journal article·2021-09-01

Microstructure-Controlled Li-Rich Mn-Based Cathodes by a Gas–Solid Interface Reaction for Tackling the Continuous Activation of Li2MnO3

Mengke Zhang, Lang Qiu, Yan Sun, Yang Song, Zhenguo Wu, Yuxia Liu, Zhiwei Yang, Yang Liu, Jun Zhang, Benhe Zhong, Xiaodong Guo

ACS Applied Materials & Interfaces· Volume 13· Issue 34
Publisher page

Abstract

Li-rich Mn-based cathodes have attracted much attention due to their high capacity stemming from anion redox above 4.5 V. However, the continuous activation of Li2MnO3 in Li-rich Mn-based materials, which correlates with O2 release and TM migration, is usually unfavorable to structural stability. Herein, based on a gas–solid interface reaction, we tackle this continuous activation phenomenon by restricting the capacity release of Li2MnO3 via NH4HCO3 treatment in the Li1.2Ni0.36Mn0.44O2 cathode. After modification, oxygen vacancies associated with the spinel phase are introduced on the surface. The 4 mol % NH4HCO3-modified material’s capacity starts at 182 mAh g–1 at 1 C instead of increasing from 173 to 186 mAh g–1 for 25 cycles in the pristine material. Meanwhile, it also exhibits an excellent capacity retention of 93.24% after 200 cycles (at 1 C), with a small voltage decay rate of 1.19 mV cycle–1.
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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

College of Chemical Engineering, Sichuan University, Chengdu 610065, P.R. China

School of Mechanical Engineering, Chengdu University, Chengdu 610106, P.R. China

The Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P.R. China

School of Materials Science and Engineering, Henan Normal University, XinXiang 453007, P.R. China

Ruyuan Dongyang Guangcixing Material Limited Company, Shaoguan, Guangdong 512710, P.R. China

Funding

State Key Laboratory of Polymer Materials Engineering · National Natural Science Foundation of China · Sichuan University postdoctoral interdisciplinary Innovation Fund · Sichuan Province Science and Technology Achievement Transfer and Trans-formation Project · Sichuan Provincial Department of Science and Technology · Distinguished Young Foundation of Sichuan Province · 2020 Strategic cooperation project between Sichuan University and Zigong Municipal People's Government

References (52)

Show source-provided references
1. 10.1021/ja108588y10.1021/ja108588y ↗
2. 10.1002/adma.20170557510.1002/adma.201705575 ↗
3. 10.1016/j.nanoen.2019.10410210.1016/j.nanoen.2019.104102 ↗
4. 10.1016/j.ces.2020.11633710.1016/j.ces.2020.116337 ↗
5. 10.1002/adma.20180376510.1002/adma.201803765 ↗
6. 10.1002/sus2.610.1002/sus2.6 ↗
7. 10.1002/aenm.20180049210.1002/aenm.201800492 ↗
8. 10.1002/sus2.1610.1002/sus2.16 ↗
9. 10.1002/aenm.20180397810.1002/aenm.201803978 ↗
10. 10.1016/j.nanoen.2019.06.01410.1016/j.nanoen.2019.06.014 ↗
11. 10.1002/sus2.510.1002/sus2.5 ↗
12. 10.1016/j.cej.2020.12631410.1016/j.cej.2020.126314 ↗
13. 10.1002/sus2.810.1002/sus2.8 ↗
14. 10.1016/j.nanoen.2020.10541710.1016/j.nanoen.2020.105417 ↗
15. 10.1002/sus2.1810.1002/sus2.18 ↗
16. 10.1038/s41560-018-0097-010.1038/s41560-018-0097-0 ↗
17. 10.1038/s41560-021-00780-210.1038/s41560-021-00780-2 ↗
18. 10.1002/aenm.20130095010.1002/aenm.201300950 ↗
19. 10.1021/jacs.9b0534910.1021/jacs.9b05349 ↗
20. 10.1038/nchem.252410.1038/nchem.2524 ↗
21. 10.1021/jacs.6b0511110.1021/jacs.6b05111 ↗
22. 10.1002/adfm.20200264310.1002/adfm.202002643 ↗
23. 10.1038/nchem.247110.1038/nchem.2471 ↗
24. 10.1038/s41467-018-03403-910.1038/s41467-018-03403-9 ↗
25. 10.1039/C5EE03048J10.1039/C5EE03048J ↗
26. 10.1038/s41467-017-02041-x10.1038/s41467-017-02041-x ↗
27. 10.1002/adfm.20150327610.1002/adfm.201503276 ↗
28. 10.1021/ja062027+10.1021/ja062027+ ↗
29. 10.1016/j.nanoen.2014.03.01310.1016/j.nanoen.2014.03.013 ↗
30. 10.1007/s12274-014-0563-310.1007/s12274-014-0563-3 ↗
31. 10.1002/adfm.20190919210.1002/adfm.201909192 ↗
32. 10.1002/admi.20170048310.1002/admi.201700483 ↗
33. 10.1021/acs.chemmater.7b0343410.1021/acs.chemmater.7b03434 ↗
34. 10.1039/D0TA05429A10.1039/D0TA05429A ↗
35. 10.1002/aenm.20170070810.1002/aenm.201700708 ↗
36. 10.1038/ncomms1210810.1038/ncomms12108 ↗
37. 10.1038/s41565-019-0428-810.1038/s41565-019-0428-8 ↗
38. 10.1039/D0TA02517H10.1039/D0TA02517H ↗
39. 10.1002/anie.20200062810.1002/anie.202000628 ↗
40. Molenda J. · Mater. Sci.-Pol. · 2006 · 24 · 75
41. 10.1021/nl502980k10.1021/nl502980k ↗
42. 10.1002/aenm.20180309410.1002/aenm.201803094 ↗
43. 10.1021/nl500486y10.1021/nl500486y ↗
44. 10.1021/nl302249v10.1021/nl302249v ↗
45. 10.1021/acs.jpclett.7b0142510.1021/acs.jpclett.7b01425 ↗
46. 10.1002/aenm.20200263110.1002/aenm.202002631 ↗
47. 10.1021/cm504597810.1021/cm5045978 ↗
48. 10.1021/acs.chemmater.5b0061710.1021/acs.chemmater.5b00617 ↗
49. 10.1021/jp312658q10.1021/jp312658q ↗
50. 10.1002/aenm.20180396310.1002/aenm.201803963 ↗
51. 10.1038/s41560-018-0207-z10.1038/s41560-018-0207-z ↗
52. 10.1002/adfm.20140043610.1002/adfm.201400436 ↗