DataVXACS Energy LettersPaper
journal article·2017-05-12Open access

In situ Visualization of State-of-Charge Heterogeneity within a LiCoO2 Particle that Evolves upon Cycling at Different Rates

Yahong Xu, Enyuan Hu, Kai Zhang, Xuelong Wang, Valery Borzenets, Zhihong Sun, Piero Pianetta, Xiqian Yu, Yijin Liu, Xiao-Qing Yang, Hong Li

ACS Energy Letters· Volume 2· Issue 5
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Source abstract

Abstract

For designing new battery systems with higher energy density and longer cycle life, it is important to understand the degradation mechanism of the electrode material, especially at the individual particle level. Using in situ transmission X-ray microscopy (TXM) coupled to a pouch cell setup, the inhomogeneous Li distribution as well as the formation, population, and evolution of inactive domains in a single LiCoO 2 particle were visualized as it was cycled for many times. It is found that the percentage of the particle that fully recovered to the pristine state is strongly related to the cycling rate. Interestingly, we also observed the evolution of the inactive region within the particle during long-term cycling. The relationship between morphological degradation and chemical inhomogeneity, including the formation of unanticipated Co metal phase, is also observed. Our work highlights the capability of in situ TXM for studying the degradation mechanism of materials in LIBs.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research

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

Affiliations

College of Mechanical Engineering, Donghua University, Shanghai 200051, China

Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States

Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States

Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049, China

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

Funding

Office of Energy Efficiency and Renewable Energy · Office of Science · National Natural Science Foundation of China · Ministry of Science and Technology of China · National Key Research and Development Program of China

References (36)

Show source-provided references
1. 10.1038/3510464410.1038/35104644 ↗
2. 10.1021/cm901452z10.1021/cm901452z ↗
3. 10.1021/ja309143810.1021/ja3091438 ↗
4. 10.1021/cr020731c10.1021/cr020731c ↗
5. 10.1021/jacs.6b0393210.1021/jacs.6b03932 ↗
6. 10.1021/nn305065u10.1021/nn305065u ↗
7. 10.1021/jacs.5b0617810.1021/jacs.5b06178 ↗
8. 10.1021/nl401849t10.1021/nl401849t ↗
9. 10.1021/acs.nanolett.6b0160910.1021/acs.nanolett.6b01609 ↗
10. 10.1002/aenm.20130095010.1002/aenm.201300950 ↗
11. 10.1038/ncomms1410110.1038/ncomms14101 ↗
12. 10.1038/ncomms452910.1038/ncomms4529 ↗
13. 10.1016/j.nanoen.2016.08.03910.1016/j.nanoen.2016.08.039 ↗
14. 10.1038/ncomms788310.1038/ncomms7883 ↗
15. 10.1002/aenm.20140204010.1002/aenm.201402040 ↗
16. 10.1021/ja212192610.1021/ja2121926 ↗
17. 10.1038/ncomms1237210.1038/ncomms12372 ↗
18. 10.1126/science.aaf491410.1126/science.aaf4914 ↗
19. 10.1021/ja050697u10.1021/ja050697u ↗
20. 10.1126/science.124643210.1126/science.1246432 ↗
21. 10.1002/anie.20130123610.1002/anie.201301236 ↗
22. 10.1021/jp301879x10.1021/jp301879x ↗
23. 10.1016/0025-5408(80)90012-410.1016/0025-5408(80)90012-4 ↗
24. 10.1149/1.183659410.1149/1.1836594 ↗
25. 10.1002/1521-3773(20010917)40:18<3367::AID-ANIE3367>3.0.CO;2-A10.1002/1521-3773(20010917)40:18<3367::AID-ANIE3367>3.0.CO;2-A ↗
26. 10.1149/1.162887110.1149/1.1628871 ↗
27. 10.1149/1.151985010.1149/1.1519850 ↗
28. 10.1149/1.205926710.1149/1.2059267 ↗
29. 10.1063/1.362537710.1063/1.3625377 ↗
30. 10.1038/srep3440610.1038/srep34406 ↗
31. 10.1016/0167-2738(95)00231-610.1016/0167-2738(95)00231-6 ↗
32. 10.1002/aenm.20110002910.1002/aenm.201100029 ↗
33. 10.1149/1.162734710.1149/1.1627347 ↗
34. 10.1063/1.486322910.1063/1.4863229 ↗
35. 10.1107/S090904951101936410.1107/S0909049511019364 ↗
36. 10.1007/s00216-012-5818-910.1007/s00216-012-5818-9 ↗