Chlorine bridge bond-enabled binuclear copper complex for electrocatalyzing lithium–sulfur reactions DOI Creative Commons

Qin Yang,

Jinyan Cai,

Guanwu Li

et al.

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

Published: April 15, 2024

Abstract Engineering atom-scale sites are crucial to the mitigation of polysulfide shuttle, promotion sulfur redox, and regulation lithium deposition in lithium–sulfur batteries. Herein, a homonuclear copper dual-atom catalyst with proximal distance 3.5 Å is developed for batteries, wherein two adjacent atoms linked by pair symmetrical chlorine bridge bonds. Benefiting from their unique coordination, increased active interface concentration synchronously guide evolutions species. Such delicate design breaks through activity limitation mononuclear metal center represents concept battery realm. Therefore, remarkable areal capacity 7.8 mA h cm −2 achieved under scenario content 60 wt. %, mass loading 7.7 mg electrolyte dosage 4.8 μL −1 .

Language: Английский

Sulfur Reduction Reaction in Lithium–Sulfur Batteries: Mechanisms, Catalysts, and Characterization DOI Creative Commons
Lei Zhou, Dmitri L. Danilov, Fen Qiao

et al.

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 12(44)

Published: Sept. 18, 2022

Abstract Lithium–sulfur batteries are one of the most promising alternatives for advanced battery systems due to merits extraordinary theoretical specific energy density, abundant resources, environmental friendliness, and high safety. However, sluggish sulfur reduction reaction (SRR) kinetics results in poor utilization, which seriously hampers electrochemical performance Li–S batteries. It is critical reveal underlying mechanisms accelerate SRR kinetics. Herein, issues reviewed. The conversion pathways initially introduced give an overview SRR. Subsequently, recent advances catalyst materials that can summarized detail, including carbon, metal compounds, metals, single atoms. Besides, various characterization approaches discussed, be divided into three categories: measurements, spectroscopic techniques, calculations. Finally, conclusion outlook part gives a summary proposes several key points future investigations on activities. This review provide cutting‐edge insights

Language: Английский

Citations

215
Li-S Batteries: Challenges, Achievements and Opportunities DOI
Hassan Raza, Songyan Bai, Junye Cheng

et al.

Electrochemical Energy Reviews, Journal Year: 2023, Volume and Issue: 6(1)

Published: Aug. 21, 2023

Language: Английский

Citations

166
Ion Transport Kinetics in Low‐Temperature Lithium Metal Batteries DOI
Anjun Hu, Fei Li, Wei Chen

et al.

Advanced Energy Materials, Journal Year: 2022, Volume and Issue: 12(42)

Published: Sept. 6, 2022

Abstract The deployment of rechargeable batteries is crucial for the operation advanced portable electronics and electric vehicles under harsh environment. However, commercial lithium‐ion using ethylene carbonate electrolytes suffer from severe loss in cell energy density at extremely low temperature. Lithium metal (LMBs), which use Li as anode rather than graphite, are expected to push baseline low‐temperature devices level. Albeit promising, kinetic limitations standard chemistries subzero condition inevitably hamper cyclability LMBs, resulting a decline plating/stripping reversibility short‐circuit hazards due dendritic growth. Such performance degradation becomes more pronounced with decreasing temperature, ascribing sluggish ion transport kinetics during charging/discharging processes includes + solvation/desolvation, through bulk electrolyte, well diffusion within solid electrolyte interphase electrode materials In this review, critical limiting factors challenges behaviors systematically reviewed discussed. strategies enhance electrolytes, electrodes, electrolyte/electrode interface comprehensively summarized. Finally, perspective on future research direction LMBs toward practical applications proposed.

Language: Английский

Citations

158
Nonflammable Polyfluorides‐Anchored Quasi‐Solid Electrolytes for Ultra‐Safe Anode‐Free Lithium Pouch Cells without Thermal Runaway DOI Open Access
Anjun Hu, Wei Chen, Fei Li

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(51)

Published: Sept. 6, 2023

The safe operation of rechargeable batteries is crucial because numerous instances fire and explosion mishaps. However, battery chemistry involving metallic lithium (Li) as the anode prone to thermal runaway in flammable organic electrolytes under abusive conditions. Herein, an situ encapsulation strategy proposed construct nonflammable quasi-solid through radical polymerization a hexafluorobutyl acrylate (HFBA) monomer pentaerythritol tetraacrylate (PETEA) crosslinker. system eliminates inherent flammability ether with zero self-extinguishing time owing gas-phase capturing ability HFBA. Additionally, graphitized carbon layer generated during decomposition PETEA at high temperatures obstructs heat oxygen required for combustion. When coupled Au-modified reduced graphene oxide anodic current collectors sulfide cathodes, assembled anode-free Li-metal cell based on electrolyte exhibits no signs expansion or gas generation cycling, eliminated multiple mechanical, electrical, abuse scenarios even rigorous strikes. This configuration gas- condensed-phase flame-retardant mechanisms can drive technological leap pouch cells secure practical applications necessary power this society manner.

Language: Английский

Citations

123
Roadmap for rechargeable batteries: present and beyond DOI Open Access
Sen Xin, Xu Zhang, Lin Wang

et al.

