Preparing LiNi0.5Mn1.5O4 nanoplates with superior properties in lithium-ion batteries using bimetal-organic coordination-polymers as precursors
文献类型：期刊论文
| 作者 | Yang, Shifeng1,2; Chen, Jian1; Liu, Yingjia1; Yi, Baolian1 |
| 刊名 | journal of materials chemistry a
 |
| 出版日期 | 2014 |
| 卷号 | 2期号:24页码:9322-9330 |
| 英文摘要 | lini0.5mn1.5o4 nanoplates were prepared using a two-step method composed of a hydrothermal method and a solid-state reaction. at first, bimetal-organic coordination-polymers containing ni2+ and mn2+ were synthesized using the ligand 3,4,9,10-perylenetetracarboxylic dianhydride (ptcda) by a template-assisted self-assembly method in a hydrothermal atmosphere. this was followed by thermal treatment to remove the organic components and then calcination with lithium acetate, and nanoplate-stacked lini0.5mn1.5o4 was obtained. the nanoplate structure shortens the diffusion path of the lithium ions in the bulk of lini0.5mn1.5o4 and then promotes fast charge-discharge properties of the material. in addition, an amorphous li2co3 layer with nanometer thickness in situ generated on the surface of the lini0.5mn1.5o4 particles was confirmed by tem and xps. this is helpful for suppressing the interfacial side reactions and thereby improving the cycling stability of the material. owing to these advantages, the lini0.5mn1.5o4/li2co3 material exhibits excellent rate capability and cycling stability. the as-prepared material delivers 129.8 ma h g(-1) at a 1 c rate and retains 86.4% of the initial capacity even after 1000 cycles of charge-discharge at 25 degrees c. even at a high discharge rate of 40 c, the specific capacity of the material is 120.9 ma h g(-1), and the capacity retention is 84.7% over 500 cycles. the high-temperature stability of the material is also superior. when operating at 55 degrees c, the capacity loss by cycle is only 0.037% throughout 250 cycles. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; energy & fuels ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; energy & fuels ; materials science |
| 关键词[WOS] | v-cathode material ; long-cycle-life ; improved electrochemical performance ; high-rate capability ; 55 degrees-c ; elevated-temperature ; licr0.2ni0.4mn1.4o4 spinel ; stabilized lini0.5mn1.5o4 ; ordered lini0.5mn1.5o4 ; surface modification |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000336850600048 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/145600]  |
| 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 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Adv Rechargeable Battery Lab, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Shifeng,Chen, Jian,Liu, Yingjia,et al. Preparing LiNi0.5Mn1.5O4 nanoplates with superior properties in lithium-ion batteries using bimetal-organic coordination-polymers as precursors[J]. journal of materials chemistry a,2014,2(24):9322-9330. |
| APA | Yang, Shifeng,Chen, Jian,Liu, Yingjia,&Yi, Baolian.(2014).Preparing LiNi0.5Mn1.5O4 nanoplates with superior properties in lithium-ion batteries using bimetal-organic coordination-polymers as precursors.journal of materials chemistry a,2(24),9322-9330. |
| MLA | Yang, Shifeng,et al."Preparing LiNi0.5Mn1.5O4 nanoplates with superior properties in lithium-ion batteries using bimetal-organic coordination-polymers as precursors".journal of materials chemistry a 2.24(2014):9322-9330. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。