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,Sheng-Yang Huang,Xue Qin,Zixiang Guo,Tianyu Wei,Yuzhe Zhang
标识
DOI:10.1002/celc.202200495
摘要
Abstract Titanium niobium oxide (TiNb 2 O 7 ) 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 TiNb 2 O 7 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.
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