Science China Chemistry, Journal Year: 2023, Volume and Issue: 67(1), P. 13 - 42

Published: Dec. 26, 2023

Language: Английский

Citations

108
Engineering Strategies for Suppressing the Shuttle Effect in Lithium–Sulfur Batteries DOI Creative Commons
Jiayi Li,

Li Gao,

Fengying Pan

et al.

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 16(1)

Published: Nov. 10, 2023

Lithium-sulfur (Li-S) batteries are supposed to be one of the most potential next-generation owing their high theoretical capacity and low cost. Nevertheless, shuttle effect firm multi-step two-electron reaction between sulfur lithium in liquid electrolyte makes much smaller than value. Many methods were proposed for inhibiting polysulfide, improving corresponding redox kinetics enhancing integral performance Li-S batteries. Here, we will comprehensively systematically summarize strategies from all components First, electrochemical principles/mechanism origin described detail. Moreover, efficient strategies, including boosting conversion rate sulfur, confining or polysulfides (LPS) within cathode host, LPS shield layer, preventing contacting anode, discussed suppress effect. Then, recent advances inhibition cathode, electrolyte, separator, anode with aforementioned have been summarized direct further design materials Finally, present prospects development directions

Language: Английский

Citations

101
Fundamental, application and opportunities of single atom catalysts for Li-S batteries DOI
Ting Zhou, Jianneng Liang, Shenghua Ye

et al.

Energy storage materials, Journal Year: 2022, Volume and Issue: 55, P. 322 - 355

Published: Dec. 5, 2022

Language: Английский

Citations

98
Unity of Opposites between Soluble and Insoluble Lithium Polysulfides in Lithium–Sulfur Batteries DOI
Zhenkang Wang, Ya Li, Haoqing Ji

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(47)

Published: July 11, 2022

Rechargeable batteries based on Li-S chemistry show promise as being possible for next-generation energy storage devices because of their ultrahigh capacities and densities. Research over the past decade has demonstrated that morphology lithium polysulfides (LPSs) in electrolytes (soluble or insoluble) plays a decisive role battery performance. Early studies have focused mainly inhibiting dissolution LPSs invested considerable effort to realize this objective. However, recent years, completely different view during discharge/charge should be promoted emerged. At critical juncture large-scale application batteries, it is time summarize discuss both sides contradiction. Herein, an overview these two opposite views pertaining soluble insoluble LPSs, including historical environment, classical strategies, advantages, disadvantages. Finally, future predicted multiangle review research conducted thus far, reasoning behind conjecture thoroughly discussed.

Language: Английский

Citations

93
Nanoreactors Encapsulating Built‐in Electric Field as a “Bridge” for Li–S Batteries: Directional Migration and Rapid Conversion of Polysulfides DOI
Junhao Li, Zhengyi Wang, Kaixiang Shi

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 14(9)

Published: Dec. 27, 2023

Abstract Lithium–sulfur batteries (Li–S) are recognized as the next generation of secondary due to their satisfactory theoretical specific capacity and energy density. However, a series problems such disordered migration behavior, sluggish redox kinetics, serious shuttle effect lithium polysulfides (LiPSs) greatly limit commercial application. Herein, nanoreactors encapsulate heterostructure guarantee sulfur conversion in hosts where consists FeP with moderate adsorption ability, excellent catalytic active low work function, Fe 3 O 4 strong ability high function. This rational configuration controls direction interface built‐in electric field (BIEF) between catalyst adsorbent, realizing successive “trapping‐directional migration‐conversion” reaction mechanism species. Thanks BIEF bridge connect trapping site site, /FeP@C─S cathode delivers an ultrahigh initial 1402 mAh g −1 at 0.1 C remains more than 450 5 after 350 cycles. Even loading 5.20 mg cm −2 , it displayed 970 . provided effective strategy design high‐performance electrocatalysts for Li–S batteries.

Language: Английский

Citations

92
Unraveling Polysulfide's Adsorption and Electrocatalytic Conversion on Metal Oxides for Li‐S Batteries DOI Creative Commons

Shungui Deng,

Tiezhu Guo, Jakob Heier

et al.

Advanced Science, Journal Year: 2022, Volume and Issue: 10(5)

Published: Dec. 11, 2022

Abstract Lithium sulfur (LiS) batteries possess high theoretical capacity and energy density, holding great promise for next generation electronics electrical vehicles. However, the LiS development is hindered by shuttle effect sluggish conversion kinetics of lithium polysulfides (LiPSs). Designing highly polar materials such as metal oxides (MOs) with moderate adsorption effective catalytic activity essential to overcome above issues. To design efficient MOs catalysts, it critical necessary understand mechanism associated processes LiPSs. most reviews still lack a comprehensive investigation basic always ignore their in‐depth relationship. In this review, systematic analysis toward understanding underlying in chemistry well discussion typical works concerning electrocatalysts are provided. Moreover, improve “adsorption‐diffusion‐conversion” process caused low conductive nature MOs, oxygen vacancies heterostructure engineering elucidated two strategies. The challenges prospects also provided last section. authors hope review will provide instructive guidance catalyst explore practical possibilities commercialization batteries.

Language: Английский

Citations

88