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Constructing high-performance 3D porous self-standing electrodes with various morphologies and shapes by a flexible phase separation-derived method

文献类型：期刊论文

作者Yi, Hongming1,2; Li, Dan1,2; Lv, Zhiqiang1,2; Li, Rui1,2; Ling, Moxiang1,2; Zhang, Huamin2,3; Zheng, Qiong2; Li, Xianfeng2,3
刊名JOURNAL OF MATERIALS CHEMISTRY A
出版日期2019-10-21
卷号7期号:39页码:22550-22558
ISSN号2050-7488
DOI10.1039/c9ta08845h
通讯作者Zheng, Qiong(zhengqiong@dicp.ac.cn) ; Li, Xianfeng(lixianfeng@dicp.ac.cn)
英文摘要Self-standing electrodes have attracted great attention due to their promising applications in advanced electronic devices with high-energy demands. Inspired by the 3D framework and well-controlled porous structure of the porous membrane prepared via the phase separation method, for the first time, a binder-free 3D porous self-standing electrode has been designed and fabricated by using a porous polybenzimidazole (PBI) membrane as the template. Various methods were investigated in detail, in which the ethanol phase separation-derived method resulted in a sponge-like cross section and porous structure of both surfaces, leading to the best electrochemical performance. Meanwhile, considering the carbon content, the optimized self-standing Na3V2(PO4)(3)@C electrode exhibited excellent rate performance (110.4 mA h g(-1) at 0.5C and 108.1 mA h g(-1) at 40C) and cycling stability (capacity retention of 90.4% after 2000 cycles at 1C). The superior electrochemical performance can be ascribed to the high electron conductivity due to the 3D N-doped cross-linked carbon matrix and the fast Na+ diffusion in the spongy macro-porous structure. The self-standing electrode prepared via this method exhibited high flexibility in the electrode mass loading, pore structures (sponge-like, finger-like, etc.) and electrode shapes (fiber, coil, spiral, letter, etc.). This phase separation-derived method will greatly promote the development and large-scale application of self-standing electrodes.
WOS关键词CATHODE MATERIALS ; ELECTROCHEMICAL PERFORMANCE ; CARBON NANOFIBERS ; SODIUM ; MEMBRANES ; BATTERY ; STORAGE ; LITHIUM
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21070500]
WOS研究方向Chemistry ; Energy & Fuels ; Materials Science
语种英语
WOS记录号WOS:000489727600038
出版者ROYAL SOC CHEMISTRY
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://cas-ir.dicp.ac.cn/handle/321008/172354]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Zheng, Qiong; Li, Xianfeng
作者单位1.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Div Energy Storage, Zhongshan Rd 457, Dalian 116023, Peoples R China
3.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714		 Yi, Hongming,Li, Dan,Lv, Zhiqiang,et al. Constructing high-performance 3D porous self-standing electrodes with various morphologies and shapes by a flexible phase separation-derived method[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(39):22550-22558.
APA Yi, Hongming.,Li, Dan.,Lv, Zhiqiang.,Li, Rui.,Ling, Moxiang.,...&Li, Xianfeng.(2019).Constructing high-performance 3D porous self-standing electrodes with various morphologies and shapes by a flexible phase separation-derived method.JOURNAL OF MATERIALS CHEMISTRY A,7(39),22550-22558.
MLA Yi, Hongming,et al."Constructing high-performance 3D porous self-standing electrodes with various morphologies and shapes by a flexible phase separation-derived method".JOURNAL OF MATERIALS CHEMISTRY A 7.39(2019):22550-22558.

入库方式： OAI收割

来源：大连化学物理研究所

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