Alloy‐Boosted Potassiophilic Membrane Interphase for Ultrastable K Metal Anodes DOI
Xiaopeng Chen, Mingxiang Zhang, Jia Li

et al.

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

Published: Dec. 13, 2024

Abstract The advancement of K metal anodes has long been hindered by challenges including dendrite proliferation and volume expansion amid electrochemical cycles. Generic interlayer design for extended its uptake/release mechanism remain unexplored to date. Herein, a generic alloy‐boosted strategy is reported devise ZnX‐loaded (X = S, Se or Te) porous carbon nanofiber (PCNF) membrane as an efficient 3D interphase layer anodes. Theoretical computations experimental investigations suggest that representative ZnTe acts alloying site, thereby reducing the nucleation energy barrier optimizing deposition pattern K. Such maneuver enables dendrite‐free plating within interface layer, which facilitates construction anode. As result, symmetric cell modified with ZnTe@PCNF demonstrates lifespan over 3100 h. When coupled cathode, full delivers capacity retention 94% after 500 cycles at 1.0 A g⁻¹, showing potential development practically viable batteries.

Language: Английский

Recent advances in potassium metal batteries: electrodes, interfaces and electrolytes DOI Creative Commons
Jianlu Sun, Yichen Du, Yijiang Liu

et al.

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review explores the latest advancements in potassium metal batteries, including electrode design, interface engineering, and electrolyte optimization to suppress dendrite formation enhance cycling stability.

Language: Английский

Citations

11
Optimized K+ Deposition Dynamics via Potassiphilic Porous Interconnected Mediators Coordinated by Single‐Atom Iron for Dendrite‐Free Potassium Metal Batteries DOI Creative Commons

Tsann Lin,

Yi‐Chun Yang,

Hsing‐Yu Tuan

et al.

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

Published: Jan. 9, 2025

Abstract Potassium metal batteries are emerging as a promising high‐energy density storage solution, valued for their cost‐effectiveness and low electrochemical potential. However, understanding the role of potassiphilic sites in nucleation growth remains challenging. This study introduces single‐atom iron, coordinated by nitrogen atoms 3D hierarchical porous carbon fiber (Fe─N‐PCF), which enhances ion electron transport, improves diffusion kinetics, reduces energy barriers potassium deposition. Molten infusion experiments confirm Fe─N‐PCF's strong properties, accelerating adsorption kinetics improving deposition performance. According to Scharifker‐Hills model, traditional substrates without cause instantaneous nucleation, leading dendritic growth. In contrast, integration porosity promotes uniform progressive dense deposition, confirmed dimensionless i 2 /i max versus t/t plots real‐time situ optical microscopy. Consequently, X‐ray diffraction demonstrated stable cycling over 1900 h, while Fe─N‐PCF@K||PTCDA full cell retained 69.7% its capacity after 2000 cycles (72 mAh g −1 ), with voltage hysteresis 0.876 V, confirming potential high extended cycle life, paving way future advancements technology.

Language: Английский

Citations

1
Conformational Gearing of Black Phosphorus Anode via Biomimetic Adaptive Mechanism for Fast Charging and Low-Temperature Adaptability in Potassium Batteries DOI
Jian Wang, Fusheng Liu, Guohui Qin

et al.

Energy storage materials, Journal Year: 2025, Volume and Issue: unknown, P. 104101 - 104101

Published: Feb. 1, 2025

Language: Английский

Citations

0
Construction of KF‐Rich Solid Electrolyte Interfaces Based on the Electrodeposition Behavior of FEC Additives for Protecting K‐Metal Anodes DOI Open Access
Lin Zhang, Jie Xu,

Laiping Li

et al.

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

Published: March 17, 2025

Abstract Potassium metal (K) electrodes have attracted much attention as one of the most promising anode materials in potassium batteries. Nevertheless, dendrite growth and unstable solid electrolyte interface (SEI) seriously hindered practical application potassium‐metal anodes. Therefore, to address aforementioned issue, a brand‐new method is proposed: electrodeposition construct KF‐rich artificial SEI layer, which can improve stability cycle time K anode. The homogeneous layer formed via an situ reaction between fresh additive fluoroethylene carbonate (FEC) during electrodeposition. This exerts tremendous effects on protecting electrode inhibiting dendrites. With uniform robust symmetric battery has been stably cycled for more than 1400 h conventional (0.8 m KPF 6 ‐based (EC:DEC = 1:1, v/v)). In addition, K||Prussian blue (PPB) batteries with this be operated 200 cycles average Coulombic efficiency 99.4%. study sheds light construction mechanism K‐metal

Language: Английский

Citations

0
Sacrificial Additive C60-Assisted Catholyte Buffer Layer for Li1+xAlxTi2–x(PO4)3-Based All-Solid-State High-Voltage Batteries DOI

Xuan Wang,

Shuo Huang, Benben Wei

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(34), P. 44912 - 44920

Published: Aug. 20, 2024

All-solid-state batteries with oxide electrolytes and high-nickel layered cathodes (LiNi

Language: Английский

Citations

0
Alloy‐Boosted Potassiophilic Membrane Interphase for Ultrastable K Metal Anodes DOI
Xiaopeng Chen, Mingxiang Zhang, Jia Li

et al.

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

Published: Dec. 13, 2024

Abstract The advancement of K metal anodes has long been hindered by challenges including dendrite proliferation and volume expansion amid electrochemical cycles. Generic interlayer design for extended its uptake/release mechanism remain unexplored to date. Herein, a generic alloy‐boosted strategy is reported devise ZnX‐loaded (X = S, Se or Te) porous carbon nanofiber (PCNF) membrane as an efficient 3D interphase layer anodes. Theoretical computations experimental investigations suggest that representative ZnTe acts alloying site, thereby reducing the nucleation energy barrier optimizing deposition pattern K. Such maneuver enables dendrite‐free plating within interface layer, which facilitates construction anode. As result, symmetric cell modified with ZnTe@PCNF demonstrates lifespan over 3100 h. When coupled cathode, full delivers capacity retention 94% after 500 cycles at 1.0 A g⁻¹, showing potential development practically viable batteries.

Language: Английский

Citations

0