In Situ Studies of 30% Li-Doped Bi25FeO40 Conversion Type Lithium Battery Electrodes
文献类型：期刊论文
| 作者 | Gao, M; Zhu, DM; Zhang, XM; Liu, Y; Gao, XY; Zhou, XT; Wen, W |
| 刊名 | ACS OMEGA
 |
| 出版日期 | 2019 |
| 卷号 | 4期号:1页码:2344—2352 |
| 关键词 | X-RAY-DIFFRACTION CATHODE MATERIAL BISMUTH OXIDE OXYGEN MECHANISM FLUORIDE ORIGIN PHASE BI2O3 XRD |
| ISSN号 | 2470-1343 |
| DOI | 10.1021/acsomega.8b02418 |
| 文献子类 | 期刊论文 |
| 英文摘要 | One of the important discharge mechanisms for lithium batteries is the conversion reaction mechanism, where a metal oxide (fluoride) can decompose into metallic nanoparticles embedded in a Li2O (LiF) matrix. Here, 30% Li-doped Bi25FeO40 is successfully synthesized and displays an electrochemical discharge capacity of similar to 300 mAh/g above 1.5 V (vs Li/Li+). During the electrochemical cycling process, 30% Li-doped Bi25FeO40 is decomposed into metallic Bi. During the subsequent charging process, the metallic bismuth can be first converted into an amorphous bismuth oxide phase, which contributed to the electrochemical discharge activities observed between 2 and 2.5 V. At a higher charging voltage between 3.5 and 5 V, metallic Bi can be oxidized to BiOx2- O-3-2x(-), which contributes to the discharge activities observed above 2.5 V. Using graphite as current collectors can prevent the corrosion from O-species and the discharge capacity is greatly enhanced at the voltage region between 1.5 and 2.5 V. This work provides a deeper understanding over the role of oxygen ions during the conversion reaction process and is beneficial for the future design of battery systems based on the conversion reaction. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31668]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, Jialuo Rd 2019, Shanghai 201800, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Jialuo Rd 2019, Shanghai 201800, Peoples R China; 3.Chinese Acad Sci, Shanghai Synchrotron Radiat Facil, Shanghai Inst Appl Phys, Pudong New Area, Shanghai 201204, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Gao, M,Zhu, DM,Zhang, XM,et al. In Situ Studies of 30% Li-Doped Bi25FeO40 Conversion Type Lithium Battery Electrodes[J]. ACS OMEGA,2019,4(1):2344—2352. |
| APA | Gao, M.,Zhu, DM.,Zhang, XM.,Liu, Y.,Gao, XY.,...&Wen, W.(2019).In Situ Studies of 30% Li-Doped Bi25FeO40 Conversion Type Lithium Battery Electrodes.ACS OMEGA,4(1),2344—2352. |
| MLA | Gao, M,et al."In Situ Studies of 30% Li-Doped Bi25FeO40 Conversion Type Lithium Battery Electrodes".ACS OMEGA 4.1(2019):2344—2352. |
入库方式： OAI收割
来源：上海应用物理研究所
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