Anionic covalent organic framework electrolyte with tailored ion channels for high-areal-capacity solid-state lithium metal battery DOI

Xu Pin Zhuang,

Yangdan Hui,

Yangyang Feng

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

Language: Английский

Host–Guest Inversion Engineering Induced Superionic Composite Solid Electrolytes for High-Rate Solid-State Alkali Metal Batteries DOI Creative Commons
Xiong Xiong Liu, Long Pan, Haotian Zhang

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: March 17, 2025

Abstract Composite solid electrolytes (CSEs) are promising for solid-state Li metal batteries but suffer from inferior room-temperature ionic conductivity due to sluggish ion transport and high cost expensive active ceramic fillers. Here, a host–guest inversion engineering strategy is proposed develop superionic CSEs using cost-effective SiO 2 nanoparticles as passive hosts poly(vinylidene fluoride-hexafluoropropylene) (PVH) microspheres polymer guests, forming an unprecedented “polymer guest-in-ceramic host” (i.e., PVH-in-SiO ) architecture differing the traditional “ceramic guest-in-polymer host”. The exhibits excellent Li-salt dissociation, achieving high-concentration free + . Owing low diffusion energy barriers coefficient, thermodynamically kinetically favorable migrate at /PVH interfaces. Consequently, delivers exceptional of 1.32 × 10 −3 S cm −1 25 °C (vs typically −5 –10 −4 high-cost ceramics), achieved under ultralow residual solvent content 2.9 wt% 8–15 in other CSEs). Additionally, electrochemically stable with anode various cathodes. Therefore, demonstrates high-rate cyclability LiFePO 4 |Li full cells (92.9% capacity-retention 3C after 300 cycles °C) outstanding stability high-mass-loading (9.2 mg high-voltage NCM622 (147.1 mAh g ). Furthermore, we verify versatility by fabricating Na-ion K-ion-based similarly promotions conductivity. Our offers simple, low-cost approach large-scale application beyond.

Language: Английский

Citations

0
Harnessing interfacial engineering in covalent organic frameworks for lithium metal batteries DOI
Xiaomeng Lü,

Junaid Aslam,

Muhammad Waseem

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 535, P. 216604 - 216604

Published: March 20, 2025

Language: Английский

Citations

0
Multilayer Separator-Driven interface stabilization and dendrite suppression for Long-Cycling lithium metal batteries DOI
Dongxia Li, Lingli Liu, Xuan Song

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 693, P. 137586 - 137586

Published: April 12, 2025

Language: Английский

Citations

0
Covalent Triazine Based Frameworks with Donor‐Donor‐π‐Acceptor Structures for Dendrite‐Free Lithium Metal Batteries DOI
Xiaomeng Lü, Haichao Wang, Yiwen Sun

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(41)

Published: July 17, 2024

Abstract The appearance of disordered lithium dendrites and fragile solid electrolyte interfaces (SEI) significantly hinder the serviceability metal batteries. Herein, guided by theoretical predictions, a multi‐component covalent triazine framework with partially electronegative channels (4C‐TA 0.5 TF ‐CTF) is incorporated as protective layer to modulate interface stability Notably, 4C‐TA ‐CTF optimized electronic structure at molecular level fine‐tuning local acceptor‐donor functionalities not only enhances intermolecular interaction thereby providing larger dipole moment improved crystallinity mechanical stress, but also facilitates beneficial effect lithiophilic sites (C−F bonds, cores, C=N linkages aromatic rings) further regulate migration Li + achieve uniform deposition behavior determined various in‐depth in/ ex situ characterizations. Due synergistic organic functionalities, modified full cells perform better than common two/three‐component 2C‐TA‐CTF 3C‐TF‐CTF electrodes, delivering an excellent capacity 116.3 mAh g −1 (capacity retention ratio: 86.8 %) after 1000 cycles 5 C rate capability. This work lays platform for prospective design relative artificial SEI highly stable

Language: Английский

Citations

3
g-C3N4@COF heterojunction filler for polymer electrolytes enables fast Li+ transport and high mechanical strength DOI
Yong-Biao Liu, Yang Song, Yongshang Zhang

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: June 27, 2024

Abstract Solid polymer electrolytes (SPEs) show great promise for high-energy and high-safety lithium metal batteries. However, current SPEs suffer from low ionic conductivity poor mechanical strength. Herein, the g-C3N4@COF heterojunction filler is constructed fast Li+ transport high transference number. In addition, a robust 3D network fabricated by using in order to further improve robustness electrochemical stability. As consequence, g-C3N4@COF-3D network/polymer electrolyte displays an of 1.25×10− 4 S cm− 1 at 30℃, window 5.0 V tensile strength 8.613 MPa. Furthermore, assembled LiFePO4//Li battery with presents remarkable cycling stability capacity retention 99.71% after 600 cycles. Above results indicate potential advanced energy storage devices.

Language: Английский

Citations

1
Fabrication of Scalable Covalent Organic Framework Membrane‐based Electrolytes for Solid‐State Lithium Metal Batteries DOI
Tongtong Liu, Yuan Zhong, Zhiwei Yan

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(50)

Published: Aug. 13, 2024

Abstract The conventional covalent organic framework (COF)‐based electrolytes with tailored ionic conducting behaviors are typically fabricated in the powder morphology, requiring further compaction procedures to operate as solid electrolyte tablets, which hinders large‐scale manufacturing of COF materials. In this study, we present a feasible electrospinning strategy prepare scalable, self‐supporting membranes (COMs) that feature rigid skeleton bonded flexible, lithiophilic polyethylene glycol (PEG) chains, forming an ion conduction network for Li + transport. resulting PEG‐COM exhibit enhanced dendrite inhibition and high conductivity 0.153 mS cm −1 at 30 °C. improved stems from loose pairing structure production higher free content, confirmed by solid‐state 7 NMR experiments. These changes local microenvironment facilitate its directional movement within COM pores. Consequently, symmetrical Li|Li, Li|LFP, pouch cells demonstrate excellent electrochemical performance 60 This offers universal approach constructing scalable COM‐based electrolytes, thereby broadening practical applications COFs lithium metal batteries.

Language: Английский

Citations

0
g-C3N4@COF heterojunction filler for polymer electrolytes enables fast Li+ transport and high mechanical strength DOI
Yong-Biao Liu, Yang Song, Yongshang Zhang

et al.

Ionics, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 6, 2024

Language: Английский

Citations

0
Functionalization of covalent organic frameworks via multicomponent reactions DOI
Xuehui Liu, Peng-Lai Wang, Wei Wang

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 25, 2024

Language: Английский

Citations

0
Anionic covalent organic framework electrolyte with tailored ion channels for high-areal-capacity solid-state lithium metal battery DOI

Xu Pin Zhuang,

Yangdan Hui,

Yangyang Feng

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

Language: Английский

Citations

0