阳极
介观物理学
纳米棒
材料科学
电解质
化学工程
极化(电化学)
锂(药物)
离子
纳米技术
阴极
锂离子电池
电极
电池(电)
化学
物理化学
物理
医学
功率(物理)
有机化学
量子力学
内分泌学
工程类
作者
Jinfeng Zeng,Le Yang,Ruiwen Shao,Lei Zhou,Wellars Utetiwabo,Saisai Wang,Renjie Chen,Wen Yang
标识
DOI:10.1016/j.jcis.2021.04.136
摘要
Benefiting from large tunnel structure, zero strain feature, and excellent pseudocapacitive performance, Ti2Nb10O29 was considered as a potential anode material for lithium-ion batteries (LIBs). Herein, Ti2Nb10O29 cages comprised of nanorod units were elaborately designed. The mesoscopic structure could effectively shorten the ion diffusion pathway, and the big central electrolyte reservoir relieves the concentration polarization of electrolyte. Moreover, the perforated pore feature guarantees competent contact between electrolyte and framework. As the anode of LIBs, the mesoscopic Ti2Nb10O29 cages deliver high reversible capacity (302.5 mAh/g) and rate capability (134.3 mAh/g at 30 A/g). This unique mesoscopic structure holds excellent potential for the electrode design of high-rate and long-life LIBs.
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