Hard Carbon Anodes for Next‐Generation Li‐Ion Batteries: Review and Perspective

Advanced Energy Materials, Год журнала: 2021, Номер 11(38)

Опубликована: Сен. 1, 2021

Abstract Carbonaceous materials have been accepted as a promising family of anode for lithium‐ion batteries (LIBs) owing to optimal overall performance. Among various emerging carbonaceous materials, hard carbons recently gained significant attention high‐energy LIBs. The most attractive features are the enriched microcrystalline structure, which not only benefits uptake more Li + ions but also facilitates intercalation and deintercalation. However, booming application is significantly slowed by low initial Coulombic efficiency, large irreversible capacity, voltage hysteresis. Many efforts devoted address these challenges toward practical applications. This paper focuses on an up‐to‐date overview carbons, with emphasis lithium storage fundamentals material classification well present potential solutions. future prospects perspectives enable in next‐generation highlighted.

Язык: Английский

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Applying Classical, Ab Initio, and Machine-Learning Molecular Dynamics Simulations to the Liquid Electrolyte for Rechargeable Batteries

Chemical Reviews, Год журнала: 2022, Номер 122(12), С. 10970 - 11021

Опубликована: Май 16, 2022

Rechargeable batteries have become indispensable implements in our daily life and are considered a promising technology to construct sustainable energy systems the future. The liquid electrolyte is one of most important parts battery extremely critical stabilizing electrode–electrolyte interfaces constructing safe long-life-span batteries. Tremendous efforts been devoted developing new solvents, salts, additives, recipes, where molecular dynamics (MD) simulations play an increasingly role exploring structures, physicochemical properties such as ionic conductivity, interfacial reaction mechanisms. This review affords overview applying MD study electrolytes for rechargeable First, fundamentals recent theoretical progress three-class summarized, including classical, ab initio, machine-learning (section 2). Next, application exploration electrolytes, probing bulk structures 3), deriving macroscopic conductivity dielectric constant 4), revealing mechanisms 5), sequentially presented. Finally, general conclusion insightful perspective on current challenges future directions provided. Machine-learning technologies highlighted figure out these challenging issues facing research promote rational design advanced next-generation

Язык: Английский

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A review on theoretical models for lithium–sulfur battery cathodes

InfoMat, Год журнала: 2022, Номер 4(3)

Опубликована: Март 1, 2022

Abstract Lithium–sulfur (Li–S) batteries have been considered as promising battery systems due to their huge advantages on theoretical energy density and rich resources. However, the shuttle effect sluggish transformation of soluble lithium polysulfides (LiPSs) hinder practical application Li–S batteries. Tremendous sulfur host materials with unique catalytic activity exploited inhibit accelerate LiPSs redox reactions, in which simulations widely adopted. This review aims summarize fundamentals applications models cathodes. Concretely, integration provides insights into adsorption conversion mechanisms is further utilized smart design catalysts for exploitation Finally, a perspective future combination calculation technology provided.

Язык: Английский

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Unlocking the Failure Mechanism of Solid State Lithium Metal Batteries

Advanced Energy Materials, Год журнала: 2021, Номер 12(4)

Опубликована: Июнь 1, 2021

Abstract Solid‐state lithium metal batteries are regarded to be the ultimate choice for future energy storage systems due their high theoretical density and safety. However, practical applications of solid‐state hindered by severe interfacial issues, such as resistance, inferior electro‐/chemical compatibility, well poor stability. Moreover, dendrite growth mechanical degradation caused stress during repeated cycling induce failure a working battery. Therefore, understanding mechanism battery is imperative significant construct better interface safe In this review, current fundamental impact lithium/solid‐state electrolyte on ionics chemistry introduced first. The mechanisms underlying electrical, chemical, electrochemical, aspects summarized. emerging perspectives regarding research directions also included. This sheds fresh light rational construction high‐efficiency batteries.

