Recent Progress in Self-Powered Wireless Sensors and Systems Based on TENG

Sensors, Journal Year: 2023, Volume and Issue: 23(3), P. 1329 - 1329

Published: Jan. 24, 2023

With the development of 5G, artificial intelligence, and Internet Things, diversified sensors (such as signal acquisition module) have become more important in people's daily life. According to extensive use various distributed wireless sensors, powering them has a big problem. Among all methods, self-powered sensor system based on triboelectric nanogenerators (TENGs) shown its superiority. This review focuses four major application areas TENG, including environmental monitoring, human industrial production, The perspectives outlook future are discussed.

Language: Английский

---

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

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(9), P. 7693 - 7732

Published: April 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.

Language: Английский

---

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

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 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.

Language: Английский

---

High‐Performance Silicon Anodes Enabled by Multifunctional Ultrafine Silica Nanoparticle‐Embedded Carbon Coatings for Lithium‐Ion Batteries

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Abstract Silicon (Si) holds immense promise as viable anode for next‐generation high‐energy‐density Li‐ion batteries (LIBs). However, its poor ionic/electronic conductivity and significant volumetric changes during cycling lead to rapidly deteriorated LIB performance. Here, a novel multifunctional coating featuring ultrafine SiO 2 nanoparticles (<7 nm) embedded carbon on Si (termed Si@uSiO ‐C) resolve these challenges is proposed. This unique uSiO ‐C provides high‐efficient electron ion transport pathways, while also improves interfacial stability mitigates volume cycling, thereby enhancing the structural integrity of ‐C, corroborated by extensive experimental computational studies. In addition, abundant interfaces in facilitate Li + evenly distributed impart high electrochemical reactivity mechanical robustness. Consequently, achieves reversible capacity 2093 mAh g −1 at 0.2 A , with initial Coulombic efficiency 88.3%, superior rate capability durability (1000 cycles, 928 1.0 75% retention). Full cells paired commercial LiFePO 4 cathodes demonstrate cyclability, maintaining 80% retention over 500 cycles C. work highlights vital role promoting performance Si‐based anodes high‐performance LIBs.

Language: Английский

---

Recent advances in battery characterization using in situ XAFS, SAXS, XRD, and their combining techniques: From single scale to multiscale structure detection

Exploration, Journal Year: 2023, Volume and Issue: 4(1)

Published: Nov. 20, 2023

Abstract Revealing and clarifying the chemical reaction processes mechanisms inside batteries will bring a great help to controllable preparation performance modulation of batteries. Advanced characterization techniques based on synchrotron radiation (SR) have accelerated development various over past decade. In situ SR been widely used in study electrochemical reactions due their excellent characteristics. Herein, three most wide important battery research were systematically reviewed, namely X‐ray absorption fine structure (XAFS) spectroscopy, small‐angle scattering (SAXS), diffraction (XRD). Special attention is paid how these are understand mechanism improve practical characteristics Moreover, combining advance acquisition single scale information simultaneous multiscale structures, which new perspective Finally, challenges future opportunities for featured current development.

Language: Английский

---

N‐Rich Solid Electrolyte Interface Constructed In Situ Via a Binder Strategy for Highly Stable Silicon Anode

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(34)

Published: May 1, 2023

Abstract Silicon (Si) is regarded as a promising anode material for high‐energy‐density lithium‐ion batteries due to its high specific capacity (4200 mAh g −1 ) and low potential (0.3 V vs Li + /Li). However, the large volume change (over 300%) of Si during lithiation/delithiation process leads severe pulverization, electrode structure destruction, finally fading, which slows down step practical application. Herein, poly(vinylamine) (PVAm) binder containing amino (NH 2 amide (NHCHO) proposed improve stability anodes from particle structure. The N‐containing functional groups show strong interaction with particles form uniform thin layer on surface, would decompose an N‐rich inorganic solid electrolyte interphase (SEI) discharging. mechanical SEI helps relieve pulverization through stress dissipation, maintains structural stability, reduces loss active materials. Thus, PVAm exhibits ≈2000 after 200 cycles, much higher than that using Poly(vinylidene fluoride) (PVDF) (66 Poly(vinyl alcohol) PVA (820 ). This facile strategy provides new perspective application in advanced batteries.

