E-viri
Recenzirano
-
Wang, Peng‐Fei; Weng, Mouyi; Xiao, Yao; Hu, Zongxiang; Li, Qinghao; Li, Meng; Wang, Yi‐Ding; Chen, Xin; Yang, Xinan; Wen, Yuren; Yin, Ya‐Xia; Yu, Xiqian; Xiao, Yinguo; Zheng, Jiaxin; Wan, Li‐Jun; Pan, Feng; Guo, Yu‐Guo
Advanced materials (Weinheim), 10/2019, Letnik: 31, Številka: 43Journal Article
Sodium‐based layered oxides are among the leading cathode candidates for sodium‐ion batteries, toward potential grid energy storage, having large specific capacity, good ionic conductivity, and feasible synthesis. Despite their excellent prospects, the performance of layered intercalation materials is affected by both a phase transition induced by the gliding of the transition metal slabs and air‐exposure degradation within the Na layers. Here, this problem is significantly mitigated by selecting two ions with very different MO bond energies to construct a highly ordered Ni6‐ring superstructure within the transition metal layers in a model compound (NaNi2/3Sb1/3O2). By virtue of substitution of 1/3 nickel with antimony in NaNiO2, the existence of these ordered Ni6‐rings with super‐exchange interaction to form a symmetric atomic configuration and degenerate electronic orbital in layered oxides can not only largely enhance their air stability and thermal stability, but also increase the redox potential and simplify the phase‐transition process during battery cycling. The findings reveal that the ordered Ni6‐ring superstructure is beneficial for constructing highly stable layered cathodes and calls for new paradigms for better design of layered materials. Two ions with very different MO bond energy are selected to construct a highly ordered Ni6‐ring superstructure within transition metal layers in a model compound (NaNi2/3Sb1/3O2). The formed Ni6‐rings with super‐exchange interaction by Ni/Sb ordering can greatly enhance the air stability and thermal stability of layered cathodes, increase the redox potential, and simplify the phase‐transition process during battery cycling.
Avtor
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Vnos na polico
Trajna povezava
- URL:
Faktor vpliva
Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
---|
Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
---|
Vir: Osebne bibliografije
in: SICRIS
To gradivo vam je dostopno v celotnem besedilu. Če kljub temu želite naročiti gradivo, kliknite gumb Nadaljuj.