400 91.3(1)-74.4(100) 81 [82] 700 ℃-12 h In-situ Pitch 17.5 1380 107(1)-75.5(1000) 70 [83] 550 ℃-24 h In-situ Sucrose 3.5 1400 110(1)-104(800) 94 [17] 750 ℃-5 h In-situ Polyaniline 5.9 276 115.2(1)-94.6(1000) 82 [84] 750 ℃-5 h In-situ Polyacrylonitrile 5.9 690 95(1)-82.1(1000) 86 [85] 900 ℃-12 h In-situ Graphene oxide 1.79 ~1380 110(1)-100(100) 91 [78] 800 ℃-10 h In-situ Graphene oxide - ~276 105(1)-97.86(100) 93.2 [77] 700 ℃-5 h In-situ Graphene oxide, phenolic resin 16.2 ~690 101.1(1)-78(1000) 77.2 [80] 800 ℃-8 h Ex-situ β-Cyclodextrin 3.13 ~690 120(1)-(200)111.3 88.7 [86]