A Dual‐Bond Crosslinking Strategy Enabling Resilient and Recyclable Electrolyte Elastomers for Solid‐State Lithium Metal Batteries DOI

Lijiang Yin,

Panpan Zhang, Jun Yang

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(32)

Published: May 24, 2024

Abstract Elastomeric solid polymer electrolytes (SPEs) are highly promising to address the solid‐solid‐interface issues of solid‐state lithium metal batteries (LMBs), but compromises have be made balance intrinsic trade‐offs among their conductive, resilient and recyclable properties. Here, we propose a dual‐bond crosslinking strategy for SPEs realize simultaneously high ionic conductivity, elastic resilience recyclability. An elastomeric SPE is therefore designed with hemiaminal dynamic covalent networks Li + ‐dissociation co‐polymer chains, where −C−N‐ bond maintains load‐bearing network under stress chemically reversible through non‐spontaneous reaction, weaker intramolecular hydrogen mechanically reversible, soft chains endow rapid ion conduction. With this delicate structure, optimized elastomer achieves without loading‐unloading hysteresis, outstanding conductivity 0.2 mS cm −1 (25 °C) chemical Then, exceptional room‐temperature performances obtained repeated plating/stripping tests, stable cycling LMBs either LiFePO 4 or 4.3 V‐class LiFe Mn 0.8 PO cathode. Furthermore, recycled reprocessed can circularly reused in significant performance degradation. Our findings provide an inspiring design principle sustainability challenges LMBs.

Language: Английский

A Dual‐Bond Crosslinking Strategy Enabling Resilient and Recyclable Electrolyte Elastomers for Solid‐State Lithium Metal Batteries DOI

Lijiang Yin,

Panpan Zhang, Jun Yang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(32)

Published: May 24, 2024

Abstract Elastomeric solid polymer electrolytes (SPEs) are highly promising to address the solid‐solid‐interface issues of solid‐state lithium metal batteries (LMBs), but compromises have be made balance intrinsic trade‐offs among their conductive, resilient and recyclable properties. Here, we propose a dual‐bond crosslinking strategy for SPEs realize simultaneously high ionic conductivity, elastic resilience recyclability. An elastomeric SPE is therefore designed with hemiaminal dynamic covalent networks Li + ‐dissociation co‐polymer chains, where −C−N‐ bond maintains load‐bearing network under stress chemically reversible through non‐spontaneous reaction, weaker intramolecular hydrogen mechanically reversible, soft chains endow rapid ion conduction. With this delicate structure, optimized elastomer achieves without loading‐unloading hysteresis, outstanding conductivity 0.2 mS cm −1 (25 °C) chemical Then, exceptional room‐temperature performances obtained repeated plating/stripping tests, stable cycling LMBs either LiFePO 4 or 4.3 V‐class LiFe Mn 0.8 PO cathode. Furthermore, recycled reprocessed can circularly reused in significant performance degradation. Our findings provide an inspiring design principle sustainability challenges LMBs.

Language: Английский

Citations

9
Synchronously enhanced thermal conductivity and dielectric properties of silicone rubber composites filled with the AlN‐PPy‐KH570 multilayer core‐shell hybrid structure DOI
Ke Yang, Yanru Chen, Hanhai Dong

et al.

Polymer Engineering and Science, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 13, 2024

Abstract The rapid development of lithium battery technology is leading to the increasing miniaturization electronic devices, thereby elevating demand for dielectric materials with exceptionally high thermal conductivity and properties. In this study, composites were fabricated by integrating multilayer core‐shell hybrid structure particles into silicone rubber (SR). These created attaching conductive polymer polypyrrole (PPy) silane coupling agent (KH570) onto surface highly thermally ceramic aluminum nitride (AlN). combination PPy KH570 serves enhance interfacial compatibility between AlN SR, concurrently enhancing properties composites. experimental results demonstrated that 50 phr AlN‐PPy‐KH570/SR composite was 0.37 W/(m · K), 1.65 times higher than pure SR (0.23 K)). Additionally, constant increased 4.59, 1.32 (3.48). Moreover, decomposition temperature elevated 475°C. synthesized hold promise widespread use in miniaturized devices operating high‐frequency high‐temperature environments.

Language: Английский

Citations

2
Optical and electronic properties of BCN films deposited by magnetron sputtering DOI
Caiyun Liu, Le Chen, Hong Yin

et al.

The Journal of Chemical Physics, Journal Year: 2024, Volume and Issue: 160(15)

Published: April 16, 2024

Boron carbonitride (BCN) films containing hybridized bonds involving B, C, and N over wide compositional ranges enable an abundant variety of new materials, properties, applications; however, their electronic performance is still limited by the presence structural defects, yielding sluggish mobility electrical conductivity. This work reports on mechanically stable BCN corresponding optical properties. The ternary consisting B-C-N have been achieved varying N2 flow radio frequency magnetron sputtering method. show a bandgap value ranging from 3.32 to 3.82 eV. Hall effect measurements reveal n-type conductivity with improved hall 226 cm2/V s at room temperature for optimal film. n-BCN/p-Si heterojunctions exhibit nonlinear rectifying characteristic, where tunneling behavior dominates injection regimes due density i.e., disorder impurities. Our demonstrates tunable properties BCN/Si p-n diodes and, thus, beneficial potential application in fields optics, optoelectronics, electrics.

Language: Английский

Citations

0
A Dual‐Bond Crosslinking Strategy Enabling Resilient and Recyclable Electrolyte Elastomers for Solid‐State Lithium Metal Batteries DOI

Lijiang Yin,

Panpan Zhang, Jun Yang

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(32)

Published: May 24, 2024

Abstract Elastomeric solid polymer electrolytes (SPEs) are highly promising to address the solid‐solid‐interface issues of solid‐state lithium metal batteries (LMBs), but compromises have be made balance intrinsic trade‐offs among their conductive, resilient and recyclable properties. Here, we propose a dual‐bond crosslinking strategy for SPEs realize simultaneously high ionic conductivity, elastic resilience recyclability. An elastomeric SPE is therefore designed with hemiaminal dynamic covalent networks Li + ‐dissociation co‐polymer chains, where −C−N‐ bond maintains load‐bearing network under stress chemically reversible through non‐spontaneous reaction, weaker intramolecular hydrogen mechanically reversible, soft chains endow rapid ion conduction. With this delicate structure, optimized elastomer achieves without loading‐unloading hysteresis, outstanding conductivity 0.2 mS cm −1 (25 °C) chemical Then, exceptional room‐temperature performances obtained repeated plating/stripping tests, stable cycling LMBs either LiFePO 4 or 4.3 V‐class LiFe Mn 0.8 PO cathode. Furthermore, recycled reprocessed can circularly reused in significant performance degradation. Our findings provide an inspiring design principle sustainability challenges LMBs.

Language: Английский

Citations

0