Decoupled Ion Transport via Triadic Molecular Synergy in Flame‐Retardant Quasi‐Solid Electrolytes for Safe Lithium Metal Batteries DOI
Kun Li, Anjun Hu,

Ruizhe Xu

et al.

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

Published: April 16, 2025

Abstract Ionic liquids (IL)‐based quasi‐solid polymer electrolytes (QSPEs) hold promise for safe lithium metal batteries owing to their tunable electrochemical properties and processability. However, traditional design strategy has ignored the interdependencies among “component‐function‐interface”, leading compromised practical applications hindered by sluggish lithium‐ion transport kinetics safety concerns. Herein, a triadic molecular synergy paradigm is proposed decouple conduction mechanisms in flame‐retardant QSPEs. Pentaerythritol tetraacrylate‐lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) provides structural framework, while IL (1‐butyl‐3‐methylimidazole bis (trifluoromethylsulfonyl) imide, BmimTFSI) as plasticizer softens chains weakening intermolecular forces provide an additional ion‐transport pathway imparting properties. Additionally, highly electronegative fluorine atoms of additive (2‐(perfluorohexyl)ethyl methacrylate, PFMA) promote LiTFSI dissociation through electron cloud migration, simultaneously immobilizing TFSI⁻ anions suppressing cationic competition strong PFMA−Bmim + coordination. As proof‐of‐concept, this synergistic achieves high transference number (0.72), forms stable fluoride‐dominated interphases, enhances battery via condensed‐phase mechanism. Experimental validation demonstrates that designed electrolyte significantly cycling stability Li symmetric cells, Li||LiFePO 4 Li||LiNi 0.8 Co 0.1 Mn O 2 cells. The engineering establishes developing high‐performance QSPEs batteries.

Language: Английский

Interfacial MXene engineering enabled lamellar lithium nucleation for dendrite-free lithium anodes DOI
Mengqi Zhu,

Chuyi Cai,

Xuran Li

et al.

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 633, P. 236451 - 236451

Published: Feb. 4, 2025

Language: Английский

Citations

2
Eliminating electron localization by molecular array induces uniform zinc deposition enabling stable zinc anode DOI
Jingcheng Zhang, Zeping Liu, Lina Jia

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 686, P. 613 - 623

Published: Feb. 1, 2025

Language: Английский

Citations

0
A New strategy for stabilizing zinc metal Anodes: Using grain boundaries to strengthen grain boundaries DOI
Jiachi Zhang, Zeping Liu, Bowen Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160157 - 160157

Published: Feb. 1, 2025

Language: Английский

Citations

0
Ameliorating lithium deposition regulation via alloying lithiophilic zinc metal for stable lithium metal batteries DOI
Mengqi Zhu, X. M. Teng,

Xuran Li

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160150 - 160150

Published: Feb. 1, 2025

Language: Английский

Citations

0
A thermal transfer-enhanced zinc anode for stable and high-energy-density zinc-ion batteries DOI

Sibel'dina La,

Yong Gao, Qinghe Cao

et al.

Matter, Journal Year: 2025, Volume and Issue: unknown, P. 102013 - 102013

Published: Feb. 1, 2025

Language: Английский

Citations

0
Controllable alloying of nickel driven lithiophilicity enhancement for uniform lithium nucleation/deposition DOI
Ting Xie, Xinghao Zhang, Yutong Li

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161564 - 161564

Published: March 1, 2025

Language: Английский

Citations

0
Customized Design of R‐SO3H‐Containing Binders for Durable Iodine‐Loading Cathode of Zinc–Iodine Batteries DOI Open Access
Xiaoxiao Liang, Qinxi Dong,

Shan Guo

et al.

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

Published: March 24, 2025

Abstract The challenges of iodine dissolution and polyiodide shuttle behavior severely hinder the development zinc–iodine batteries (ZIBs). Among battery components, binders play a vital role in maintaining mechanical integrity facilitating conversion reaction iodine‐loading cathode ZIBs. Herein, series polyimide‐based polymers rich sulfonic acid group (R‐SO 3 H) are elaborately designed as functional for cathodes. According to spectroscopic characterization theoretical calculation results, PI‐4S binder with R‐SO H, hydroxyl imide groups holds stronger chemisorption capability I 2 /I − species, which effectively helps block active iodine's behavior. As result, corresponding ZIBs deliver reversible capacity 142.7 mAh g −1 over 600 cycles at 0.2 A , high 157.6 500 0.5 50 °C, durable cycling stability 88 15000 4 . This work guides autonomous design multifunctional polymer cathodes facilitates practical application

Language: Английский

Citations

0
Integrating Ethereal Molecular Backbones into the Ester Solvent with High Solubility of Nitrate for High‐Voltage Li Metal Batteries DOI

Yun Shen,

Tevin Li,

Kaixin Ren

et al.

