Advances and challenges of nanostructured electrodes for Li–Se batteries

Jin, Jun; Tian, Xiaocong; Srikanth, Narasimalu; Kong, Ling Bing; Zhou, Kun

doi:10.1039/c7ta01384a

Cited by 101 publications

(60 citation statements)

References 175 publications

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“…In Li–S batteries, one primary challenge is the so‐called shuttle effect, in which high‐order soluble polysulfides species (Li 2 S 6‐8 ) are formed and then transport to lithium metal anode during the charging process, which results in low Coulombic efficiency, continuous loss of sulfur, and insoluble agglomerates over prolonged cycling . Similarly, Se cathode also has the issue of shuttle effect . To reduce shuttle, several strategies have been developed, such as use of microporous carbon hosts, fabrication of core–shell structure, and adoption of interlayer cell configuration .…”

Section: Introductionmentioning

confidence: 99%

Phenyl Selenosulfides as Cathode Materials for Rechargeable Lithium Batteries

Cui

Ackerson

et al. 2018

Adv Funct Materials

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The SeSe bond in an organo-diselenide (RSeSeR, R is an organic group) can break in a 2e − reduction reaction, but it has limited capacity as a cathode material for rechargeable lithium-ion batteries. To increase its capacity, redox active species (e.g., sulfur) can be added in the middle of the selenium atoms. Herein, phenyl diselenide (PDSe, PhSeSePh) is mixed with sulfur to form two hybrid compounds with 1:1 and 1:2 molar ratios, which almost double and triple the capacity of PDSe, respectively. Theoretical calculations suggest that phenyl selenosulfide (PDSe-S, PhSe-S-SePh) and phenyl selenodisulfide (PDSe-S 2 , PhSe-SS-SePh) can form via addition reactions, which is supported by mass spectrometry analysis. The hybrid materials exhibit three highly reversible redox plateaus and enhanced cycling stability due to the reduced solubility of the discharge products. PDSe-S and PDSe-S 2 show initial capacities of 252 and 330 mAh g −1 , respectively, followed by stable cycling performance with a capacity retention of >73% after 200 cycles at C/5 rate. In addition, they show steady rate capabilities. This study reports a novel strategy to increase the electrochemical performance of organo-diselenide by addition of sulfur.

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Section: Introductionmentioning

confidence: 99%

Phenyl Selenosulfides as Cathode Materials for Rechargeable Lithium Batteries

Cui

Ackerson

et al. 2018

Adv Funct Materials

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“…Designing second building units (SBU) by combining Se and conductive agents can reduce the solubility of polyselenides in electrolytes . Xu et al.…”

Section: Mof‐derived Cathode Materials For Li‐s/li‐se Batteriesmentioning

confidence: 99%

Metal‐Organic‐Framework‐Based Cathodes for Enhancing the Electrochemical Performances of Batteries: A Review

2019

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Owing to their huge specific surface area, high porosity, abundant metal active sites, adjustable structure, and tunable pore diameters, metal-organic frameworks (MOFs) have attracted much attention from the battery scientists and technologists. MOFs have proven to be versatile precursors of cathode materials for batteries, and MOF-based cathodes have already exhibited excellent electrochemical performances. Herein, we review some recent advances in developing MOF-derived cathodes for lithium-/sodium-ion batteries, lithium-sulfur batteries, lithium-air batteries, and lithium-selenium batteries. We also describe the synthetic mechanism, characterization of MOF-derived cathodes, and the origin of the enhanced electrochemical performances. Finally, we point out some challenges and opportunities for the future development of MOF-based cathodes.

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“…In addition, metal oxides have gained scientists' attention because of their high specific capacity and have been considered and investigated as alternative anodes in recent years [11][12][13]. There are three types of electrode reaction mechanisms: alloying-dealloying, intercalation-deintercalation, and conversion (redox) [14,15].…”

Section: Introductionmentioning

confidence: 99%

“…There are three types of electrode reaction mechanisms: alloying-dealloying, intercalation-deintercalation, and conversion (redox) [14,15]. Jin et al [11] studied a high-energy density, high-theoretical capacity anode electrode material that comprised Se-based oxides and had a reaction mechanism based on Li-Se alloys. Han et al [12] reported a new material of KNb 5 O 13 that relied on the intercalation-deintercalation reaction.…”

Section: Introductionmentioning

confidence: 99%

LaNiO3 as a Novel Anode for Lithium-Ion Batteries

Zhang

et al. 2020

Trans. Tianjin Univ.

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Lithium-ion batteries (LIBs) have been developed for over 30 years; however, existing electrode materials cannot satisfy the increasing requirements of high-energy density, stable cycling, and low cost. Here, we present a perovskite-type LaNiO 3 oxide (LNO) as a new negative electrode material. LNO was successfully synthesized by a sol-gel method. The microstructure and electrochemical performance of LNO calcined at various temperatures have been systematically investigated. The LNO electrode shows a high rate capability and long cycling stability. In a Crate test, a specific capacity of 77 mAh/g was exhibited at 6 C. LNO can also deliver a specific capacity of 92 mAh/g after 200 cycles at 1 C. This paper presents a type of binary metal oxide as a new anode material for high-performance LIBs.

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Advances and challenges of nanostructured electrodes for Li–Se batteries

Abstract: In this review, the recent advances of nanostructured electrodes for lithium–selenium batteries and their characterizations and mechanisms are reviewed and discussed.

Cited by 101 publications

References 175 publications

Phenyl Selenosulfides as Cathode Materials for Rechargeable Lithium Batteries

Phenyl Selenosulfides as Cathode Materials for Rechargeable Lithium Batteries

Metal‐Organic‐Framework‐Based Cathodes for Enhancing the Electrochemical Performances of Batteries: A Review

LaNiO3 as a Novel Anode for Lithium-Ion Batteries

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