Both Resilience and Adhesivity Define Solid Electrolyte Interphases for a High Performance Anode

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(22), С. 15209 - 15218

Опубликована: Май 22, 2024

Solid electrolyte interphases (SEIs) are sought to protect high-capacity anodes, which suffer from severe volume changes and fast degradations. The previously proposed effective SEIs were of high strength yet abhesive, inducing a yolk–shell structure decouple the rigid SEI anode for accommodating change. Ambivalently, interfacial void-evolved electro-chemo-mechanical vulnerabilities become inherent defects. Here, we establish new rationale that resilience adhesivity both requirements pioneer design resilient adhesive (re-ad-SEI), integrated into conjugated surface bilayer structure. re-ad-SEI its protected particles exhibit excellent stability almost free thickening particle pulverization during cycling. More promisingly, dynamically bonded intact SEI–anode interfaces enable high-efficiency ion transport provide unique mechanical confinement effect structural integrity anodes. Coulombic efficiency (>99.8%), cycling (500 cycles), superior rate performance have been demonstrated in microsized Si-based

Язык: Английский

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Advanced Micro/Nanostructure Silicon-Based Anode Materials for High-Energy Lithium-Ion Batteries: From Liquid- to Solid-State Batteries

Energy & Fuels, Год журнала: 2024, Номер 38(9), С. 7693 - 7732

Опубликована: Апрель 22, 2024

Silicon, revered for its remarkably high specific capacity (3579 mAh/g), stands poised as a prime contender to supplant conventional graphite anodes. In the pursuit of next generation high-energy lithium-ion batteries burgeoning domain renewable energy, silicon anodes have garnered considerable attention. However, substantial challenges arising from volumetric expansion during charge–discharge cycles severely impeded industrial-scale application anodes, giving rise issues such compromised cycling stability and diminished Coulombic efficiency. For more industrially compatible realm microscale silicon, academic community has proffered an array strategic solutions surmount these impediments. This comprehensive exposition embarks upon systematic survey research progress about micro/nano structure spanning liquid-state solid-state battery architectures. batteries, we distill quintessence material design strategies along with holistic enhancements encompassing prelithiation, binder formulations, electrolyte modulation, allied system facets. Transitioning into sphere this discourse bifurcates quasi-solid-state all-solid-state dimensions. A pioneering consolidation delineates current landscape within batteries. While recent ascendancy is undeniable, myriad yet necessitate resolution. Conclusively, drawing contemporary trajectory development, proffers both forward-looking perspective cogent recommendations forthcoming endeavors.

Язык: Английский

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Efficient Lithium Transport and Reversible Lithium Plating in Silicon Anodes: Synergistic Design of Porous Structure and LiF‐Rich SEI for Fast Charging

Advanced Functional Materials, Год журнала: 2024, Номер 34(33)

Опубликована: Март 5, 2024

Abstract Silicon (Si) anodes hold great promise for enhancing the energy density of lithium‐ion batteries (LIBs). However, issues such as slow intrinsic kinetics and unstable interfaces caused by significant volume changes hinder practical deployment Si anodes. Fast charging is desired Si‐related that worsen Li plating dead Li, making it essential to overcome these safe, reversible charging. Herein, a novel approach proposed combining structural design solid electrolyte interface (SEI) modulation enable efficient safe fast LIBs. 3D porous micro‐particles consisting nanosheets coated with pitch‐based carbon layer are successfully prepared. This provides enhanced ion transport pathways while maintaining material's rate performance tap density. Furthermore, designed localized high‐concentration (LHCE) exhibits lower + desolvation barrier leads formation LiF‐rich SEI, mitigating “tip effect” during charging, stability, demonstrating high Coulombic efficiency. Overall, this study highlights synergistic importance structure SEI regulation in LIB aiding developing superior, storage.

Язык: Английский

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Structural Design and Challenges of Micron‐Scale Silicon‐Based Lithium‐ion Batteries

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

Abstract Currently, lithium‐ion batteries (LIBs) are at the forefront of energy storage technologies. Silicon‐based anodes, with their high capacity and low cost, present a promising alternative to traditional graphite anodes in LIBs, offering potential for substantial improvements density. However, significant volumetric changes that silicon‐based undergo during charge discharge cycles can lead structural degradation. Furthermore, formation excessive solid‐electrolyte interphases (SEIs) cycling impedes efficient migration ions electrons. This comprehensive review focuses on design optimization micron‐scale from both materials systems perspectives. Significant progress is made development advanced electrolytes, binders, conductive additives complement half full‐cells. Moreover, advancements system‐level technologies, such as pre‐lithiation techniques mitigate irreversible Li + loss, have enhanced density lifespan full cells. concludes detailed classification underlying mechanisms, providing summary guide high‐energy‐density devices. It also offers strategic insights address challenges associated large‐scale deployment LIBs.

