The role of anions on the Helmholtz Plane for the solid-liquid interface in aqueous rechargeable lithium batteries

Hu, Jiangtao; Ren, Wenju; Chen, Xin; Li, Yiwei; Huang, Weiyuan; Yang, Kai; Yang, Luyi; Lin, Yuan; Zheng, Jiaxin; Pan, Feng

doi:10.1016/j.nanoen.2020.104864

Cited by 35 publications

(28 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[19,20] The fundamental reason for these problems lies in the electrode reactions in the diffusion layer and Helmholtz layer at the interface between electrolyte and electrode during zinc deposition. [21][22][23][24][25] That is, the solvated Zn 2+ diffuses from the diffusion layer to the outer Helmholtz plane (OHP) to realize de-solvation, followed by charge transfer and completion of the deposition step in the inner Helmholtz plane (IHP). However, to minimize the surface energy, zinc tends to nucleate and grow aggregated, forming low-dimensional dendrites during the diffusion and deposition process of Zn 2+ , due to the thermodynamic instability of metal crystal nucleation and growth process, and the lowest energy consumption principle in the ion diffusion and charge transfer process.…”

Section: Doi: 101002/aenm202103557mentioning

confidence: 99%

Anti‐Corrosion for Reversible Zinc Anode via a Hydrophobic Interface in Aqueous Zinc Batteries

Guan

Yang

et al. 2022

Advanced Energy Materials

128

View full text Add to dashboard Cite

Water corrosion and dendrite growth seriously break the zinc plating/stripping process at the electrolyte/anode interface, causing the instability of the zinc metal anode of aqueous zinc batteries. Herein, a self‐consistent hydrophobic interface and orderly channels are assembled by three quaternary ammonium cationic surfactants, which can block the water erosion. Of particular interest, experimental results combined with theoretical calculation (DFT) reveals that the hydrophobic groups in quaternary ammonium cations are the determinaning factor in the kinetic process of zinc ion deposition and the life of the zinc anode. The massive micelles formed by benzyldimethyldodecylammonium with dodecyl and benzyl groups cause great hindrance to the transport and deposition of zinc ions. And dodecyltrimethylammonium with only a main hydrophobic group of dodecyl results in the higher polarization overpotential or voltage hysteresis for the zinc plating and lower coulombic efficiency (CE) < 99%. Surprisingly, the hydrophobic interface assembled by benzyltrimethylammonium (TMBA+) with a main benzyl group can inhibit side reactions and regulate zinc uniform deposition. And the batteries based on TMBA+ can achieve superb cycle stability with low voltage hysteresis and almost 100% CE. The proposed hydrophobic interface formed by quaternary ammonium cationic surfactants establishes pioneering work on zinc anode stability for zinc batteries and beyond.

show abstract

Section: Doi: 101002/aenm202103557mentioning

confidence: 99%

Anti‐Corrosion for Reversible Zinc Anode via a Hydrophobic Interface in Aqueous Zinc Batteries

Guan

Yang

et al. 2022

Advanced Energy Materials

128

View full text Add to dashboard Cite

show abstract

“…Combining with the understanding of Li + behavior in the bulk of electrolyte, Hu et al studied the effects of applied Li salts on the interface dynamics. [55] As exhibited in Figure 7F, with the same cation layer and Janus interface, the anion layer in inner Helmholtz plane (IHP) has a significant influence on the Li + diffusion process cross interface, where Li salt molecules with a smaller anion and higher dissociation degree present fast interfacial electrochemical kinetics. In organic electrolyte, Chong et al studied the effects of adsorption layer on the formation of SEI layer by introducing functional ions, leading to excellent electrochemical performance such as an high average Coulombic efficiency of 99.5% over 500 cycles.…”

Section: Electrolytementioning

confidence: 95%

“…[ 128 ] (F) The relationship of energy barriers of Li + migration in the IHP and outer Helmholtz plane (OHP), which are denoted as E a1 and E a2 , respectively. [ 55 ] (G) The effects of specific adsorption in IHP and OHP on the energy barriers of Li + diffusion, which are denoted as E 1 and E 2, respectively [ 129 ]…”

