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High-Performance, Low-Cost, and Dense-Structure Electrodes with High Mass Loading for Lithium-Ion Batteries | |
2019-07-11 | |
发表期刊 | ADVANCED FUNCTIONAL MATERIALS |
ISSN | 1616-301X |
卷号 | 29期号:34 |
发表状态 | 已发表 |
DOI | 10.1002/adfm.201903961 |
摘要 | Lithium-ion batteries have undergone a remarkable development in the past 30 years. However, conventional electrodes are insufficient for the ever-increasing demand of high-energy batteries. Here, reported is a thick electrode with a dense structure, as an alternative to the commonly recognized porous framework. A low-temperature sintering technology with the aid of aqueous solvent, high pressure, and an ion-conductive additive is originally developed for preparing the LiCoO2 (LCO)/Li4Ti5O12 (LTO) dense-structure electrode as the representative cathode/anode material. The 400 mu m thick cathode with 110 mg cm(-2) mass loading achieves a high specific capacity of 131.2 mAh g(-1) with a good capacity retention of 96% over 150 cycles, far exceeding the commercial counterpart (approximate to 40 mu m) of 54.1 mAh g(-1) with 39%. The ultrathick electrode of 1300 mu m thickness presents a remarkable area capacity of 28.6 mAh cm(-2) that is 16 times that of the commercial electrode. The full cell based on the dense electrodes delivers an extremely high areal capacity of 14.4 mAh cm(-2). The ion-diffusion coefficients of the densely sintered electrodes increase by nearly three orders of magnitude. This design opens up a new avenue for scalable and sustainable material manufacturing towards various practical applications. |
关键词 | aqueous solvents dense electrodes high areal capacity ion-conductive nanoparticles low-temperature sintering |
收录类别 | SCI ; SCIE ; EI |
资助项目 | China Postdoctoral Science Foundation[2017M621574] |
WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
WOS记录号 | WOS:000477122600001 |
出版者 | WILEY-V C H VERLAG GMBH |
WOS关键词 | THICK ELECTRODES ; CARBON NANOTUBE ; FOAM ; ADHESIVE ; POROSITY |
原始文献类型 | Article |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/61074 |
专题 | 物质科学与技术学院_硕士生 物质科学与技术学院_PI研究组_于奕组 物质科学与技术学院_PI研究组_刘巍组 物质科学与技术学院_本科生 |
通讯作者 | Liu, Wei |
作者单位 | ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China |
第一作者单位 | 物质科学与技术学院 |
通讯作者单位 | 物质科学与技术学院 |
第一作者的第一单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Wu, Xinsheng,Xia, Shuixin,Huang, Yuanqi,et al. High-Performance, Low-Cost, and Dense-Structure Electrodes with High Mass Loading for Lithium-Ion Batteries[J]. ADVANCED FUNCTIONAL MATERIALS,2019,29(34). |
APA | Wu, Xinsheng.,Xia, Shuixin.,Huang, Yuanqi.,Hu, Xiangchen.,Yuan, Biao.,...&Liu, Wei.(2019).High-Performance, Low-Cost, and Dense-Structure Electrodes with High Mass Loading for Lithium-Ion Batteries.ADVANCED FUNCTIONAL MATERIALS,29(34). |
MLA | Wu, Xinsheng,et al."High-Performance, Low-Cost, and Dense-Structure Electrodes with High Mass Loading for Lithium-Ion Batteries".ADVANCED FUNCTIONAL MATERIALS 29.34(2019). |
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