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| Solvent-free mechanochemical synthesis of Na-rich Prussian white cathodes for high-performance Na-ion batteries | |
| He, Shunli1,4; Zhao, Junmei1,3,4; Rong, Xiaohui2; Xu, Chunliu1; Zhang, Qiangqiang2; Shen, Xing1,4; Qi, Xingguo2; Li, Yuqi2; Li, Xinyan2; Niu, Yaoshen2; Li, Xiaowei1,4; Han, Shuai2; Gu, Lin2; Liu, Huizhou1; Hu, Yong-Sheng2 | |
| 2022-01-15 | |
| Source Publication | CHEMICAL ENGINEERING JOURNAL
 |
| ISSN | 1385-8947 |
| Volume | 428Pages:9 |
| Abstract | Prussian blue analogs (PBAs) with rigid open framework are promising low-cost and easily prepared cathodes for Na-ion batteries. However, their electrochemical performances are hindered from the crystal vacancies and interstitial water in a traditional aqueous co-precipitation process. Herein, we explore a solvent-free mechanochemical protocol to prepare a monoclinic Na1.94Mn[Fe0.99(CN)6]0.95.0.05.1.92H2O via regulating the crystal water in precursors. The interstitial water of NaMHCF can be further reduced through increasing the drying temperature. Ex-situ XRD confirms that the monoclinic phase transformed to the rhombohedral structure during the first cycle, and a highly reversible multi-phase evolution among rhombohedral, cubic, and Na-poor phase upon Na+ (de)intercalations occurred from the second cycle on. Finally, it delivers a specific capacity of 168.8 mA h g-1 with a stable average voltage of 3.44 V at 10 mA g-1, showing ultra-high rate capability (127 mA h g-1 at 2000 mA g-1) and cycling stability (87.6% capacity retention after 100 cycles at 100 mA g-1) for half cells. For the full cell of NaMHCF/NaTi2(PO4)3, it can deliver an ultra-stable cycle performance, retaining 84% capacity after 500 cycles at 100 mA g-1. Our work provides a facile avenue to prepare monoclinic NaMHCF with low water and vacancies for high-performance Na-ion batteries. |
| Keyword | Solvent-free Mechanochemical protocol Prussian white Phase evolution Interstitial water |
| DOI | 10.1016/j.cej.2021.131083 |
| Language | 英语 |
| WOS Keyword | SUPERIOR CATHODE ; BLUE ANALOGS ; CHALLENGES |
| Funding Project | National Natural Science Foundation of China[51872289] ; National Natural Science Foundation of China[52072370] ; DNL Cooperation Fund, CAS[DNL201914] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA21070500] ; Innovation Academy for Green Manufacture, CAS[IAGM2020C07] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Environmental ; Engineering, Chemical |
| Funding Organization | National Natural Science Foundation of China ; DNL Cooperation Fund, CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Innovation Academy for Green Manufacture, CAS |
| WOS ID | WOS:000729171100003 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/51377 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhao, Junmei; Rong, Xiaohui |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Key Lab Renewable Energy,Beijing Key Lab New Ener, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China |
| First Author Affilication | Center of lonic Liquids and Green Engineering |
| Corresponding Author Affilication | Center of lonic Liquids and Green Engineering |
| Recommended Citation GB/T 7714 | He, Shunli,Zhao, Junmei,Rong, Xiaohui,et al. Solvent-free mechanochemical synthesis of Na-rich Prussian white cathodes for high-performance Na-ion batteries[J]. CHEMICAL ENGINEERING JOURNAL,2022,428:9. |
| APA | He, Shunli.,Zhao, Junmei.,Rong, Xiaohui.,Xu, Chunliu.,Zhang, Qiangqiang.,...&Hu, Yong-Sheng.(2022).Solvent-free mechanochemical synthesis of Na-rich Prussian white cathodes for high-performance Na-ion batteries.CHEMICAL ENGINEERING JOURNAL,428,9. |
| MLA | He, Shunli,et al."Solvent-free mechanochemical synthesis of Na-rich Prussian white cathodes for high-performance Na-ion batteries".CHEMICAL ENGINEERING JOURNAL 428(2022):9. |
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