Toward Long‐Life High‐Voltage Aqueous Li‐Ion Batteries: from Solvation Chemistry to Solid‐Electrolyte‐Interphase Layer Optimization Against Electron Tunneling Effect DOI
Insu Jeong, Sungho Kim,

Youngbi Kim

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 27, 2024

Abstract Water is pursued as an electrolyte solvent for its non‐flammable nature compared to traditional organic solvents, yet narrow electrochemical stability window (ESW) limits performance. Solvation chemistry design widely adopted the key suppress reactivity of water, thereby expanding ESW. In this study, acetamide‐based ternary eutectic achieved ESW ranging from 1.4 5.1 V. The confines water molecules within primary solvation sheath Li‐ions, reducing free and breaking hydrogen bond network. Despite this, initial capacity retention suboptimal due inadequate formation solid‐electrolyte‐interphase (SEI) layers. To address additional evolution reaction induced by widening operation voltage range, optimizing SEI layer mitigate electron tunneling effect. This approach resulted in a denser LiF‐rich layer, effectively preventing decomposition improving long‐term cycle stability. optimized reduced barrier, achieving discharge 152 mAh g −1 at 1 C maintaining 76% (116 ) after 1000 cycles. study highlights critical role both structure optimization enhancing performance high‐voltage aqueous Li‐ion batteries.

Language: Английский

Water-in-polymer electrolyte with a wide electrochemical window and recyclability DOI

Shu‐Meng Hao,

Jianxun Zhu,

Shuang He

et al.

Nature Sustainability, Journal Year: 2024, Volume and Issue: 7(5), P. 661 - 671

Published: April 18, 2024

Language: Английский

Citations

26
Interfacially-localized high-concentration electrolytes for high-performance rechargeable aqueous lithium-ion batteries DOI Creative Commons

Guohong Shen,

Shinji Kondou,

Gakuto Wada

et al.

EES batteries., Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Interfacially-localized high-concentration electrolytes were developed using an anionic surfactant and a magnesium( ii ) salt to achieve selective Li ion transport, high electrochemical stability superior SEI formation in aqueous electrolytes.

Language: Английский

Citations

2
Microstructure Design of Electrolytes for High-Energy-Density Aqueous Batteries DOI

Canfu Zhang,

Binbin Chen, Qinlong Chen

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(9), P. 4691 - 4698

Published: Sept. 3, 2024

Strengthening water (H2O) interaction is a universal strategy for reducing H2O reactivity, yet often at the expense of kinetics. Here, we unveiled controllable modulation molecular structures in aqueous electrolytes and their tailorable electrochemical performance high-energy batteries. The H-bond properties special distributions are identified as crucial parameters to decouple stability transport Li+ aqueous-based electrolytes. It found that mildly solvating ethylene glycol diethyl ether (DEE) capable balancing both Li-ion batteries with greatly extended window 1.4–5.2 V vs. Li+/Li high ionic conductivity 7.2 mS cm–1 room temperature low salt concentration (1.57 mol/L). LiMn2O4||Li4Ti5O12 cells deliver outstanding cycling over 300 cycles 1C. One Ah pouch cell demonstrated energy density 76.76 Wh kg–1 0.2C stable −20 °C. This work provides new insights strategies design advanced rechargeable

Language: Английский

Citations

9
Construction of Bi2O3/Bi2S3 Hierarchical Heterostructures as Advanced Multi-Ions Storage Electrodes for Fibrous Aqueous Batteries DOI

Jinwen Fu,

Ao Shen, Wenyuan Zhang

et al.

Materials Today Energy, Journal Year: 2025, Volume and Issue: unknown, P. 101815 - 101815

Published: Jan. 1, 2025

Language: Английский

Citations

1
Environmentally Benign and Long Cycling Mn-Ion Full Batteries Enabled by Hydrated Eutectic Electrolytes and Polycarbonyl Conjugated Organic Anodes DOI

Tengfei Dai,

Binze Yang,

Jie Wei

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Aqueous rechargeable manganese (Mn)-ion batteries have recently emerged as a promising candidate for multivalent ion batteries. However, challenges remain, particularly in expanding the electrolyte's voltage window and identifying compatible anode materials. Herein, we introduce Mn-ion full battery comprising nickel hexacyanoferrate (NiHCF) cathode, perylene-3,4,9,10-tetracarboxylic diimide (PTCDI) anode, novel hydrated eutectic electrolyte formulated from Mn(ClO4)2·6H2O acetamide. This composition, optimized molar ratio, provides stable solvation structure that suppresses water reactivity supports high ionic conductivity, confirmed by spectroscopic molecular dynamics analyses. The PTCDI facilitates highly reversible Mn2+ storage via unique enolization redox reaction, delivering exceptional rate capability cycling stability. As result, NiHCF||PTCDI achieves 1.2 V plateau, excellent performance (up to 5.0 A g-1), long life with 95.6% capacity retention over 1200 cycles at 1.0 g-1. study proposes feasible strategy construction of environment-friendly, long-life low-cost aqueous batteries, offering sustainable high-performance solution future energy applications.

Language: Английский

Citations

0
Hydrophobic-unit-regulated hydrogel electrolytes with high water content and low salt concentration for high-voltage aqueous batteries DOI
Chuan Li, Tairan Wang, Joseph H. C. Lai

et al.

Joule, Journal Year: 2025, Volume and Issue: unknown, P. 101827 - 101827

Published: Feb. 1, 2025

Language: Английский

Citations

0
Aqueous Secondary Batteries: Status and Challenges DOI
Yongcai Zhang, Xiaoyu Ji, Chunsong Xie

et al.

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104186 - 104186

Published: March 1, 2025

Language: Английский

Citations

0
Regulated solvation structure and solid electrolyte interfaces via imidazolium ionic gel electrolytes with high Li-ion transference number for Li-metal batteries DOI

Xiuling Dong,

Wei Chen, Xinyi Ge

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 682, P. 124 - 134

Published: Nov. 28, 2024

Language: Английский

Citations

1
Toward Long‐Life High‐Voltage Aqueous Li‐Ion Batteries: from Solvation Chemistry to Solid‐Electrolyte‐Interphase Layer Optimization Against Electron Tunneling Effect DOI
Insu Jeong, Sungho Kim,

Youngbi Kim

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 27, 2024

Abstract Water is pursued as an electrolyte solvent for its non‐flammable nature compared to traditional organic solvents, yet narrow electrochemical stability window (ESW) limits performance. Solvation chemistry design widely adopted the key suppress reactivity of water, thereby expanding ESW. In this study, acetamide‐based ternary eutectic achieved ESW ranging from 1.4 5.1 V. The confines water molecules within primary solvation sheath Li‐ions, reducing free and breaking hydrogen bond network. Despite this, initial capacity retention suboptimal due inadequate formation solid‐electrolyte‐interphase (SEI) layers. To address additional evolution reaction induced by widening operation voltage range, optimizing SEI layer mitigate electron tunneling effect. This approach resulted in a denser LiF‐rich layer, effectively preventing decomposition improving long‐term cycle stability. optimized reduced barrier, achieving discharge 152 mAh g −1 at 1 C maintaining 76% (116 ) after 1000 cycles. study highlights critical role both structure optimization enhancing performance high‐voltage aqueous Li‐ion batteries.

Language: Английский

Citations

1