Metal Phosphides Embedded with In Situ-Formed Metal Phosphate Impurities as Buffer Materials for High-Performance Potassium-Ion Batteries
文献类型：期刊论文
| 作者 | Ji, Shunping; Song, Chunyan; Li, Junfeng; Hui, Kwan San; Deng, Wenjun; Wang, Shuo; Li, Haifeng; Dinh, Duc Anh; Fan, Xi; Wu, Shuxing |
| 刊名 | ADVANCED ENERGY MATERIALS
 |
| 出版日期 | 2021 |
| 卷号 | 11期号:40 |
| 关键词 | ZINC PHOSPHATE ANODE MATERIAL COMPOSITE CARBON GRAPHITE MECHANISMS |
| 英文摘要 | As anodes for metal-ion batteries, metal phosphides usually suffer from severe capacity degradation because of their huge volume expansion and unstable solid electrolyte interphase (SEI), especially for potassium-ion batteries (PIBs). To address these issues, this study proposes amorphous phosphates acting as buffer materials. Ten types of metal phosphide composites embedded with in situ-formed amorphous phosphates are prepared by one-step ball milling using red phosphorus (RP) and the corresponding metal oxides (MOs) as starting materials. A zinc phosphide composite is selected for further study as a PIB anode. Benefitting from the effective suppression of volume variation, a KF-rich SEI is formed on the electrode surface in the KFSI-based electrolyte. The zinc phosphide composite exhibits a high reversible specific capacity and outstanding long-term cycling stability (476 mAh g(-1) over 350 cycles at 0.1 A g(-1) after going through a rate capability test and 177 mAh g(-1) after 6000 cycles at 1.0 A g(-1)) and thus achieves the best cycling performance among all reported metal phosphide-based anodes for PIBs. This study highlights a low-cost and effective strategy to guide the development of metal phosphides as high-performance anodes for PIBs. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21490]  |
| 专题 | 2021专题_期刊论文 |
| 作者单位 | Hui, KS (corresponding author), Univ East Anglia, Sch Engn, Fac Sci, Norwich NR4 7TJ, Norfolk, England. |
| 推荐引用方式 GB/T 7714 | Ji, Shunping,Song, Chunyan,Li, Junfeng,et al. Metal Phosphides Embedded with In Situ-Formed Metal Phosphate Impurities as Buffer Materials for High-Performance Potassium-Ion Batteries[J]. ADVANCED ENERGY MATERIALS,2021,11(40). |
| APA | Ji, Shunping.,Song, Chunyan.,Li, Junfeng.,Hui, Kwan San.,Deng, Wenjun.,...&Hui, Kwun Nam.(2021).Metal Phosphides Embedded with In Situ-Formed Metal Phosphate Impurities as Buffer Materials for High-Performance Potassium-Ion Batteries.ADVANCED ENERGY MATERIALS,11(40). |
| MLA | Ji, Shunping,et al."Metal Phosphides Embedded with In Situ-Formed Metal Phosphate Impurities as Buffer Materials for High-Performance Potassium-Ion Batteries".ADVANCED ENERGY MATERIALS 11.40(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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