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

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

Wenyan Chen,

Quanming Tang,

Shujing Wen

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160144 - 160144

Published: Feb. 1, 2025

Language: Английский

Citations

High-Toughness and Hierarchical Stress-Dissipating Binder Based on Physicochemical Dual-Cross-Linking for High-Performance Silicon Anodes DOI

Yang He, Feng Zhou, Yingxi Zhang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

Silicon (Si) is a promising anode material for next-generation lithium-ion batteries (LIBs), but the huge volume change of Si particles causes fracture and delamination from current collector, thereby stifling practical implementation. Herein, high-toughness hierarchical stress-dissipating binder anodes prepared by covalent hydrogen bonding poly(acrylic acid) (PAA) cross-linked polyurethane (CPU). The physicochemical dual-cross-linked CPU-PAA with high toughness, large tensile strength, stress dissipation improves structural integrity minimizes thickness swelling. Finite element analysis confirms that reduces uniformizes distribution within during cycling. As result, Si/CPU-PAA shows capacity retention 82.3% after 150 cycles at density 5 A g–1. Moreover, Si/CPU-PAA//LiNi0.5Co0.2Mn0.3O2 full cell delivers stable cycling performance, highlighting great potential in high-energy-density LIBs. This work provides insights into design high-strength, large-toughness, efficient binders high-performance anodes.

Language: Английский

Citations

Plasma-Enhanced Vacancy Engineering for Sustainable High-Performance Recycled Silicon in Lithium-Ion Batteries DOI

Dingyi Zhang, Hong Gao, Jiayi Li

et al.

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104231 - 104231

Published: April 1, 2025

Language: Английский

Citations

Constructing Asymmetric SiO_x/C Janus Structures with Diverse Carbon Density Frameworks Enables Electrochemical Stability DOI

Miaomiao Jiang, Yangyang Wang,

Chaopeng Xiong

et al.

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: April 8, 2025

Abstract The main challenges limiting the practical application of silicon‐based anode materials are volume fluctuations during cycling and poor intrinsic conductivity. One most effective strategies to address these limitations is incorporation carbon into silicon composites. However, few studies have investigated impact diverse density frameworks on electrochemical performance, primarily due associated with structural construction. Herein, an anisotropic nucleation growth strategy employed control behavior organosilane surface nanospheres by modulating hydrolysis environment, successfully constructing asymmetric SiO x /C Janus structures frameworks, including assembly nanosphere region (BSC) cubic‐ rod‐shaped regions (ESC). mechanisms ESC also investigated. exploration structure reveals that BSC has a denser framework, while exhibits sparse framework. Electrochemical performance confirms material dense framework superior behavior, maintaining capacity 464.4 mA h g −1 after 500 cycles. Among them, porous uniform contribute both stability.

Language: Английский

Citations

How carboxymethylcellulose adsorption and porous active material particles diminish the adhesion of graphite-silicon anodes in lithium-ion batteries DOI

K. Hofmann, Norbert Willenbacher

Energy Materials, Journal Year: 2025, Volume and Issue: 5(8)

Published: April 25, 2025

Due to its adsorption on graphite and superior thickening properties, carboxymethylcellulose (CMC) is widely used as a dispersant rheology modifier in water-based anode slurries for lithium-ion batteries. CMC also provides cohesion the dry layer but exhibits poor adhesion copper foil necessitating addition of styrene-butadiene rubber (SBR) an promoter. High between electrode current collector crucial fabrication, especially electrodes with higher mass loadings. In this work, we investigate how polymeric binder, originally intended dispersing agent, can significantly affect adhesive strength collector. Our results reveal that CMC, by adsorbing onto active material particles (graphite, micro-silicon or nano-silicon), indirectly influences adhesion. The adsorbed hinders direct binding SBR particles, thereby creating weakest link This effect more pronounced molecular weight. Moreover, could show graphite-nano-silicon composite anodes exhibit reduced despite low nano-silicon, since large fraction are trapped porous, micron-sized nano-silicon aggregates. findings highlight importance considering thickener within design, factor exerts indirect, albeit significant, influence

Language: Английский

Citations

Advanced Binder Design for High-performance Silicon Anodes DOI

Liangui Yang,

Tao Meng,

Weijie Zheng

et al.

Energy storage materials, Journal Year: 2024, Volume and Issue: 72, P. 103766 - 103766

Published: Sept. 1, 2024

Language: Английский

Citations

Hierarchically Structured Silicon-Carbon Anodes: Achieving High-Performance All-Solid-State Li-Ion Batteries via Chemical Pre-lithiation and In-Situ Polymerization DOI

Pengyuan Qiu, Mingyu Cui,

Huihui Gan

et al.

Carbon, Journal Year: 2024, Volume and Issue: 233, P. 119905 - 119905

Published: Dec. 9, 2024

Language: Английский

Citations

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

Xiaorui Wang, Hao Li, Wenhui Fu

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 683, P. 36 - 45

Published: Dec. 7, 2024

Language: Английский

Citations