Realizing a highly stable sodium battery with dendrite-free sodium metal composite anodes and O3-type cathodes

doi:10.1016/j.nanoen.2018.03.069

CORC > 化学研究所 > 中国科学院化学研究所

	Realizing a highly stable sodium battery with dendrite-free sodium metal composite anodes and O3-type cathodes
	Ye, Huan 1,2; Wang, Cao-Yu 1; Zuo, Tong-Tong 2,3; Wang, Peng-Fei 2,3; Yin, Ya-Xia 2,3; Zheng, Zi-Jian 4; Wang, Ping 1; Cheng, Jian 1; Cao, Fei-Fei 1; Guo, Yu-Guo2,3
刊名	NANO ENERGY
	2018-06-01
卷号	48 页码:369-376
关键词	Sodium Battery Metallic Na Anode Dendrite-free O3-type Cathode High Stability
ISSN号	2211-2855
DOI	10.1016/j.nanoen.2018.03.069
英文摘要	Room-temperature Na metal batteries have been regarded as promising candidates for energy storage systems due to their high energy density and the widespread availability of low cost sodium. However, the practical application of metallic sodium anode is impeded by its low stripping/plating efficiency and poor cycling performance due to the poor reversibility of sodium anode caused by the formation of inhomogeneous solid electrolyte interphase, the growth of dendritic sodium, and relatively infinite volume change. Here, Na-C composite anode was fabricated by depositing nanoscale metallic sodium in graphitized carbon microspheres which were assembled from graphitized carbon nanosheets. The carbon microspheres function as a mini-nanoreservoir with high-surface-area, conductivity, and mechanical stability, which lower the local current density, ensure a homogeneous Na nucleation and high electrochemical active of Na, and restrict the volume change. As a result, metallic sodium can be reversibly nondendritic stripped/plated with a high Coulombic efficiency of 99.3% up to 4 mA cm(-2) for 4 mA h cm(-2). Building upon this dendrite-free anode, we demonstrate a full cell using O3-NaNi0.5Mn0.2Ti0.3O2 cathode to achieve a superior long lifespan of similar to 100 cycles at high current density of 0.5 degrees C.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000432604600043
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/42859]
专题	中国科学院化学研究所
通讯作者	Cao, Fei-Fei; Guo, Yu-Guo
作者单位	1.Huazhong Agr Univ, Coll Sci, Wuhan 430070, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, CAS Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci CAS, Beijing 100049, Peoples R China 4.Hubei Univ, Sch Mat Sci & Engn, Minist Educ,Key Lab Green Preparation & Applicati, Hubei Key Lab Polymer,Hubei Collaborative Innovat, Wuhan 430062, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Ye, Huan,Wang, Cao-Yu,Zuo, Tong-Tong,et al. Realizing a highly stable sodium battery with dendrite-free sodium metal composite anodes and O3-type cathodes[J]. NANO ENERGY,2018,48:369-376.
APA	Ye, Huan.,Wang, Cao-Yu.,Zuo, Tong-Tong.,Wang, Peng-Fei.,Yin, Ya-Xia.,...&Guo, Yu-Guo.(2018).Realizing a highly stable sodium battery with dendrite-free sodium metal composite anodes and O3-type cathodes.NANO ENERGY,48,369-376.
MLA	Ye, Huan,et al."Realizing a highly stable sodium battery with dendrite-free sodium metal composite anodes and O3-type cathodes".NANO ENERGY 48(2018):369-376.