Ligand-channel-enabled ultrafast Li-ion conduction

Nature, Год журнала: 2024, Номер 627(8002), С. 101 - 107

Опубликована: Фев. 28, 2024

Язык: Английский

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“Fast-Charging” Anode Materials for Lithium-Ion Batteries from Perspective of Ion Diffusion in Crystal Structure

ACS Nano, Год журнала: 2024, Номер 18(4), С. 2611 - 2648

Опубликована: Янв. 15, 2024

"Fast-charging" lithium-ion batteries have gained a multitude of attention in recent years since they could be applied to energy storage areas like electric vehicles, grids, and subsea operations. Unfortunately, the excellent density fail sustain optimally while are exposed fast-charging conditions. In actuality, crystal structure electrode materials represents critical factor for influencing performance. Accordingly, employing anode with low diffusion barrier improve "fast-charging" performance battery. this Review, first, principle battery ion path briefly outlined. Next, application prospects various structures evaluated search stable, safe, long lifespan, solving remaining challenges associated high power safety. Finally, summarizing research advances typical materials, including preparation methods advanced morphologies latest techniques ameliorating Furthermore, an outlook is given on ongoing breakthroughs batteries. Intercalated (niobium-based, carbon-based, titanium-based, vanadium-based) favorable cycling stability predominantly limited by undesired electronic conductivity theoretical specific capacity. addressing electrical these constitutes effective trend realizing fast-charging. The conversion-type transition metal oxide phosphorus-based capacity typically undergoes significant volume variation during charging discharging. Consequently, alleviating expansion significantly fulfill

Язык: Английский

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Reversible Li Plating on Graphite Anodes through Electrolyte Engineering for Fast‐Charging Batteries

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(19)

Опубликована: Март 10, 2023

The difficulties to identify the rate-limiting step cause lithium (Li) plating hard be completely avoided on graphite anodes during fast charging. Therefore, Li regulation and morphology control are proposed address this issue. Specifically, a plating-reversible anode is achieved via localized high-concentration electrolyte (LHCE) successfully regulate with high reversibility over high-rate cycling. evolution of solid interphase (SEI) before after deeply investigated explore interaction between lithiation behavior electrochemical interface polarization. Under fact that contributes 40 % total capacity, stable LiF-rich SEI renders higher average Coulombic efficiency (99.9 %) throughout 240 cycles 99.95 plating. Consequently, self-made 1.2-Ah LiNi0.5 Mn0.3 Co0.2 O2 | pouch cell delivers competitive retention 84.4 even at 7.2 A (6 C) 150 cycles. This work creates an ingenious bridge plating, for realizing high-performance fast-charging batteries.

Язык: Английский

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Inhibiting gas generation to achieve ultralong-lifespan lithium-ion batteries at low temperatures

Matter, Год журнала: 2023, Номер 6(7), С. 2274 - 2292

Опубликована: Май 10, 2023

Язык: Английский

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Emerging Multiscale Porous Anodes toward Fast Charging Lithium-Ion Batteries

ACS Nano, Год журнала: 2023, Номер 17(21), С. 20850 - 20874

Опубликована: Ноя. 3, 2023

With the accelerated penetration of global electric vehicle market, demand for fast charging lithium-ion batteries (LIBs) that enable improvement user driving efficiency and experience is becoming increasingly significant. Robust ion/electron transport paths throughout electrode have played a pivotal role in progress LIBs. Yet traditional graphite anodes lack ion channels, which suffer extremely elevated overpotential at ultrafast power outputs, resulting lithium dendrite growth, capacity decay, safety issues. In recent years, emergent multiscale porous dedicated to building efficient channels on multiple scales offer opportunities anodes. This review survey covers advances emerging It starts by clarifying how pore parameters such as porosity, tortuosity, gradient affect ability from an electrochemical kinetic perspective. We then present overview efforts implement both material levels diverse types anode materials. Moreover, we critically evaluate essential merits limitations several quintessential practical viewpoint. Finally, highlight challenges future prospects design associated with materials electrodes well crucial issues faced battery management level.

