2019
DOI: 10.1002/ange.201912171
|View full text |Cite
|
Sign up to set email alerts
|

High‐Entropy Layered Oxide Cathodes for Sodium‐Ion Batteries

Abstract: Material innovation on high‐performance Na‐ion cathodes and the corresponding understanding of structural chemistry still remain a challenge. Herein, we report a new concept of high‐entropy strategy to design layered oxide cathodes for Na‐ion batteries. An example of layered O3‐type NaNi0.12Cu0.12Mg0.12Fe0.15Co0.15Mn0.1Ti0.1Sn0.1Sb0.04O2 has been demonstrated, which exhibits the longer cycling stability (ca. 83 % of capacity retention after 500 cycles) and the outstanding rate capability (ca. 80 % of capacity … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

0
15
0

Year Published

2020
2020
2023
2023

Publication Types

Select...
9

Relationship

0
9

Authors

Journals

citations
Cited by 21 publications
(15 citation statements)
references
References 55 publications
(42 reference statements)
0
15
0
Order By: Relevance
“…Recently, Zhao et al 38 showed for Na-ion batteries that the high-entropy concept is beneficial for achieving stable cell capacities. Because NCM-type materials are common cathodes for Li-ion batteries, in the present work, the L-HEO structures were tested regarding the possibility to reversibly intercalate Li + ions (Fig.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Recently, Zhao et al 38 showed for Na-ion batteries that the high-entropy concept is beneficial for achieving stable cell capacities. Because NCM-type materials are common cathodes for Li-ion batteries, in the present work, the L-HEO structures were tested regarding the possibility to reversibly intercalate Li + ions (Fig.…”
Section: Resultsmentioning
confidence: 99%
“…As somewhat expected, the L-HEO material with the lowest degree of cation mixing showed the best cyclability and delivered the largest specific capacities. This suggests that, in principle, it should be possible to design next-generation L-HEOs for battery applications 38 , 40 , 41 . Nevertheless, the issue of cation mixing remains to be resolved and the specific capacities need to be increased 42 44 .…”
Section: Resultsmentioning
confidence: 99%
“…(C) The X‐ray diffraction patterns and structure of HEC (NaNi 0.12 Cu 0 . 12 Mg 0.12 Fe 0.15 Co 0.15 Mn 0.1 Ti 0.1 Sn 0.1 Sb 0.04 O 2 ) 35 . (D) Crystal structure of Li(HEC)F and X‐ray diffraction (XRD) patterns of Li(HEC)F, HEC is Mg 0.2 Co 0.2 Ni 0.2 Cu 0.2 Zn 0.2 O 13 .…”
Section: Introductionmentioning
confidence: 99%
“…[1][2][3][4][5][6][7][8][9] Although lithium-ion batteries (LIBs) have been successfully applied in portable electronic devices and electrical vehicles, their application in grid-scale energy storage systems is still hindered by the high cost and limited resources of lithium. [10][11][12][13][14] Alternative energy storage devices based on earth-abundant elements such as sodium, [15][16][17][18][19][20][21][22][23][24] potassium, [25][26][27][28][29][30][31] calcium, 32,33 and magnesium, [34][35][36][37][38] are attracting increasing attentions. Particularly, potassium-ion batteries (PIBs) are more promising due to the following merits: (i) relatively low standard reduction potential of potassium (only 110 mV higher than lithium), which is beneficial to achieve higher energy density; 39 (ii) abundance of potassium (2.09 wt.%) in the earth's crust (> 1200 times higher than that of lithium) exhibits remarkable cost advantage.…”
Section: Introductionmentioning
confidence: 99%