Language: Английский

---

Nano‐single‐crystal‐constructed submicron MnCO ₃ hollow spindles enabled by solid precursor transition combined Ostwald ripening in situ on graphene toward exceptional interfacial and capacitive lithium storage

Carbon Energy, Journal Year: 2023, Volume and Issue: 5(8)

Published: Feb. 8, 2023

Abstract Hollow structuring has been identified as an effective strategy to enhance the cycling stability of electrodes for rechargeable batteries due outstanding volume expansion buffering efficiency, which motivates ardent pursuing on synthetic approaches hollow materials. Herein, intriguing route, combining solid precursor transition and Ostwald ripening (SPTOR), is developed craft nano single‐crystal (SC)‐constructed MnCO 3 submicron spindles homogeneously encapsulated in a reduced graphene oxide matrix (MnCO SMHSs/rGO). It noteworthy that H‐bonding interaction between Mn O 4 nanoparticles (NPs) oxygen‐containing groups GO promotes uniform anchoring NPs GO, mild reductant ascorbic acid triggers progressive solid‐to‐solid from (SMSSs) situ process induces gradual dissolution interior polycrystals SMSSs subsequent recrystallization surface SCs SMHSs. Remarkably, SMHSs/rGO delivers 500th lithium storage capacity 2023 mAh g −1 at 1000 mA , 10 times higher than microspheres/rGO fabricated conventional 2+ salt (202 ). The ultrahigh ultralong lifespan can be primarily attributed superior reaction kinetics reversibility combined with exceptional interfacial capacitive capability, enabled by fast ion/electron transfer, large specific area, robust electrode pulverization inhibition efficacy. Moreover, fascinating in‐depth reactions are observed such oxidation 3+ charge after long‐term cycles further lithiation Li 2 CO discharge process. As such, SPTOR approach may represent viable crafting various functional materials metastable nanomaterials precursors.

Language: Английский

---

Recent progress of Si-based anodes in the application of lithium-ion batteries

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 72, P. 108715 - 108715

Published: Aug. 25, 2023

Language: Английский

---

Boosting Thermal and Mechanical Properties: Achieving High‐Safety Separator Chemically Bonded with Nano TiN Particles for High Performance Lithium‐Ion Batteries

Small, Journal Year: 2023, Volume and Issue: 19(30)

Published: April 8, 2023

Currently, the commercial separator (Celgard2500) of lithium-ion batteries (LIBs) suffers from poor electrolyte affinity, mechanical property and thermal stability, which seriously affect electrochemical performances safety LIBs. Here, composite separators named PVDF-HFP/TiN for high-safety LIBs are synthesized. The integration PVDF-HFP TiN forms porous structure with a uniform rich organic framework. significantly improves adsorption between electrolyte, causing higher absorption rate (192%). Meanwhile, XPS results further demonstrate tight link due to existence TiF bond in PVDF-HFP/TiN, resulting strong impediment puncture lithium dendrites as result improved strengths. And can effectively suppress growth by means flux. In addition, excellent heat resistance stability PVDF-HFP/TiN. As result, LiFePO4 ||Li cells assembled PVDF-HFP/TiN-12 exhibit specific capacity, performance, capacity retention rate. Even high 153 mAh g-1 be obtained at temperature 80 °C. Meaningfully, reliable modification strategy preparation performance is provided.

Language: Английский

---

Metal Phosphorous Chalcogenide: A Promising Material for Advanced Energy Storage Systems

Small, Journal Year: 2023, Volume and Issue: 19(48)

Published: Aug. 4, 2023

Abstract The development of efficient and affordable electrode materials is crucial for clean energy storage systems, which are considered a promising strategy addressing crises environmental issues. Metal phosphorous chalcogenides (MPX 3 ) fascinating class two‐dimensional with tunable layered structure high ion conductivity, making them particularly attractive applications. This review article aims to comprehensively summarize the latest research progress on MPX materials, focus their preparation methods modulation strategies. Additionally, diverse applications these novel in alkali metal batteries, metal‐air all‐solid‐state batteries highlighted. Finally, challenges opportunities presented inspire better potential provides valuable insights into future systems.

Language: Английский

---