Engineering of Li2SxSey cathode by reduction of multilayered graphene-embedded 2D MoSSe structure for high-performance lithium sulfur‑selenium hybrid battery
- Authors
- Bui, Hoa Thi; Jang, Hyungil; Han, Joonghee; Markus, Tjahjono Juan; Sung, Myung Mo; Kutwade, Vishnu V.; Patil, Supriya A.; Shrestha, Nabeen K.; Sharma, Ramphal; Han, Sung-Hwan
- Issue Date
- Nov-2023
- Publisher
- ELSEVIER
- Keywords
- 2D MoS x Se y; Multilayers graphene; lithium sulfur-selenium battery; Li2SxSey
- Citation
- JOURNAL OF ENERGY STORAGE, v.72, pp.1 - 10
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF ENERGY STORAGE
- Volume
- 72
- Start Page
- 1
- End Page
- 10
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/189666
- DOI
- 10.1016/j.est.2023.108295
- ISSN
- 2352-152X
- Abstract
- Since the S–Se combination as electrodes in batteries, hybrid composites for lithium sulfur‑selenium (LiS-Se) batteries have attracted substantial attention. In this work, we have synthesized MoSSe- multilayered graphene (MLG) (with two different ratios of S: Se precursor) by solvothermal method followed by the calcination of trapped organic solvent molecules at 800 °C to give graphene multilayer inside the 2D-MoSSe. As synthesized MoSSe-MLG-1 and MoSSe-MLG-2 were characterized by SEM, TEM, X-ray diffraction (XRD), XPS, and Raman techniques. Furthermore, MoSSe-MLG-1 and MoSSe-MLG-2 are attributed to in situ generated Li2SxSey active cathode material for advanced high-performance hybrid LiS-Se battery through the electrochemical lithiation of MoSSe-MLG-1 and MoSSe-MLG-2 structure at voltage down to 0.01 V vs Li+/Li. The ultra-fast reversible specific capacity for LiS-Se hybrid batteries was observed in the rate capability test: the specific capability was 1197mAh/g and recovered 1208mAh/g at current density 0.1A/g for MoSSe-MLG-1. The outstanding specific capacitance was obtained to 206mAh/ g of active material at the super high current density of 20A/g. After the hash rate capability test, the same cell showed a stable performance of 1000 cycles at the current density of 5A/g. There was no capacity fading after the full test with the 1197mAh/g at the current density of 0.1A/g.
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