标题:Facile synthesis ofN,O-codoped hard carbon on the kilogram scale for fast capacitive sodium storage
作者:Huang, Man; Xi, Baojuan; Feng, Zhenyu; Liu, Jing; Feng, Jinkui; Qian, Yitai; Xiong, Shenglin
作者机构:[Huang, Man; Xi, Baojuan; Feng, Zhenyu; Qian, Yitai; Xiong, Shenglin] Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem, Minist Ed 更多
通讯作者:Xiong, SL;Xiong, Shenglin
通讯作者地址:[Xiong, SL]Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem, Minist Educ, Jinan 250100, Shandong, Peoples R China.
来源:JOURNAL OF MATERIALS CHEMISTRY A
出版年:2018
卷:6
期:34
页码:16465-16474
DOI:10.1039/c8ta06160b
摘要:Hard carbon has been identified as a promising anode material for sodium-ion batteries (SIBs). Herein, a facile self-templating strategy has been developed for the kilogram-scale preparation of N,O-codoped hierarchical porous hard carbon cuttlefish-like nanowire bundles (denoted as NOHPHC cuttlefishes). The unique nanoarchitecture leads to ultrafast pseudocapacitive sodium storage, excellent reversibility, and negligible degradation of the host material. NOHPHC delivers a high reversible capacity of 184 mA h g(-1) at 0.5 A g(-1), which is maintained at 114 mA h g(-1) at 5 A g(-1) for over 30000 cycles, as well as exceptional rate capability of up to 20 A g(-1) with a capacity of approximately 100 mA h g(-1). Importantly, samples prepared before and after kilogram scaling are comparable in performance. Coupled with a Na3V2(PO4)(3)/C cathode, a full cell successfully obtains a high energy density of 52.6 W h kg(-1) at 50 W kg(-1) and 34 W h kg(-1) at 1.4 kW kg(-1).
收录类别:EI;SCOPUS;SCIE
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85052715256&doi=10.1039%2fc8ta06160b&partnerID=40&md5=d889b5d7f113e58f450369d1eeda411c
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