High-Energy/Power and Low-Temperature Cathode for Sodium-Ion Batteries: In Situ XRD Study and Superior Full-Cell Performance
文献类型：期刊论文
| 作者 | Guo, Jin-Zhi1; Wang, Peng-Fei2,3; Wu, Xing-Long1; Zhang, Xiao-Hua1; Yan, Qingyu4; Chen, Hong5,6; Zhang, Jing-Ping1; Guo, Yu-Guo2,3 |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2017-09-06 |
| 卷号 | 29期号:33 |
| 关键词 | Cathodes High Energy Low-temperature Performance Sodium-ion Full Batteries Sodium-super-ion Conductor |
| 英文摘要 | Sodium-ion batteries (SIBs) are still confronted with several major challenges, including low energy and power densities, short-term cycle life, and poor low-temperature performance, which severely hinder their practical applications. Here, a high-voltage cathode composed of Na3V2(PO4)(2)O2F nano-tetraprisms (NVPF-NTP) is proposed to enhance the energy density of SIBs. The prepared NVPF-NTP exhibits two high working plateaux at about 4.01 and 3.60 V versus the Na+/ Na with a specific capacity of 127.8 mA h g(-1). The energy density of NVPF-NTP reaches up to 486 W h kg(-1), which is higher than the majority of other cathode materials previously reported for SIBs. Moreover, due to the low strain (approximate to 2.56% volumetric variation) and superior Na transport kinetics in Na intercalation/extraction processes, as demonstrated by in situ X-ray diffraction, galvanostatic intermittent titration technique, and cyclic voltammetry at varied scan rates, the NVPF-NTP shows long-term cycle life, superior low-temperature performance, and outstanding high-rate capabilities. The comparison of Ragone plots further discloses that NVPF-NTP presents the best power performance among the state-of-the-art cathode materials for SIBs. More importantly, when coupled with an Sb-based anode, the fabricated sodium-ion full-cells also exhibit excellent rate and cycling performances, thus providing a preview of their practical application. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/39314]  |
| 专题 | 化学研究所_分子纳米结构与纳米技术实验室 |
| 作者单位 | 1.Northeast Normal Univ, Fac Chem, Natl & Local United Engn Lab Power Batteries, Changchun 130024, Jilin, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, CAS Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China 4.Nanyang Technol Univ, Sch Mat Sci & Engn, 50 Nanyang Ave, Singapore 639798, Singapore 5.SLAC Natl Accelerator Lab, Stanford Synchrotron Radiat Lightsource, Menlo Pk, CA 94025 USA 6.Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA |
| 推荐引用方式 GB/T 7714 | Guo, Jin-Zhi,Wang, Peng-Fei,Wu, Xing-Long,et al. High-Energy/Power and Low-Temperature Cathode for Sodium-Ion Batteries: In Situ XRD Study and Superior Full-Cell Performance[J]. ADVANCED MATERIALS,2017,29(33). |
| APA | Guo, Jin-Zhi.,Wang, Peng-Fei.,Wu, Xing-Long.,Zhang, Xiao-Hua.,Yan, Qingyu.,...&Guo, Yu-Guo.(2017).High-Energy/Power and Low-Temperature Cathode for Sodium-Ion Batteries: In Situ XRD Study and Superior Full-Cell Performance.ADVANCED MATERIALS,29(33). |
| MLA | Guo, Jin-Zhi,et al."High-Energy/Power and Low-Temperature Cathode for Sodium-Ion Batteries: In Situ XRD Study and Superior Full-Cell Performance".ADVANCED MATERIALS 29.33(2017). |
入库方式： OAI收割
来源：化学研究所
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