Water-soluble binder in high-performance silicon-based anode for lithium-ion batteries based on sodium carboxymethyl cellulose and waterborne polyurethane

Green Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Silicon (Si) materials have attracted growing attention in lithium-ion batteries (LIBs) due to their remarkably high theoretical capacity and abundance on Earth.

Язык: Английский

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Mechanical Compatibility in Stitch Configuration and Sensor Adhesion for High‐Fidelity Pulse Wave Monitoring

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Wearable electronics can achieve high-fidelity monitoring of pulse waveforms on the body surface enabling early diagnosis cardiovascular diseases (CVDs). Textile-based wearable devices offer advantages in terms high permeability and comfort. However, knitted strain sensors struggle to capture small-range deformation signals due stress dissipation during friction slip yarns within textiles. They are optimized for mechanical adaptability adhesive capability. In this work, stitch configurations structure adjusted optimize energy ratio waveform fitting performance. These electric-mechanical results enabled selection most suitable clinical diagnosis. On other hand, sensor's adhesion is with respect electrical-force-strain coupling transfer efficiency at interface between skin sensor. The balance storage modulus loss via crosslinking degree polyacrylamide (PAAm) hydrogel network. As a result, sensor enables stable collection from radial dorsalis pedis arteries. human patient evaluations, knitting-based distinguish patients different potential CVD risks through extracted characteristic indicators.

Язык: Английский

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Construction of Protein‐Like Helical‐Entangled Structure in Lithium‐Ion Silicon Anode Binders via Helical Recombination and Hofmeister Effect

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Апрель 27, 2025

Abstract In this study, a novel gelatin‐xanthan gum composite binder is successfully developed with protein‐like helical‐entangled network structure through thermo‐responsive and Hofmeister effect to improve the cycling stability of silicon anodes in lithium‐ion batteries. As temperature changes, molecular chains xanthan gelatin undergo de‐helixing, intertwining, co‐helixing, ultimately self‐assembling into spatial structure. Furthermore, immersing salt solution enhances degree helical entanglement, significantly improving strength toughness. This absorbs dissipates stress strain caused by volume expansion repeated bending, twisting, stretching, similar protein structures, thereby maintaining integrity anode enhancing its stability. The optimized exhibits high initial Coulombic efficiency, favorable rate performance, long‐term At current density 0.5 A g⁻¹, has specific capacity 1779.8 mAh g⁻¹ after 300 cycles, retention 80.65%. study demonstrates feasibility natural polymers forming complex 3D structures self‐assembly intermolecular forces, providing new approach for design binders.

Язык: Английский

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Cooperation of covalent bonds and coordinative bonds stabilizing the Si-binder-Cu interfaces for extending lifespan of silicon anodes

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 683, С. 36 - 45

Опубликована: Дек. 7, 2024

Язык: Английский

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Design of Electrodes and Electrolytes for Silicon‐Based Anode Lithium‐Ion Batteries

Energy & environment materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

The development of lithium‐ion batteries with high‐energy densities is substantially hampered by the graphite anode's low theoretical capacity (372 mAh g −1 ). There an urgent need to explore novel anode materials for batteries. Silicon (Si), second‐largest element outside Earth, has exceptionally high specific (3579 ), regarded as excellent choice material in high‐capacity However, it intrinsic conductivity and volume amplification during service status, prevented from developing further. These difficulties can be successfully overcome incorporating carbon into pure Si systems form a composite constructing buffer structure. This review looks at diffusion mechanism, various silicon‐based configurations (including sandwich, core‐shell, yolk‐shell, other 3D mesh/porous structures), well appropriate binders electrolytes. Finally, summary viewpoints are offered on characteristics structural layout structures, metal/non‐metal doping, compatibility application electrolytes anodes. aims provide valuable insights research anodes high‐performance batteries, their integration electrolyte.

Язык: Английский

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Self-standing TiO₂@CC@PANI core–shell nanowires as flexibles lithium-ion battery anodes

Journal of Materials Science, Год журнала: 2024, Номер 59(44), С. 20657 - 20670

Опубликована: Ноя. 1, 2024

Язык: Английский

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Si anodes via dual strategies of coating Si with a rigid polymer and employing a polymer binder with improved mechanical properties

Journal of Power Sources, Год журнала: 2024, Номер 626, С. 235777 - 235777

Опубликована: Ноя. 11, 2024

Язык: Английский

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Tween 80-assisted synthesis of high conductivity silicon‑carbon composites as anode materials for high-performance lithium-ion batteries

Journal of Energy Storage, Год журнала: 2024, Номер 104, С. 114569 - 114569

Опубликована: Ноя. 17, 2024

Язык: Английский

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