Язык: Английский

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Opportunities of Flexible and Portable Electrochemical Devices for Energy Storage: Expanding the Spotlight onto Semi-solid/Solid Electrolytes

Chemical Reviews, Год журнала: 2022, Номер 122(23), С. 17155 - 17239

Опубликована: Окт. 14, 2022

The ever-increasing demand for flexible and portable electronics has stimulated research development in building advanced electrochemical energy devices which are lightweight, ultrathin, small size, bendable, foldable, knittable, wearable, and/or stretchable. In such devices, semi-solid/solid electrolytes besides anodes cathodes the necessary components determining energy/power performances. By serving as ion transport channels, may be beneficial to resolving issues of leakage, electrode corrosion, metal dendrite growth. this paper, fundamentals (e.g., chemical composition, ionic conductivity, window, mechanical strength, thermal stability, other attractive features), electrode–electrolyte interfacial properties, their relationships with performance various supercapacitors, secondary batteries, metal–sulfur metal–air batteries) comprehensively reviewed terms materials synthesis characterization, functional mechanisms, device assembling validation. most recent advancements improving summarized focuses on analyzing existing technical challenges solid electrolyte interphase formation, growth, polysulfide shuttle issue, instability half-open battery structure) strategies overcoming these through modification materials. Several possible directions future proposed going beyond technological bottlenecks achieving desirable fulfill practical applications. It is expected that review provide readers a comprehensive cross-technology understanding facilitating current researches devices.

Язык: Английский

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Graphene quantum dots enable dendrite-free zinc ion battery

Nano Energy, Год журнала: 2021, Номер 92, С. 106752 - 106752

Опубликована: Ноя. 19, 2021

Язык: Английский

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Rational Design of Flexible Zn-Based Batteries for Wearable Electronic Devices

ACS Nano, Год журнала: 2023, Номер 17(3), С. 1764 - 1802

Опубликована: Янв. 30, 2023

The advent of 5G and the Internet Things has spawned a demand for wearable electronic devices. However, lack suitable flexible energy storage system become "Achilles' Heel" Additional problems during transformation battery structure from conventional to also present severe challenge design. Flexible Zn-based batteries, including Zn-ion batteries Zn–air have long been considered promising candidates due their high safety, eco-efficiency, substantial reserve, low cost. In past decade, researchers come up with elaborate designs each portion improve ionic conductivities, mechanical properties, environment adaptabilities, scalable productions. It would be helpful summarize reported strategies compare pros cons facilitate further research toward commercialization batteries. this review, current progress in developing is comprehensively reviewed, electrolytes, cathodes, anodes, discussed terms synthesis, characterization, performance validation. By clarifying challenges design, we methodology previous investigations propose future development. end, paradigm summarized fit burgeoning requirement devices an iterative process, which will benefit development

Язык: Английский

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Mechanism understanding for stripping electrochemistry of Li metal anode

SusMat, Год журнала: 2021, Номер 1(4), С. 506 - 536

Опубликована: Дек. 1, 2021

Abstract The pursuit of sustainable energy has a great request for advanced storage devices. Lithium metal batteries are regarded as potential electrochemical system because the extremely high capacity and most negative lithium anode. Dead formed in stripping process significantly contributes to low efficiency short lifespan rechargeable batteries. This review displays critical on current research status about electrochemistry significance robust anode is emphasized. models different scenarios discussed. Specific attention paid understanding principles atom diffusion, reaction, ion diffusion solid electrolyte interphase (SEI), electron transfer with purpose strengthen insights into behavior electrode stripping. factors affecting processes corresponding solutions summarized categorized follows: surface physics, SEI, operational external factors. affords fresh explore design based comprehensive electrochemistry.

Язык: Английский

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Dead lithium formation in lithium metal batteries: A phase field model

Journal of Energy Chemistry, Год журнала: 2021, Номер 71, С. 29 - 35

Опубликована: Дек. 17, 2021

Язык: Английский

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Aggregation‐induced emission: Red and near‐infrared organic light‐emitting diodes

SmartMat, Год журнала: 2021, Номер 2(3), С. 326 - 346

Опубликована: Авг. 27, 2021

Abstract Red and near‐infrared (NIR) organic light‐emitting diodes (OLED) have gained remarkable interest due to their numerous applications. However, the construction of highly emissive emitters is hampered by energy‐gap law aggregation‐caused quenching (ACQ) effect. Whereas, aggregation‐induced emission (AIE) materials could avoid undesirable ACQ effect emit bright light in aggregated state, which one class most promising fabricate high‐performance OLED with a high external quantum efficiency low roll‐off. This review summarizes recent advances red NIR AIE property, including traditional fluorescence, thermally activated delayed hybridized local charge transfer compounds. Meanwhile, emphasis attention paid molecular design principles, as well structure‐photophysical characteristics. We also briefly further outlook challenges perspective luminogens.

Язык: Английский

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