Size Effect on Electrochemical Performance of Sodium Terephthalate as Anode Material for Sodium-Ion Batteries

作者：Li, Yi; Hu, Xianfei; Tang, Haoqing^*

来源：International Journal of Electrochemical Science, 2018, 13(7): 7175-7182.

DOI：10.20964/2018.07.81

• Sodium-ion batteries
• sodium terephthalate
• anti-solvent
• size adjustment

Sodium-ion batteries (SIBs) have been recently regarded as one of the most powerful alternatives for lithium ion batteries. Owing to their multi-electron reaction mechanism and low cost, organic anode materials with suitable redox potential and high specific capacity are gradually applied in SIBs. In this article, sodium terephthalate (Na2C8H4O4, Na2TP) was synthesized through acid-base neutralization method. Then, Na2TP with different sizes was obtained by anti-solvent method and applied as anode material for SIBs. The electrochemical performance of Na2TP improves with its size reducing. When the average size of Na2TP is 8 mu m, the reversible specific capacity reaches 225 mAh/g in the first cycle and remains 166.1 mAh/g after 50 cycles.

• 出版日期2018-7
• 单位天津大学