Язык: Английский

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Hydrogen-bond-mediated micelle aggregating self-assembly towards carbon nanofiber networks for high-energy and long-life zinc ion capacitors

Chemical Engineering Journal, Год журнала: 2023, Номер 470, С. 144256 - 144256

Опубликована: Июнь 20, 2023

Язык: Английский

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Unveiling the adsorption tendency of film-forming additives to enable fast-charging hard carbon anodes with regulated Li plating

Energy & Environmental Science, Год журнала: 2024, Номер 17(7), С. 2500 - 2511

Опубликована: Янв. 1, 2024

By unveiling the adsorption tendency of EC and FEC additives on defective graphene surfaces its impact SEI formation, hard carbon anodes with efficient Li plating regulation can be achieved for fast-charging lithium-ion batteries.

Язык: Английский

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Dominant Solvent-Separated Ion Pairs in Electrolytes Enable Superhigh Conductivity for Fast-Charging and Low-Temperature Lithium Ion Batteries

ACS Nano, Год журнала: 2024, Номер 18(11), С. 8350 - 8359

Опубликована: Март 11, 2024

The low ionic conductivities of aprotic electrolytes hinder the development extreme fast charging technologies and applications at temperatures for lithium-ion batteries (LIBs). Herein, we present an electrolyte with LiFSI in acetone (DMK). In DMK electrolytes, solvation number is three, solvent-separated ion pairs (SSIPs) are dominant structure, which largely different from other linear where salts primarily exist as contact (CIPs). With incompact structures due to weak ability Li+, conductivity reaches 45 mS/cm room temperature. percentage SSIPs increases decrease totally carbonate-based but greatly beneficial low-temperature conductivity. appropriate addition VC FEC, DMK-based still exhibit a superhigh Even −40 °C, greater than 10 mS/cm. LIBs thick LiFePO4 electrodes can be cycled high rates temperatures.

Язык: Английский

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Decoupling Interfacial Kinetics Realizes 5C Fast Charging of Potassium‐Ion Batteries Using Graphite Anode

Advanced Functional Materials, Год журнала: 2024, Номер 34(21)

Опубликована: Янв. 30, 2024

Abstract Improving interfacial kinetics is the key to realizing extreme fast charging (XFC) of graphite‐based potassium ion batteries (PIBs). The electrolyte engineering commonly used for solid interphase (SEI) design. However, this strategy adjusts both solvation structure and (de)solvation simultaneously, thus making it difficult explicitly reveal linkage between SEI properties kinetics. Herein, content inorganic species in preformed on graphite surface precisely regulated uncovered its critical role improving charge transfer graphite/electrolyte found be rate limitation step upon XFC. Meanwhile, increased plays a decisive optimizing rather than naked K + crossing SEI. Through unlocking anodic with ultra‐inorganic rich SEI, graphite//Prussian blue analogs full cells achieve superior XFC ability (13 min 80%) specific capacity 103 mAh g −1 at 5 C. This work provides fundamental understanding relationship during XFC, which enables rational design chemistry fast‐charging PIBs.

Язык: Английский

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In Situ Orthogonal Polymerization for Constructing Fast-Charging and Long-Lifespan Li Metal Batteries with Topological Copolymer Electrolytes

ACS Energy Letters, Год журнала: 2024, Номер 9(3), С. 843 - 852

Опубликована: Фев. 7, 2024

Fast-charging Li metal batteries (LMBs) with low cost, high safety, and long lifespan are highly desirable for next-generation energy storage technologies yet have been rarely achieved. Here, we report the in situ fabrication of well-designed blend, block, bottle-brush solid-state polymer electrolytes (SPEs) integrating poly(poly(ethylene glycol) methyl ether methacrylate) (PPEGMA) poly(trimethylene carbonate) (PTMC) matrices via Li-catalyzed orthogonal polymerization. Among them, topological SPEs may display quasi-molecular-scale miscibility between PPEGMA PTMC, maximize synergistic coordination Li+ carbonate units at PPEGMA/PTMC interface, simultaneously exhibit ideal mass transport properties a broad electrochemical stability window. Further incorporating trifluoroethyl methacrylate (TFEMA) into SPE allows facile construction robust solid electrolyte interphase (SEI). These, together fast charge transfer kinetics inherited from polymerization technique, enable development first example polymeric LMB capable operating steadily 3C (73% capacity retention after 1000 cycles).

Язык: Английский

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