DataVXACS Applied Materials & InterfacesPaper
journal article·2015-07-29Open access

Improve First-Cycle Efficiency and Rate Performance of Layered-Layered Li1.2Mn0.6Ni0.2O2Using Oxygen Stabilizing Dopant

Jinfeng Li, Chun Zhan, Jun Lu, Yifei Yuan, Reza Shahbazian-Yassar, Xinping Qiu, Khalil Amine

ACS Applied Materials & Interfaces· Volume 7· Issue 29
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Source abstract

Abstract

The poor first-cycle Coulombic efficiency and rate performance of the Li-rich layered-layered oxides are associated with oxygen gas generation in the first activation charging and sluggish charge transportation along the layers. In this work, we report that barium doping improves the first-cycle efficiency of Li-rich layered-layered Li1.2Mn0.6Ni0.2O2 via suppression of the oxidation of O(2-) ions in the first charging. This effect can be attributed to the stabilizing effect of the barium cations on the oxygen radical intermediates generated during the oxidation of O(2-). Meanwhile, because the stabilized oxygen radicals likely facilitate the charge transportation in the layered-layered structure, the barium-doped Li1.2Mn0.6Ni0.2O2 exhibits significant improvement in rate performance. Stabilizing the oxygen radicals could be a promising strategy to improve the electrochemical performance of Li-rich layered-layered oxides.
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Research context

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Supercapacitor Materials and Fabrication

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, China

Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States

Department of Materials Science and Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, Michigan 49931, United States

Funding

Division of Civil, Mechanical and Manufacturing Innovation · Division of Materials Research · National Natural Science Foundation of China · Natural Science Foundation of Beijing Municipality · Ministry of Science and Technology of the People's Republic of China · Argonne National Laboratory, Office of Science · Basic Energy Sciences

References (32)

Show source-provided references
1. 10.1002/aenm.20120084210.1002/aenm.201200842 ↗
2. 10.1149/1.311080310.1149/1.3110803 ↗
3. 10.1039/c3ta15236g10.1039/c3ta15236g ↗
4. 10.1021/cm300563410.1021/cm3005634 ↗
5. 10.1021/cm040186r10.1021/cm040186r ↗
6. 10.1016/j.jpowsour.2005.03.10410.1016/j.jpowsour.2005.03.104 ↗
7. 10.1021/cm030047u10.1021/cm030047u ↗
8. 10.1039/C4TA06309K10.1039/C4TA06309K ↗
9. Wang F. · Int. J. Electrochem. Sci. · 2014 · 9 · 618210.1016/S1452-3981(23)10879-0 ↗
10. 10.1021/cm060729s10.1021/cm060729s ↗
11. 10.1149/2.100204jes10.1149/2.100204jes ↗
12. 10.1016/j.elecom.2009.01.02510.1016/j.elecom.2009.01.025 ↗
13. 10.1149/1.148001410.1149/1.1480014 ↗
14. 10.1016/j.elecom.2006.06.03010.1016/j.elecom.2006.06.030 ↗
15. 10.1016/j.nanoen.2013.05.01310.1016/j.nanoen.2013.05.013 ↗
16. 10.1039/b702425h10.1039/b702425h ↗
17. 10.1021/jz400032v10.1021/jz400032v ↗
18. 10.1149/1.140799410.1149/1.1407994 ↗
19. 10.1039/c3ta11703k10.1039/c3ta11703k ↗
20. 10.1021/jp506731v10.1021/jp506731v ↗
21. 10.1016/j.jpowsour.2007.11.07710.1016/j.jpowsour.2007.11.077 ↗
22. 10.1149/1.159441110.1149/1.1594411 ↗
23. 10.1149/1.219476410.1149/1.2194764 ↗
24. 10.1149/1.357941810.1149/1.3579418 ↗
25. 10.1149/2.059204jes10.1149/2.059204jes ↗
26. 10.1039/c1ee01131f10.1039/c1ee01131f ↗
27. 10.1021/jp102050s10.1021/jp102050s ↗
28. 10.1007/s10008-013-2127-y10.1007/s10008-013-2127-y ↗
29. 10.1016/j.nanoen.2015.04.01310.1016/j.nanoen.2015.04.013 ↗
30. 10.1016/j.nanoen.2014.03.01310.1016/j.nanoen.2014.03.013 ↗
31. 10.1021/nl504891310.1021/nl5048913 ↗
32. 10.1111/j.1551-2916.2012.05452.x10.1111/j.1551-2916.2012.05452.x ↗