Recent Progress for Concurrent Realization of Shuttle‐Inhibition and Dendrite‐Free Lithium–Sulfur Batteries

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(32)

Published: March 24, 2023

Lithium-sulfur (Li-S) batteries have become one of the most promising new-generation energy storage systems owing to their ultrahigh density (2600 Wh kg-1 ), cost-effectiveness, and environmental friendliness. Nevertheless, practical applications are seriously impeded by shuttle effect soluble lithium polysulfides (LiPSs), uncontrolled dendrite growth metallic Li, which result in rapid capacity fading battery safety problems. A systematic comprehensive review cooperative combination tackling fundamental problems terms cathode anode synchronously is still lacking. Herein, for first time, strategies inhibiting behavior dendrite-free Li-S simultaneously summarized classified into three parts, including "two-in-one" S-cathode Li-anode host materials toward full cell, "two birds with stone" modified functional separators, tailoring electrolyte stabilizing sulfur electrodes. This also emphasizes chemistry mechanism catalyst principles improving electrochemical performance; advanced characterization technologies monitor real-time LiPS evolution discussed detail. The problems, perspectives, challenges respect issues as well application proposed.

Language: Английский

---

Machine-learning-assisted design of a binary descriptor to decipher electronic and structural effects on sulfur reduction kinetics

Nature Catalysis, Journal Year: 2023, Volume and Issue: 6(11), P. 1073 - 1086

Published: Oct. 19, 2023

Language: Английский

---

Transition Metal Compounds Family for Li–S Batteries: The DFT‐Guide for Suppressing Polysulfides Shuttle

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(32)

Published: April 29, 2023

Abstract Lithium–sulfur batteries (LSBs) are considered as one of the best candidates for next generation high‐energy‐density storage devices owing to their superior theoretical energy density, high specific capacity, and sufficient sulfur reservoirs. However, shuttle effect soluble polysulfides sluggish LiPSs redox kinetics restrict further application LSBs. The can be efficiently alleviated conversion accelerated by designing optimal transition metal compounds (TMCs) multifunctional catalyst materials. Herein, recent advances about TMCs in LSBs systematically summarized analyzed. First all, intrinsic structural characteristics relevant on works adsorption energies studies described detail. Second, bonding manners properties analyzed density functional theory (DFT)‐guided calculations, focusing diffusion behavior between LiPSs. Furthermore, mechanism reaction is studied from aspects, thus developing continuous dynamic analysis “adsorption–diffusion–conversion” toward Eventually, this study particularly highlights importance modification engineering provides a forward‐looking overview its prospects introduction previous advanced

Language: Английский

---

A tandem electrocatalyst with dense heterointerfaces enabling the stepwise conversion of polysulfide in lithium-sulfur batteries

Energy storage materials, Journal Year: 2022, Volume and Issue: 55, P. 445 - 454

Published: Dec. 10, 2022

Language: Английский

---

Bimetal‐Organic Framework Nanoboxes Enable Accelerated Redox Kinetics and Polysulfide Trapping for Lithium‐Sulfur Batteries

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(31)

Published: June 7, 2023

Abstract Lithium‐sulfur (Li−S) batteries are considered as promising candidates for next‐generation energy storage systems in view of the high theoretical density and low cost sulfur resources. The suppression polysulfide diffusion promotion redox kinetics main challenges Li−S batteries. Herein, we design prepare a novel type ZnCo‐based bimetallic metal–organic framework nanoboxes (ZnCo‐MOF NBs) to serve functional host hollow architecture ZnCo‐MOF NBs can ensure fast charge transfer, improved utilization, effective confinement lithium polysulfides (LiPSs). atomically dispersed Co−O 4 sites firmly capture LiPSs electrocatalytically accelerate their conversion kinetics. Benefiting from multiple structural advantages, ZnCo‐MOF/S cathode shows reversible capacity, impressive rate capability, prolonged cycling performance 300 cycles.

