Nanofiber-based electrode current collector for high-energy Li-S batteries towards practical application for energy storage

Shan, Zhenzhen; Li, Xiaoxiong; Li, Xiaolong; He, Yusen; Guo, Yitong; Wang, Guangshuo; Geng, Yamin; Chang, Guoqing; Li, Qiang

doi:10.1016/j.apsusc.2023.159218

Applied Surface Science

2024

DOI: 10.1016/j.apsusc.2023.159218

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Nanofiber-based electrode current collector for high-energy Li-S batteries towards practical application for energy storage

Zhenzhen Shan,

Xiaoxiong Li,

Xiaolong Li

et al.

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Cited by 2 publications

References 38 publications

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Supramolecular macrocycle grafted Nb-MXene nanosheets constructing self-supporting framework for high-performance lithium-sulphur batteries

Liu,

He,

Liu

et al. 2025

Applied Surface Science

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Supramolecular macrocycle grafted Nb-MXene nanosheets constructing self-supporting framework for high-performance lithium-sulphur batteries

Liu,

He,

Liu

et al. 2025

Applied Surface Science

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A Lifetime Evaluation Method for Lithium-Sulfur Batteries

Okanishi,

Hiraoka,

Watanabe

et al. 2024

J. Electrochem. Soc.

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Lithium-sulfur (Li-S) batteries are attracting significant attention because of their high capacity and high energy density. For Li-S batteries using highly concentrated sulfolane-based electrolytes (i.e., sparingly solvating electrolytes for Li2Sx) and S8 active materials, we developed a method of lifetime testing to evaluate the dynamic and static degradation behavior. Short- to medium-term discharge/charge tests and long-term storage tests were conducted. The capacity degradation after cycling in the medium term was attributed to changes in the utilization of long- and short-chain Li2Sx due to the incomplete recovery to S8. Storage tests were conducted under different temperature and state-of-charge (SOC) conditions. The discharge capacity at SOC70% decreased significantly more than that at SOC100%, demonstrating the difference in degradation behavior compared to that of typical lithium-ion batteries. The capacity retention rate decreased linearly with storage time up to approximately 9 months, revealing that degradation was accelerated by 2 times at SOC100% compared with that at SOC0%, from a simple liner analysis. The capacity also decreased with increasing storage temperature, exhibiting ~2.4 times more degradation at 333.1 K than at 303.2 K. This may be due to the enhanced dissolution of the Li2Sx reaction intermediates in the electrolyte and the redox-shuttle effect.

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Nanofiber-based electrode current collector for high-energy Li-S batteries towards practical application for energy storage

Cited by 2 publications

References 38 publications

Supramolecular macrocycle grafted Nb-MXene nanosheets constructing self-supporting framework for high-performance lithium-sulphur batteries

Supramolecular macrocycle grafted Nb-MXene nanosheets constructing self-supporting framework for high-performance lithium-sulphur batteries

A Lifetime Evaluation Method for Lithium-Sulfur Batteries

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