石墨烯
材料科学
氧化物
阳极
氧化铌
锂(药物)
铌
碳纤维
钛
化学工程
纳米技术
无机化学
复合数
冶金
化学
电极
复合材料
医学
物理化学
内分泌学
工程类
作者
Chanrong Lei,Shengyang Huang,Xue Qin,Zixiang Guo,Tianyu Wei,Yuzhe Zhang
标识
DOI:10.1002/celc.202200495
摘要
Abstract Titanium niobium oxide (TiNb2O7) has shown great potential to replace carbon‐based anode materials for lithium‐ion batteries because of its high theoretical specific capacity and high rate performance. However, the low intrinsic Li+/e− conductivity of TiNb2O7 restricts its extensive application. To overcome this disadvantage, a novel reduced graphene oxide/glucose co‐assisted micro titanium niobium oxide hybrid anodes (G/C/TNO) was designed by a bottom‐up one‐pot method. rGO mainly acted as the carrier to reach the goal of ameliorating electronic conductivity. Glucose, as the fixative and carbon source, chiefly played a protective role in the structural integrity during cycling and synergized with rGO to improve Li+/e− transport kinetics. Therefore, the novel G/C/TNO composite displayed a high specific capacity of 208.8 mAh g−1 at 2C after 500 cycles and a good cycling stability of 161.1 mAh g−1 at a high rate of 10C in the best case.
科研通智能强力驱动
Strongly Powered by AbleSci AI