DataVXACS NanoPaper
journal article·2017-08-22Open access

Local Electric Field Facilitates High-Performance Li-Ion Batteries

Youwen Liu, Tengfei Zhou, Yang Zheng, Zhihai He, Chong Xiao, Wei Kong Pang, Wei Tong, Youming Zou, Bicai Pan, Zaiping Guo, Yi Xie

ACS Nano· Volume 11· Issue 8
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Source abstract

Abstract

By scrutinizing the energy storage process in Li-ion batteries, tuning Li-ion migration behavior by atomic level tailoring will unlock great potential for pursuing higher electrochemical performance. Vacancy, which can effectively modulate the electrical ordering on the nanoscale, even in tiny concentrations, will provide tempting opportunities for manipulating Li-ion migratory behavior. Herein, taking CuGeO 3 as a model, oxygen vacancies obtained by reducing the thickness dimension down to the atomic scale are introduced in this work. As the Li-ion storage progresses, the imbalanced charge distribution emerging around the oxygen vacancies could induce a local built-in electric field, which will accelerate the ions’ migration rate by Coulomb forces and thus have benefits for high-rate performance. Furthermore, the thus-obtained CuGeO 3 ultrathin nanosheets (CGOUNs)/graphene van der Waals heterojunctions are used as anodes in Li-ion batteries, which deliver a reversible specific capacity of 1295 mAh g –1 at 100 mA g –1, with improved rate capability and cycling performance compared to their bulk counterpart. Our findings build a clear connection between the atomic/defect/electronic structure and intrinsic properties for designing high-efficiency electrode materials.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storageNanomaterials

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

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

Affiliations

Hefei National Laboratory for Physical Sciences at the Microscale, CAS Centre for Excellence in Nanoscience, iCHEM, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China

Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials (AIIM), and School of Mechanical, Materials and Mechatronics Engineering, Faculty of Engineering and Information Sciences, University of Wollongong, North Wollongong, NSW 2500, Australia

Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, South-Central University for Nationalities, Wuhan, 430074, People’s Republic of China

High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, Anhui 230031, People’s Republic of China

Funding

Ministry of Education of the People's Republic of China · Ministry of Science and Technology of the People's Republic of China · Youth Innovation Promotion Association of the Chinese Academy of Sciences · Australian Research Council · National Natural Science Foundation of China

References (51)

Show source-provided references
1. 10.1126/science.121274110.1126/science.1212741 ↗
2. 10.1039/c1ee01598b10.1039/c1ee01598b ↗
3. 10.1021/cm901452z10.1021/cm901452z ↗
4. 10.1021/ja309143810.1021/ja3091438 ↗
5. 10.1002/adma.20090171010.1002/adma.200901710 ↗
6. 10.1038/nchem.208510.1038/nchem.2085 ↗
7. 10.1126/science.120915010.1126/science.1209150 ↗
8. 10.1038/nmat272510.1038/nmat2725 ↗
9. 10.1021/jacs.5b0874310.1021/jacs.5b08743 ↗
10. 10.1021/jacs.5b0367310.1021/jacs.5b03673 ↗
11. 10.1038/nnano.2014.610.1038/nnano.2014.6 ↗
12. 10.1021/ja208880f10.1021/ja208880f ↗
13. 10.1021/ja211266m10.1021/ja211266m ↗
14. 10.1021/ja511625910.1021/ja5116259 ↗
15. 10.1021/nl404466v10.1021/nl404466v ↗
16. 10.1002/anie.20160265310.1002/anie.201602653 ↗
17. 10.1038/srep1132610.1038/srep11326 ↗
18. 10.1039/c2ee21580b10.1039/c2ee21580b ↗
19. 10.1002/adfm.20150293810.1002/adfm.201502938 ↗
20. 10.1016/j.nanoen.2014.04.01110.1016/j.nanoen.2014.04.011 ↗
21. 10.1021/nn503582c10.1021/nn503582c ↗
22. 10.1126/science.125281710.1126/science.1252817 ↗
23. 10.1021/jacs.5b1029510.1021/jacs.5b10295 ↗
24. 10.1021/ja508515710.1021/ja5085157 ↗
25. 10.1021/jacs.5b1021210.1021/jacs.5b10212 ↗
26. 10.1002/aenm.20160043610.1002/aenm.201600436 ↗
27. 10.1038/nmat481010.1038/nmat4810 ↗
28. 10.1021/cm203100910.1021/cm2031009 ↗
29. 10.1002/adfm.20150385910.1002/adfm.201503859 ↗
30. 10.1002/adma.20110499310.1002/adma.201104993 ↗
31. 10.1126/science.124650110.1126/science.1246501 ↗
32. 10.1021/nn504120310.1021/nn5041203 ↗
33. 10.1002/aenm.20160002510.1002/aenm.201600025 ↗
34. 10.1021/acs.nanolett.5b0461010.1021/acs.nanolett.5b04610 ↗
35. 10.1021/nn401689910.1021/nn4016899 ↗
36. 10.1021/nn100740x10.1021/nn100740x ↗
37. 10.1021/nn506850e10.1021/nn506850e ↗
38. 10.1021/nl200773n10.1021/nl200773n ↗
39. 10.1021/nl400600x10.1021/nl400600x ↗
40. 10.1038/ncomms343110.1038/ncomms3431 ↗
41. 10.1039/c3ta12344h10.1039/c3ta12344h ↗
42. 10.1002/anie.20160934310.1002/anie.201609343 ↗
43. 10.1002/chem.20130011510.1002/chem.201300115 ↗
44. 10.1021/nl072715710.1021/nl0727157 ↗
45. 10.1002/smll.20130354810.1002/smll.201303548 ↗
46. 10.1021/ja501866r10.1021/ja501866r ↗
47. 10.1002/anie.20151097810.1002/anie.201510978 ↗
48. 10.1002/advs.20150002710.1002/advs.201500027 ↗
49. 10.1002/adma.20170039610.1002/adma.201700396 ↗
50. 10.1016/0927-0256(96)00008-010.1016/0927-0256(96)00008-0 ↗
51. 10.1103/PhysRevB.50.1795310.1103/PhysRevB.50.17953 ↗