High-Performance Lithiated SiOx Anode Obtained by a Controllable and Efficient Prelithiation Strategy
文献类型：期刊论文
| 作者 | Meng, Qinghai; Li, Ge; Yue, Junpei; Xu, Quan; Yin, Ya-Xia; Guo, Yu-Guo |
| 刊名 | ACS APPLIED MATERIALS & INTERFACES
 |
| 出版日期 | 2019-09-04 |
| 卷号 | 11期号:35页码:32062-32068 |
| ISSN号 | 1944-8244 |
| DOI | 10.1021/acsami.9b12086 |
| 英文摘要 | Silicon-based electrodes are promising and appealing for futuristic Li-ion batteries because of their high theoretical specific capacity. However, massive volume change of silicon upon lithiation and delithiation, accompanied by continual formation and destruction of the solid-electrolyte interface (SEI), leads to low Coulombic efficiency. Prelithiation of Si-based anode is regarded as an effective way for compensating for the loss of Li+ in the first discharging process. Here, a high-performance lithiated SiOx anode was prepared by using a controllable, efficient, and novel prelithiation strategy. The lithiation of SiOx is homogeneous and efficient in bulk due to well-improved Li+ diffusion in SiOx. Moreover, the in situ formed SEI during the process of prelithiation reduces the irreversible capacity loss in the first cycle and thus improves the initial Coulombic efficiency (ICE). Half-cells and full cells based on the as-prepared lithiated SiOx anode prominently increase the ICE from 79 to 89% and 68 to 87%, respectively. It is worth mentioning that the homogeneously lithiated SiOx anode achieves stable 200 cycles in NCM622//SiOx coin full cells. These exciting results provide applicable prospects of lithiated SiOx anode in the next-generation high-energy-density Li-ion batteries. |
| 语种 | 英语 |
| WOS记录号 | WOS:000484831100051 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/82608]  |
| 专题 | 中国科学院化学研究所 |
| 作者单位 | Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Qinghai,Li, Ge,Yue, Junpei,et al. High-Performance Lithiated SiOx Anode Obtained by a Controllable and Efficient Prelithiation Strategy[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(35):32062-32068. |
| APA | Meng, Qinghai,Li, Ge,Yue, Junpei,Xu, Quan,Yin, Ya-Xia,&Guo, Yu-Guo.(2019).High-Performance Lithiated SiOx Anode Obtained by a Controllable and Efficient Prelithiation Strategy.ACS APPLIED MATERIALS & INTERFACES,11(35),32062-32068. |
| MLA | Meng, Qinghai,et al."High-Performance Lithiated SiOx Anode Obtained by a Controllable and Efficient Prelithiation Strategy".ACS APPLIED MATERIALS & INTERFACES 11.35(2019):32062-32068. |
入库方式： OAI收割
来源：化学研究所
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