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

Published: April 8, 2025

Abstract The high‐energy‐density Li metal batteries require high‐voltage cathode, low negative/positive capacity (N/P) ratio and lean electrolyte. Despite the all‐fluorinated electrolytes with severe corrosion, development of ester is stagnant due to incompatibility solvent anode. Hence, various electrolyte additives have been developed. Among them, LiNO 3 considered as most effective additive for improving reversibility deposition. Unfortunately, their solubility into extremely low. This investigation suggests that strong ionic bonds in solvation energy are main triggers insolubility a new organic nitrate salt (N‐propyl‐N‐methylpyrrolidinium (Py 13 NO )) large cations liner (dipropyleneglycol methyl ether acetate (DPGMEA)) designed, which integrates ethereal molecular backbones solvent. Consequently, containing 1.2 m lithium bis(fluorosulfonyl)imide (LiFSI), 0.3 Py 0.1 disfluorophosphate (LiPO 2 F ) fluoroethylene carbonate (FEC):DPGMEA (2:8) showcases excellent electrochemical performance batteries. Eventually, “1 Ah level” Li||LiNi 0.8 Co Mn O (NCM811) pouch cell (N/P ≈1.2; electrolyte/capacity (E/C) ≈2.5 g −1 exhibits cycle life over 150 times designed

Language: Английский

Citations

0
Thermoresponsive Mono‐Solvent Electrolyte Inhibiting Parasitic Reactions for Safe Lithium Metal Batteries DOI
Jiaxin Guo, Chang Gao, Yunfei Du

et al.

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

Published: April 10, 2025

Abstract Solvents in liquid and gel polymer electrolytes are recognized for contributing to high ionic conductivity high‐energy‐density lithium metal batteries. However, parasitic reactions involving solvents induce safety risks under thermal abuse conditions poor lifespan during room‐temperature cycles, which rarely investigated. This study introduces a thermoresponsive mono‐solvent electrolyte as built‐in switch. The polymerizes at elevated temperatures, creating passivate network without residue solvents. exhibits stability with 91% mass retention 200 °C significantly suppresses side between the electrolyte, reducing runaway risks. Ah‐level Li||LiNi 0.8 Co 0.1 Mn O 2 pouch batteries employing this can efficiently improve critical temperature of by 75 compared electrolyte. At ambient promotes formation stable solid interphase (SEI) rich LiF Li O, effectively dendrite growth on anode. Consequently, 0.5 0.2 0.3 cells retain capacity after 152 even high‐loading cathodes (19.7 mg cm −2 , 3 mAh ). research offers valuable insights into inhibiting electrochemical cycle runaway, enhancing

Language: Английский

Citations

0
Decoupled Ion Transport via Triadic Molecular Synergy in Flame‐Retardant Quasi‐Solid Electrolytes for Safe Lithium Metal Batteries DOI
Kun Li, Anjun Hu,

Ruizhe Xu

et al.

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

Published: April 16, 2025

Abstract Ionic liquids (IL)‐based quasi‐solid polymer electrolytes (QSPEs) hold promise for safe lithium metal batteries owing to their tunable electrochemical properties and processability. However, traditional design strategy has ignored the interdependencies among “component‐function‐interface”, leading compromised practical applications hindered by sluggish lithium‐ion transport kinetics safety concerns. Herein, a triadic molecular synergy paradigm is proposed decouple conduction mechanisms in flame‐retardant QSPEs. Pentaerythritol tetraacrylate‐lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) provides structural framework, while IL (1‐butyl‐3‐methylimidazole bis (trifluoromethylsulfonyl) imide, BmimTFSI) as plasticizer softens chains weakening intermolecular forces provide an additional ion‐transport pathway imparting properties. Additionally, highly electronegative fluorine atoms of additive (2‐(perfluorohexyl)ethyl methacrylate, PFMA) promote LiTFSI dissociation through electron cloud migration, simultaneously immobilizing TFSI⁻ anions suppressing cationic competition strong PFMA−Bmim + coordination. As proof‐of‐concept, this synergistic achieves high transference number (0.72), forms stable fluoride‐dominated interphases, enhances battery via condensed‐phase mechanism. Experimental validation demonstrates that designed electrolyte significantly cycling stability Li symmetric cells, Li||LiFePO 4 Li||LiNi 0.8 Co 0.1 Mn O 2 cells. The engineering establishes developing high‐performance QSPEs batteries.

Language: Английский

Citations

0