Strategy for High-Energy Li–S Battery Coupling with a Li Metal Anode and a Sulfurized Polyacrylonitrile Cathode

Park, Hyeona; Kang, Hyokyeong; Kim, Hyerim; Kansara, Shivam; Allen, Jan L.; Tran, Dat; Sun, H. Hohyun; Hwang, Jang-Yeon

doi:10.1021/acsami.3c08876

Cited by 4 publications

(1 citation statement)

References 63 publications

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“…Moreover, the polarization voltage of the symmetrical battery was used for comparison (Figure S6), in which NaKC-FAF|NaKC-FAF exhibited a smaller polarization voltage. In the first five cycles, the coulombic efficiency was relatively low due to the irreversible consumption of Na + /K + by SPAN [16]. During the first 20 cycles, the specific capacities of the Na−SPAN and NaKC-FAF−SPAN batteries were maintained at 750 mAh g −1 without significant difference, indicating that Na and NaKC-FAF electrodes had almost no effect on the cycling performance in the initial stage.…”

Section: Resultsmentioning

confidence: 99%

A Novel Sodium–Potassium Anode Supported by Fluorinated Aluminum Foam

Lou,

Zhou,

et al. 2023

Materials

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Sodium–potassium (NaK) liquid alloy is a promising candidate for use as an anode material in sodium batteries because of its fluidity, which effectively suppresses the growth of sodium or potassium dendrites. However, the poor wettability of NaK alloy on conventional metal substrates is unfavorable for cell fabrication due to its strong surface tension. In this paper, low-density and low-cost fluorinated aluminum foam is used as a substrate support material for NaK liquid alloy. By combining low-surface-tension NaKC with fluorinated aluminum foam, we obtain a uniformly distributed and structurally stable electrode material. The composite electrode has a cycling stability of more than 3000 h in a symmetrical cell. Furthermore, when coupled with a sulfurized polyacrylonitrile cathode in carbonate electrolyte, it maintains excellent stability even after 800 cycles, with 72% of capacity retention.

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Section: Resultsmentioning

confidence: 99%