Section: Li‐based Dilute Electrolytesmentioning

confidence: 99%

“…studied the effects of applied Li salts on the interface dynamics. [ 55 ] As exhibited in Figure 7F, with the same cation layer and Janus interface, the anion layer in inner Helmholtz plane (IHP) has a significant influence on the Li + diffusion process cross interface, where Li salt molecules with a smaller anion and higher dissociation degree present fast interfacial electrochemical kinetics. In organic electrolyte, Chong et al.…”

Section: Li‐based Dilute Electrolytesmentioning

confidence: 99%

“…Here, based on the extensive electrolyte-related works from 1970s to nowadays (as illustrated in Scheme 1) [2][3][4][50][51][52][53][54][55] this review will start by summarizing characterization techniques of electrolyte structures. [24,28,[56][57][58] Then, the cationic coordination and aggregation structures from Li-based dilute solutions (around 1 mol dm −3 ) to HCEs, then to LHCEs, will be summarized and their connections to cell performance will be understood.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of electrolyte structural evolution on battery applications: Cationic aggregation from dilute to high concentration

Zheng

et al. 2022

Aggregate

Self Cite

View full text Add to dashboard Cite

In the context of the rapid expansion of the electric vehicle market, the request for high‐energy‐density lithium‐ion batteries (LIBs) has steadily increased, hence the demand for highly stable electrolytes. Over the past years, efforts have been devoted to the improvement of electrolyte materials. As a benchmarking breakthrough, the achievement of high concentration electrolyte (HCE) can be attributed to the altered cationic aggregation (i.e., cation‐solvent and cation‐anion coordination environment), which offers technical superiority over the widely applied conventional dilute electrolytes. More recently, based on the understanding of the dilute electrolyte and HCE, the concept of localized HCE (LHCE) has been proposed and extensively investigated. All these findings reveal a roadmap of electrolyte optimization for high‐performance LIBs via coordination structure regulation. Through elucidating the correlation of structure evolution therein and its critical effects on battery performance, this review aims to establish the design principle of electrolytes based on their structures other than component studies and thereby accelerate the development of high‐performance electrolytes.

show abstract

Helmholtz Plane Reconfiguration Enables Robust Zinc Metal Anode in Aqueous Zinc‐Ion Batteries

Wu,

Hu,

Zhang

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

Aqueous zinc‐ion batteries are promising for next‐generation energy storage systems. However, the zinc dendrite growth, corrosion, and hydrogen evolution reaction at the electrochemical interface severely impede their further development. Herein, a Zn2+‐rich and H2O‐poor Helmholtz plane is constructed to regulate the electrochemical interface between the zinc anode and the electrolyte. Electrochemical and in situ spectroscopy characterizations reveal that the designed electric double layer with abundant Zn2+ coordination sites and less H2O content can facilitate rapid electron transfer, homogenize Zn2+ deposition, and alleviate the side reactions induced by active H2O. Benefiting from the high reversibility and stability of zinc anode, the Zn||Zn symmetric cell can be cycled over 1000 h at 1 mA cm−2 and the Zn||NH4V4O10 full cell can maintain a capacity of 85.23% for 1000 cycles at 3 A g−1. This work aims at Helmholtz plane reconfiguration and provides a realizable strategy in interface construction for other similar systems.

show abstract

The role of anions on the Helmholtz Plane for the solid-liquid interface in aqueous rechargeable lithium batteries

Cited by 35 publications

References 26 publications

Anti‐Corrosion for Reversible Zinc Anode via a Hydrophobic Interface in Aqueous Zinc Batteries

Anti‐Corrosion for Reversible Zinc Anode via a Hydrophobic Interface in Aqueous Zinc Batteries

Influence of electrolyte structural evolution on battery applications: Cationic aggregation from dilute to high concentration

Helmholtz Plane Reconfiguration Enables Robust Zinc Metal Anode in Aqueous Zinc‐Ion Batteries

Contact Info

Product

Resources

About