Язык: Английский

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Unraveling the Fundamental Mechanism of Interface Conductive Network Influence on the Fast-Charging Performance of SiO-Based Anode for Lithium-Ion Batteries

Nano-Micro Letters, Год журнала: 2023, Номер 16(1)

Опубликована: Дек. 4, 2023

Influence of interface conductive network on ionic transport and mechanical stability under fast charging is explored for the first time. The mitigation polarization precisely revealed by combination 2D modeling simulation Cryo-TEM observation, which can be attributed to a higher fraction formation inorganic species in bilayer SEI, primarily contributes linear decrease diffusion energy barrier. improved stress dissipation presented AFM Raman shift critical reduction electrode residual thickness swelling. Progress high-capacity silicon monoxide (SiO)-based anode currently hindered insufficient conductivity notable volume expansion. construction an effectively addresses aforementioned problems; however, impact its quality lithium-ion transfer structure durability yet explored. Herein, influence Cryo-transmission electron microscopy reveal owing solid electrolyte interphase mainly responsible Furthermore, atomic force exhibit substantial generated complete network, stress. This study provides insights into rational design optimized SiO-based anodes with reinforced fast-charging performance.

Язык: Английский

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Element Screening of High-Entropy Silicon Anodes for Superior Li-Storage Performance of Li-Ion Batteries

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(31), С. 21320 - 21334

Опубликована: Июль 26, 2024

The high-entropy silicon anodes are attractive for enhancing electronic and Li-ionic conductivity while mitigating volume effects advanced Li-ion batteries (LIBs), but plagued by the complicated elements screening process. Inspired resemblances in structure between sphalerite diamond, we have selected sphalerite-structured SiP with metallic as parent phase exploring element of silicon-based anodes. inclusion Zn is crucial improving structural stability Li-storage capacity. Within same group, performance significantly improved increasing atomic number order BZnSiP3 < AlZnSiP3 GaZnSiP3 InZnSiP3. Thus, InZnSiP3-based electrodes achieved a high capacity 719 mA h g–1 even after 1,500 cycles at 2,000 g–1, high-rate 725 10,000 owing to its superior lithium-ion affinity, faster conduction diffusion, higher reversibility, mechanical integrity than others. Additionally, incorporation larger sizes leads greater lattice distortion more defects, further facilitating mass charge transport. Following these rules, disordered-cation compounds such GaCuSnInZnSiP6, GaCu(or Sn)InZnSiP5, CuSnInZnSiP5, well mixed-cation -anion compositions, InZnSiPSeTe InZnSiP2Se(or Te), synthesized, demonstrating conductivity. formation mechanism attributed negative energies arising from elevated entropy.

Язык: Английский

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Progress in modification of micron silicon-based anode materials for lithium-ion battery

Journal of Energy Storage, Год журнала: 2024, Номер 93, С. 112286 - 112286

Опубликована: Июнь 4, 2024

Язык: Английский

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Intelligent Stress‐Adaptive Binder Enabled by Shear‐Thickening Property for Silicon Electrodes of Lithium‐Ion Batteries

Advanced Energy Materials, Год журнала: 2024, Номер 14(20)

Опубликована: Апрель 22, 2024

Abstract Elastic binders with supramolecular interactions are widely explored to mitigate the stress caused by volume expansion of electrode materials, such as Si, S, or Li metals, in next‐generation secondary batteries. Herein, a new class elastic is proposed an automatic stress‐control mechanism capable responding real time dynamic local variations. Specifically, this study focuses on shear‐thickening behavior, wherein polymers automatically amplify their viscoelasticity response shear‐stress changes. To realize intelligent stress‐adaptive binder, starch analogs exhibiting properties and unique crystallinity employed for highly expandable Si anodes. The comprehensively investigated using deep‐learning‐based molecular dynamics (MD) simulations situ transmission electron microscopy (TEM) analysis, which determines optimal conditions effectively limiting surface expansion. Among analogs, amylose long‐chain amylopectin (AMLAP) binder demonstrates improved high‐rate capability (1710 mAh g −1 at 5 C) superior reversible capacity (2025 1493 after 100 500 cycles, respectively, 1 properties. Furthermore, AMLAP exhibits favorable characteristics affordable large‐scale production. Hence, clearly that can be considered factor fabricating stable electrodes extremely materials.

Язык: Английский

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Insight into the self-bonding mechanism behind liquid metal/silicon oxide nanocomposite anodes with excellent cycling stability

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160144 - 160144

Опубликована: Фев. 1, 2025

Язык: Английский

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Wood-derived closed pore hard carbon encapsulated micro-sized silicon anode design for long-term practical lithium-ion battery

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160846 - 160846

Опубликована: Фев. 1, 2025

Язык: Английский

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