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Li-rich layered Li1.2Mn0.54Ni0.13Co0.13O2 derived from transition metal carbonate with a micro-nanostructure as a cathode material for high-performance Li-ion batteries
Dai, Dongmei1; Wang, Bao2; Li, Bao1; Li, Fan1; Wang, Xinbo1; Tang, Hongwei1; Chang, Zhaorong1
2016
发表期刊RSC ADVANCES
ISSN2046-2069
卷号6期号:99页码:96714-96720
摘要

Compared to commercialized cathode materials, Li-rich layered oxide exhibits a superior mass energy density. However, owing to its low tap/press density, the advantage of its volume energy density is not as obvious as that of its mass energy density, which limits its applications in some volume-constrained fields. It has been shown that the morphology of the precursor is critical to the performances of the final product. Here, solvothermal and co-precipitation methods were adopted to synthesize transition metal carbonate balls with micro-size particles to obtain high-density Li-rich layered oxides. The solvothermal synthesized carbonate showed a micro-nano hierarchical structure composed of nanoplates as subunits, and the co-precipitated synthesized carbonate just presents a micrometer quasi-ball morphology. The Li1.2Mn0.54Ni0.13Co0.13O2 derived from the above solvothermal synthesized carbonate (ST-LMNCO) demonstrated an improved volume density of similar to 14% compared to the one derived from the co-precipitated synthesized carbonate (CP-LMNCO). As for electrochemical performances, the ST-LMNCO exhibited a higher discharge specific capacitance (296.6mA h g(-1) for the first discharge), a better rate performance (201.6 mA h g(-1) at 1C rate) and a better capacity retention capability (86.2% after 80 cycles) than the CP-LMNCO. The morphologies of the transition metal carbonates as starting materials significantly impacted the morphologies of the derived Li-1.2Mn0.54Ni0.13Co0.13O2 particles. Therefore, the carbonate with a hierarchical micro-nanostructure obtained from the solvothermal method is a promising precursor for high performance Li1.2Mn0.Ni-54(0).13Co0.13O2.

文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6ra21006f
收录类别SCI
语种英语
关键词[WOS]SUPERIOR RATE-CAPABILITY ; MOLTEN-SALT METHOD ; IN-SITU XRD ; HIGH-CAPACITY ; FACILE SYNTHESIS ; RECENT PROGRESS ; VOLTAGE FADE ; LITHIUM ; MICROSPHERES ; RETENTION
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者National Natural Science Foundation of China(51672071 ; National High Technology Research and Development Program(2013AA032002 ; Key Scientific Research Project of Henan Province(15A150056) ; Program for Innovative Research Team in University of Henan Province(17IRTSTHN001) ; Beijing National Laboratory for Molecular Sciences(20140144) ; Xinxiang key scientific and technological projects(ZG15004) ; 21203056 ; 2015AA034601) ; 21303042)
WOS记录号WOS:000386242500032
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21586
专题生化工程国家重点实验室
作者单位1.Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
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GB/T 7714
Dai, Dongmei,Wang, Bao,Li, Bao,et al. Li-rich layered Li1.2Mn0.54Ni0.13Co0.13O2 derived from transition metal carbonate with a micro-nanostructure as a cathode material for high-performance Li-ion batteries[J]. RSC ADVANCES,2016,6(99):96714-96720.
APA Dai, Dongmei.,Wang, Bao.,Li, Bao.,Li, Fan.,Wang, Xinbo.,...&Chang, Zhaorong.(2016).Li-rich layered Li1.2Mn0.54Ni0.13Co0.13O2 derived from transition metal carbonate with a micro-nanostructure as a cathode material for high-performance Li-ion batteries.RSC ADVANCES,6(99),96714-96720.
MLA Dai, Dongmei,et al."Li-rich layered Li1.2Mn0.54Ni0.13Co0.13O2 derived from transition metal carbonate with a micro-nanostructure as a cathode material for high-performance Li-ion batteries".RSC ADVANCES 6.99(2016):96714-96720.
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