Extending the performance limit of anodes: insights from diffusion kinetics of alloying anodes

YS Choi, DO Scanlon, JC Lee - Advanced Energy Materials, 2021 - Wiley Online Library
Alloying anodes have long attracted attention as promising candidate electrodes for
application in grid‐level energy storage systems owing to their high energy capacity …

In situ transmission electron microscopy studies of electrochemical reaction mechanisms in rechargeable batteries

X Wu, S Li, B Yang, C Wang - Electrochemical Energy Reviews, 2019 - Springer
Rechargeable batteries dominate the energy storage market of portable electronics, electric
vehicles and stationary grids, and corresponding performance advancements are closely …

Self-assembly of pulverized nanoparticles: an approach to realize large-capacity, long-lasting, and ultra-fast-chargeable Na-ion batteries

JH Park, YS Choi, CH Kim, YW Byeon, Y Kim… - Nano Letters, 2021 - ACS Publications
The fabrication of battery anodes simultaneously exhibiting large capacity, fast charging
capability, and high cyclic stability is challenging because these properties are mutually …

Diffusion kinetics governing the diffusivity and diffusion anisotropy of alloying anodes in Na-ion batteries

JH Park, YS Choi, YW Byeon, JP Ahn, JC Lee - