Macro-mesoporous hollow carbon spheres as anodes for lithium-ion batteries with high rate capability and excellent cycling performance

被引：49

作者：

Yue, Xinyang ^{[1
]}

Sun, Wang ^{[1
]}

Zhang, Jing ^{[1
]}

Wang, Fang ^{[1
]}

Yang, Yuxiang ^{[1
]}

Lu, Chengyi ^{[1
]}

Wang, Zhenhua ^{[1
,2
]}

Rooney, David ^{[3
]}

Sun, Kening ^{[1
,2
]}

机构：

[1] Beijing Inst Technol, Beijing Key Lab Chem Power Source & Green Catalys, Sch Chem Engn & Environm, BIT QUB Joint Ctr Novel Energy & Mat Res, Beijing 100081, Peoples R China

[2] Collaborat Innovat Ctr Elect Vehicles Beijing, 5 Zhongguancun South Ave, Beijing 100081, Peoples R China

[3] Queens Univ, Sch Chem & Chem Engn, Belfast BT9 5AG, Antrim, North Ireland

来源：

JOURNAL OF POWER SOURCES | 2016年 / 331卷

基金：

中国国家自然科学基金;

关键词：

Lithium-ion battery; Anode; Carbon sphere; Macropore; Rate performance; ELECTROCHEMICAL PROPERTIES; NEGATIVE ELECTRODE; GRAPHENE SHEETS; CAPACITY; STORAGE; NANOSPHERES; SILICON; 1ST-PRINCIPLES; ADSORPTION; CATHODE;

D O I：

10.1016/j.jpowsour.2016.09.029

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, nanostructured macro-mesoporous hollow carbon spheres (MMHCSs) with high surface areas (396 m(2) g(-1)) were synthesized as anode materials via a facile template-based method. A macro porous structure was created on the surfaces of the mesoporous hollow carbon spheres without destroying their spherical structure by etching in 20% HF. The unique nanostructure (imperfect hollow spheres) and the beneficial characteristics of amorphous carbon gave the MMHCSs a high reversible capacity of 530 mAh g(-1) at 2.5 A g(-1) over 1000 cycles. Remarkably, the MMHCSs retained an excellent rate capability of 180 mAh g(-1) at 60 A g(-1), which was superior to that of perfectly structured mesoporous hollow carbon spheres (without macropore (MHCSs)). (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：10 / 15

页数：6

共 41 条

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