Language: Английский

---

Phase Evolution of VC‐VO Heterogeneous Particles to Facilitate Sulfur Species Conversion in Li−S Batteries

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 33(3)

Published: Nov. 7, 2022

Abstract Lithium−sulfur (Li−S) batteries with ultrahigh theoretical energy densities have thus far attracted significant attention as the next‐generation storage systems. However, presence of polysulfide shuttle effect and sluggish reaction kinetics critically hindered their research progress. Herein, fabrication novel VC‐VO heterogeneous particles supported on a hierarchical porous carbon matrix (VC‐VO/HPC) is reported that regulate disordered motion lithium polysulfides (LiPSs); these can simultaneously achieve powerful anchoring, fast diffusion, high‐efficiency conversion LiPSs. Moreover, in situ characterization VC‐VO/HPC@S provides rational inference for phase evolution galvanostatic charge/discharge process. The formation V 5 S 8 during electrochemical cycling primarily facilitates interconversion liquid‐phase polysulfides. Consequently, cathodes exhibit excellent capacity performance (1484 mAh g −1 at 0.1 C) cycle stability (0.045% decay rate per C). pouch cell exhibits high density 358 Wh kg . This approach explores an environment valuable development Li−S area long life.

Language: Английский

---

Controllable catalysis behavior for high performance lithium sulfur batteries: From kinetics to strategies

EnergyChem, Journal Year: 2022, Volume and Issue: 5(1), P. 100096 - 100096

Published: Nov. 18, 2022

Language: Английский

---

Kinetically Favorable Li–S Battery Electrolytes

ACS Energy Letters, Journal Year: 2023, Volume and Issue: 8(7), P. 3054 - 3080

Published: June 20, 2023

Lithium–sulfur (Li–S) batteries suffer from rampant polysulfide shuttling and sluggish reaction kinetics, which have curtailed sulfur utilization deteriorated their actual performance. To circumvent these detrimental issues, electrolyte engineering is a reliable strategy to control behavior facilitate kinetics. However, the electrolyte–polysulfide nexus remains elusive, design principle far clear, especially for pragmatic application. In this Review, key approaches obtain kinetically favorable Li–S battery electrolytes are elucidated three perspectives: (i) high-donor-number components, (ii) homogeneous catalysts, (iii) endogenous co-mediators. Particular attention paid probing underlying working mechanism. addition, kinetics electrochemical performances systematically studied, highlighting strategic effectiveness of in lean-electrolyte conditions. This Review aims offer meaningful guidance rational enhance performance advance commercialization batteries.

Language: Английский

---

Towards Practical Application of Li–S Battery with High Sulfur Loading and Lean Electrolyte: Will Carbon-Based Hosts Win This Race?

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: June 7, 2023

Abstract As the need for high-energy–density batteries continues to grow, lithium-sulfur (Li–S) have become a highly promising next-generation energy solution due their low cost and exceptional density compared commercially available Li-ion batteries. Research into carbon-based sulfur hosts Li–S has been ongoing over two decades, leading significant number of publications patents. However, commercialization yet be realized. This can attributed, in part, instability Li metal anode. even when considering just cathode side, there is still no consensus on whether will prove best industrialization Recently, controversy surrounding use materials as ideal practical applications under high loading lean electrolyte conditions. To address this question, it important review results research hosts, assess strengths weaknesses, provide clear perspective. systematically evaluates merits mechanisms various strategies developing host The covers structural design functional optimization detail, providing comprehensive understanding development hosts. also describes efficient machine learning methods investigating Finally, outlook section lists discusses current trends, challenges, uncertainties concludes by presenting our standpoint perspective subject.

Language: Английский

---

Fe3O4-doped mesoporous carbon cathode with a plumber’s nightmare structure for high-performance Li-S batteries

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 27, 2024

Shuttling of lithium polysulfides and slow redox kinetics seriously limit the rate cycling performance lithium-sulfur batteries. In this study, Fe

Language: Английский

---