Alloying of Alkali Metals with Tellurene

Jain, Rishabh; Yuan, Yifei; Singh, Yashpal; Basu, Sugato; Wang, Dawei; Yang, Aijun; Wang, Xiaohua; Rong, Mingzhe; Lee, Ho Jin; Frey, David; Khadka, Rajan; Hundekar, Prateek; Kim, Sang Ouk; Han, Fudong; Wang, Lin‐Wang; Mitlin, David; Shahbazian‐Yassar, Reza; Koratkar, Nikhil

doi:10.1002/aenm.202003248

Cited by 14 publications

(20 citation statements)

References 46 publications

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“…Table shows the Li/Na/K ion diffusivities from a number of reports, obtained through diverse experimental techniques. In a broad range of electrode materials including hard carbon, ,, black phosphorus/graphite composite, and tellurene, Na and K ions show lower solid-state diffusivities. The low solid-state diffusivity of Na + /K + in the carbon host and within the Na 2 S x /K 2 S x compounds will account for the kinetics’ sluggishness.…”

Section: Polysulfide (Ps) Shuttle and Sluggish Reaction Kinetics In M...mentioning

confidence: 99%

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Review of Multifunctional Separators: Stabilizing the Cathode and the Anode for Alkali (Li, Na, and K) Metal–Sulfur and Selenium Batteries

et al. 2022

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Alkali metal batteries based on lithium, sodium, and potassium anodes and sulfur-based cathodes are regarded as key for next-generation energy storage due to their high theoretical energy and potential cost effectiveness. However, metal−sulfur batteries remain challenged by several factors, including polysulfides' (PSs) dissolution, sluggish sulfur redox kinetics at the cathode, and metallic dendrite growth at the anode. Functional separators and interlayers are an innovative approach to remedying these drawbacks. Here we critically review the state-of-the-art in separators/interlayers for cathode and anode protection, covering the Li−S and the emerging Na−S and K−S systems. The approaches for improving electrochemical performance may be categorized as one or a combination of the following: Immobilization of polysulfides (cathode); catalyzing sulfur redox kinetics (cathode); introduction of protective layers to serve as an artificial solid electrolyte interphase (SEI) (anode); and combined improvement in electrolyte wetting and homogenization of ion flux (anode and cathode). It is demonstrated that while the advances in Li−S are relatively mature, less progress has been made with Na−S and K−S due to the more challenging redox chemistry at the cathode and increased electrochemical instability at the anode. Throughout these sections there is a complementary discussion of functional separators for emerging alkali metal systems based on metal−selenium and the metal−selenium sulfide. The focus then shifts to interlayers and artificial SEI/cathode electrolyte interphase (CEI) layers employed to stabilize solid-state electrolytes (SSEs) in metal−sulfur solid-state batteries (SSBs). The discussion of SSEs focuses on inorganic electrolytes based on Li-and Na-based oxides and sulfides but also touches on some hybrid systems with an inorganic matrix and a minority polymer phase. The review then moves to practical considerations for functional separators, including scaleup issues and Li−S technoeconomics. The review concludes with an outlook section, where we discuss emerging mechanics, spectroscopy, and advanced electron microscopy (e.g. cryo-transmission electron microscopy (cryo-TEM) and cryo-focused ion beam (cryo-FIB))-based approaches for analysis of functional separator structure−battery electrochemical performance interrelations. Throughout the review we identify the outstanding open scientific and technological questions while providing recommendations for future research topics.

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Section: Polysulfide (Ps) Shuttle and Sluggish Reaction Kinetics In M...mentioning

confidence: 99%

“…Optimizing performance has been approached from broad perspectives. This includes 2.1 21 1 22 1.2 22 Ionic diffusivity in tellurene and alloy (cm 2 s −1 ) 23 10 −14 − 10 −15 16.9 25 16 26 13.1 27 Ionic conductivity of 1 M MFSI in EC:DMC (mS cm −1 ) 28 9.3 9.7 10.7…”

Section: Introduction: Background Of Metal−sulfur Batteries and Beyondmentioning

confidence: 99%

Review of Multifunctional Separators: Stabilizing the Cathode and the Anode for Alkali (Li, Na, and K) Metal–Sulfur and Selenium Batteries

et al. 2022

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“…The XRD peak positions and shapes of the three materials were basically the same (Figure c), and new diffraction peaks that were not present in the patterns of S, Se, and Te were detected (marked with pink dotted lines). When combined with the new chalcogen–chalcogen bonds in XPS results , (Figures S16–S18, Supporting Information), this evidence strongly indicates that SST is by no means a simple physical mixture but a compound. In addition, the molar ratios of the three elements in SST/AC are roughly equivalent to the feed ratios.…”

