Recent advances in rare earth compounds for lithium–sulfur batteries

Lin, Bixia; Zhang, Yuanyuan; Li, Weifeng; Huang, Junkang; Yang, Yong; Or, Siu Wing; Xing, Zhenyu; Guo, Shaojun

doi:10.1016/j.esci.2023.100180

Cited by 12 publications

(3 citation statements)

References 84 publications

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“…However, there is still a gap in capacity compared to high-energy density substances such as S electrodes. [37][38][39] CuSe-AHP exhibits a capacity of 121 mA h g −1 aer 200 cycles at 200 mA g −1 (Fig. 2g, capacity retention rate of 75.4%), much higher than that of CuSe (49 mA h g −1 , capacity retention rate of 33.1%).…”

Section: Resultsmentioning

confidence: 95%

Copper selenide/amino hyperbranched polymer as an organic/inorganic hybrid composite cathode for rechargeable magnesium batteries

Ran,

Li,

et al. 2024

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 95%

Copper selenide/amino hyperbranched polymer as an organic/inorganic hybrid composite cathode for rechargeable magnesium batteries

Ran,

Li,

et al. 2024

J. Mater. Chem. A

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“…Currently, lithium-ion batteries (LIBs) represent state-of-the-art battery technology, which finds wide applications in electronics, electric vehicles, and other areas . To pursue higher energy density, both academia and industry are actively investigating Li metal and solid-state batteries, − which are aimed for long-range electric vehicles. In addition to Li-based batteries, Na, K, and Zn batteries have also gained tremendous attention for stationary energy storage, − due to their high abundance and low cost.…”

Section: Introductionmentioning

confidence: 99%

Building a Rechargeable Voltaic Battery via Reversible Oxide Anion Insertion in Copper Electrodes

Gomez,

Oli,

Chang

et al. 2024

ACS Appl. Energy Mater.

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Voltaic pile, the very first battery built by humanity in 1800, plays a seminal role in battery development history. However, the premature design leads to the inevitable copper ion dissolution issue, which dictates its primary battery nature. To address this issue, solid-state electrolytes, ion exchange membranes, and/or sophisticated electrolytes are widely utilized, leading to high costs and complicated cell configuration. Herein, we build a rechargeable zinc−copper voltaic battery from simple and cheap electrolyte/ separator materials, thus eliminating the need to use the above components. Notably, our battery leverages the Zn 4 SO 4 (OH) 6 •xH 2 O precipitation in ZnSO 4 electrolytes, a common side reaction in zinc batteries, to provide a "locally alkaline" environment for copper electrodes. Consequently, oxide (O 2− ) anion insertion takes place and readily transforms copper to copper(I) oxide (Cu 2 O) without any copper ion dissolution issue. Therefore, this battery realizes a high capacity of ∼370 mA h g −1 and a long cycling of ∼500 cycles. Our work provides an innovative approach to stabilize anion insertion in metal electrodes for energy storage.

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“…10 The natural abundance of elemental sulfur and its low cost means that the life cycle impact of Li-S batteries on the environment will be relatively low. 10,11 However, the practical application of Li-S batteries is hindered by both capacity fading and lithium dendrite formation upon cycling. 5,12 Additionally, the redox reactions at the cathode result in the formation of polysulfides (PSs) that lead to the loss of active material.…”

mentioning

confidence: 99%

The Role of the Anion in Concentrated Electrolytes for Lithium-Sulfur Batteries

Kottarathil,

Slim,

Ahmad Ishfaq

et al. 2024

J. Electrochem. Soc.

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Highly concentrated electrolytes show promise in enhancing lithium-sulfur (Li-S) battery performance by mitigating polysulfide (PS) solubility. The role of the salt anion for the performance improvement(s) is however not well understood. Here a systematic characterization using (concentrated) electrolytes based on three different salts: LiTFSI, LiTf, and LiTDI, in a common DOL:DME solvent mixture is reported for a wide range of physicochemical and electrochemical properties: ionic conductivity, density, viscosity, speciation, and PS solubility. While increased salt concentration in general improves Li-S battery performance, the role of the salt anion introduces complexity. The 2 m LiTDI-based electrolyte, with a slightly higher viscosity and lower PS solubility, outperforms the LiTFSI-based counterpart in terms of accessible reversible capacity. Conversely, the 2 m LiTf-based electrolyte exhibits subpar performance due to the formation of ionic aggregates that renders more free solvent and, therefore higher PS solubility, which, however can be improved by using a 5 m concentrated electrolyte. Hence, using electrolyte salt concentration as a rational design route demands an understanding of the local molecular structure, largely determined/affected by the choice of anion, as well as how it connects to the global properties and in the end improved Li-S battery performance.

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Recent advances in rare earth compounds for lithium–sulfur batteries

Cited by 12 publications

References 84 publications

Copper selenide/amino hyperbranched polymer as an organic/inorganic hybrid composite cathode for rechargeable magnesium batteries

Copper selenide/amino hyperbranched polymer as an organic/inorganic hybrid composite cathode for rechargeable magnesium batteries

Building a Rechargeable Voltaic Battery via Reversible Oxide Anion Insertion in Copper Electrodes

The Role of the Anion in Concentrated Electrolytes for Lithium-Sulfur Batteries

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