Porous carbon spheres as anode materials for sodium-ion batteries with high capacity and long cycling life

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• 作者：Hongmei Tang ; Miao Wang ; Ting Lu ; Likun Pan ; ^{lkpan@phy.ecnu.edu.cn}
• 关键词：Sodium-ion batteries ; Anode material ; Porous carbon spheres ; Long cycling life
• 刊名：Ceramics International
• 出版年：2017
• 出版时间：1 April 2017
• 年：2017
• 卷：43
• 期：5
• 页码：4475-4482
• 全文大小：1958 K
• 卷排序：43

文摘

Porous carbon spheres (PCSs) with high surface area were fabricated by the reaction of D-Glucose monohydrate precursor with sodium molybdate dihydrate (Na2MoO4·2H2O) via a facile hydrothermal method followed by carbonization and aqueous ammonia solution (NH3·H2O) treatment. The as-prepared PCSs exhibit a highly developed porous structure with a large specific surface area and show an excellent electrochemical performance as anode material of sodium-ion batteries (SIBs). A reversible capacity of 249.9 mA h g−1 after 50 cycles at a current density of 50 mA g−1 and a long cycling life at a high current density of 500 mA g−1 are achieved. The excellent cycling performance and high capacity make the PCSs a promising candidate for long cycling SIBs.