Section: Resultsmentioning

confidence: 95%

“…(marked with pink dotted lines). When combined with the new chalcogen−chalcogen bonds in XPS results 40,41 (Figures S16−S18, Supporting Information), this evidence strongly indicates that SST is by no means a simple physical mixture but a compound. In addition, the molar ratios of the three elements in SST/AC are roughly equivalent to the feed ratios.…”

Section: Characteristics and Electrochemicalmentioning

confidence: 99%

Multichalcogen-Integrated Cathodes for Novel Lithium-Chalcogenide Batteries in Ether and Ester Electrolytes

Yang

Jia

Zhao

et al. 2022

ACS Appl. Mater. Interfaces

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Lithium–sulfur (Li–S) batteries and lithium–selenium (Li–Se) batteries that contain only one single active element have unique advantages and disadvantages. Inspired by ternary lithium batteries, multielement chalcogenide compounds with integrated advantages may improve upon the performance of lithium-chalcogenide batteries at the source. In this work, activated carbon (AC) with an Al2O3@SiO2 heterojunction is used as the carrier, and the performances and mechanisms of elemental substances (X/AC, X = S, Se, and Te) are studied in ether and ester electrolytes as the basis for preparing multielement chalcogenide composites (SST/AC, SST: S–Se–Te compound). In the ester electrolyte system, SST811/AC (where S/Se/Te = 8:1:1, molar ratio) exhibited the best cycling performance, and the capacity remained at 1024.9 mA h g–1 after 300 cycles. The characterization results revealed the mechanisms and sequences of the gradual liquid-phase reactions of SST/AC in ether electrolytes and the direct solid-phase reactions in ester electrolytes. The active elements in SST/AC fully demonstrated their own functions, enabling the effective construction of new lithium-chalcogenide battery systems. This work provides inspiration for the subsequent research of multielement lithium-chalcogenide batteries and paves the way for their application.

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“…[161] Further, Jain et al experimentally studied the Li/Na alloying reaction with few-layer tellurene. [162] In situ TEM and DFT results show that tellurene and alkali (A) metals form A 2 Te alloy. Alloying [142] Copyright 2019, RSC.…”

Section: Group Via Based Elemental 2d Materials -Tellurene and Selenenementioning

confidence: 99%

Elemental Two‐Dimensional Materials for Li/Na‐Ion Battery Anode Applications

Tian

Chen

Liu

et al. 2022

The Chemical Record

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Two‐dimensional (2D) nanostructure is currently the subject in the fields of new energy storage and devices. During the past years, a broad range of 2D materials represented by graphene have been developed and endow with excellent electrochemical properties. Among them, elemental 2D materials (Xenes) are an emerged material family for Li/Na‐ion battery (LIB/SIB) anodes. Compared with other 2D materials and bulk materials, Xenes may exhibit some great superiorities for Li/Na storage, including excellent conductivity, fast ion diffusion and large active sites exposure. In this review, we provide a systematic summary of the recent progress and achievements of Xenes as well as their applications in LIBs/SIBs. The broad categorization of Xenes from group IIIA to VIA has been concisely outlined, and the related details in syntheses, structures and Li/Na‐ion storage properties are reviewed. Further, the latest research progress of Xenes in Li/Na ion batteries are summarized, together with mechanism discussions. Finally, the challenges and prospects of Xenes applied to Li/Na ion battery are proposed based on its current developments.

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Alloying of Alkali Metals with Tellurene

Cited by 14 publications

References 46 publications

Review of Multifunctional Separators: Stabilizing the Cathode and the Anode for Alkali (Li, Na, and K) Metal–Sulfur and Selenium Batteries

Review of Multifunctional Separators: Stabilizing the Cathode and the Anode for Alkali (Li, Na, and K) Metal–Sulfur and Selenium Batteries

Multichalcogen-Integrated Cathodes for Novel Lithium-Chalcogenide Batteries in Ether and Ester Electrolytes

Elemental Two‐Dimensional Materials for Li/Na‐Ion Battery Anode Applications

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