journal article·2019-04-22Open access

Simultaneous Immobilization and Conversion of Polysulfides on Co3O4–CoN Heterostructured Mediators toward High-Performance Lithium–Sulfur Batteries

Jin Wang, Kuikui Xiao, Bo Ouyang, Lili Zhang, Hao Yang, Jilei Liu, Pei Liang, Rajdeep Singh Rawat, Zexiang Shen

ACS Applied Energy Materials· Volume 2· Issue 4

Abstract

Lithium–sulfur (Li–S) batteries exhibit great potential as a next-generation rechargeable battery system due to their high energy density, natural abundance, and nontoxicity. Nevertheless, the insulated nature of S and Li2S and the electrochemical instability of intermediate lithium polysulfides (LiPS) obstruct the commercialization of Li–S technologies. Herein, a heterophase Co3O4–CoN sulfur host combined with the merits of efficient polysulfide anchoring (Co3O4) and high conductivity (CoN) is reported to boost Li–S battery performance. Such porous Co3O4–CoN heterostructures endow the intermediate LiPS with the instantaneous immobilization–diffusion–conversion process, thus accelerating redox kinetics and alleviating the polysulfide shuttling. The assembled cathode based on the Co3O4–CoN/CC electrode exhibits a high initial capacity of 1225 mAh g–1 at 0.5 C with excellent rate performance (887 mAh g–1 at 3 C), and the specific capacity can be well maintained to 627 mAh g–1 even after 500 cycles at 3 C. Our work provides an efficient strategy for the rational design of comprehensive host materials enabling simultaneous LiPS immobilization and conversion and will give further impetus to the practical use of Li–S batteries.
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Research context

OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Advanced battery technologies research

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

Affiliations

College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, P. R. China

Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore

College of Materials Science and Engineering, Hunan Province Key Laboratory for Spray Deposition Technology and Application, Hunan University, Changsha 410082, P. R. China

Natural Sciences and Science Education, National Institute of Education, Nanyang Technological University, Singapore 637616, Singapore

Heterogeneous Catalysis, Institute of Chemical Engineering and Sciences, A*Star, 1 Pesek Road, Jurong Island 627833, Singapore

College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, P. R. China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province · Ministry of Education - Singapore · Ministry of Education of the People's Republic of China · Priority Academic Program Development of Jiangsu Higher Education Institutions

References (50)

Show source-provided references
1. 10.1038/nmat319110.1038/nmat3191 ↗
2. 10.1021/ar300179v10.1021/ar300179v ↗
3. 10.1002/aenm.20160163010.1002/aenm.201601630 ↗
4. 10.1002/adma.20160682310.1002/adma.201606823 ↗
5. 10.1002/adma.20140511510.1002/adma.201405115 ↗
6. 10.1039/c1ee01219c10.1039/c1ee01219c ↗
7. 10.1002/aenm.20150040810.1002/aenm.201500408 ↗
8. 10.1039/C5CS00410A10.1039/C5CS00410A ↗
9. 10.1002/aenm.20150021110.1002/aenm.201500211 ↗
10. 10.1021/nl200658a10.1021/nl200658a ↗
11. 10.1038/ncomms494310.1038/ncomms4943 ↗
12. 10.1002/smll.20170285310.1002/smll.201702853 ↗
13. 10.1002/aenm.20170288910.1002/aenm.201702889 ↗
14. 10.1039/C6TA10142A10.1039/C6TA10142A ↗
15. 10.1149/2.0441504jes10.1149/2.0441504jes ↗
16. 10.1002/aenm.20160287610.1002/aenm.201602876 ↗
17. 10.1002/adma.20160273410.1002/adma.201602734 ↗
18. 10.1002/anie.20120672010.1002/anie.201206720 ↗
19. 10.1021/nl502238b10.1021/nl502238b ↗
20. 10.1002/admi.20160050810.1002/admi.201600508 ↗
21. 10.1038/ncomms876010.1038/ncomms8760 ↗
22. 10.1002/advs.20180062110.1002/advs.201800621 ↗
23. 10.1039/C7TA08620B10.1039/C7TA08620B ↗
24. 10.1021/nl504963e10.1021/nl504963e ↗
25. 10.1002/advs.20170027010.1002/advs.201700270 ↗
26. 10.1073/pnas.161583711410.1073/pnas.1615837114 ↗
27. 10.1016/j.nanoen.2017.01.04010.1016/j.nanoen.2017.01.040 ↗
28. 10.1002/adma.20170270710.1002/adma.201702707 ↗
29. 10.1002/aenm.20150148010.1002/aenm.201501480 ↗
30. 10.1021/acs.nanolett.5b0416610.1021/acs.nanolett.5b04166 ↗
31. 10.1038/s41565-018-0061-y10.1038/s41565-018-0061-y ↗
32. 10.1021/acsnano.7b0194510.1021/acsnano.7b01945 ↗
33. 10.1021/acs.nanolett.7b0408410.1021/acs.nanolett.7b04084 ↗
34. 10.1038/ncomms1462710.1038/ncomms14627 ↗
35. 10.1002/adfm.20170639110.1002/adfm.201706391 ↗
36. 10.1038/s41467-018-03116-z10.1038/s41467-018-03116-z ↗
37. 10.1002/adma.20130428810.1002/adma.201304288 ↗
38. 10.1016/j.nanoen.2017.09.01810.1016/j.nanoen.2017.09.018 ↗
39. 10.1002/aenm.20150231310.1002/aenm.201502313 ↗
40. 10.1039/C7TA10272K10.1039/C7TA10272K ↗
41. 10.1021/jp909785g10.1021/jp909785g ↗
42. 10.1103/PhysRevB.54.1116910.1103/PhysRevB.54.11169 ↗
43. 10.1063/1.47293310.1063/1.472933 ↗
44. 10.1088/0953-8984/22/2/02220110.1088/0953-8984/22/2/022201 ↗
45. 10.1021/acs.nanolett.5b0036710.1021/acs.nanolett.5b00367 ↗
46. 10.1016/j.carbon.2016.09.02110.1016/j.carbon.2016.09.021 ↗
47. 10.1021/cm504466710.1021/cm5044667 ↗
48. 10.1002/adfm.20150469510.1002/adfm.201504695 ↗
49. 10.1103/PhysRevB.76.16511910.1103/PhysRevB.76.165119 ↗
50. 10.1039/C8TA05612A10.1039/C8TA05612A ↗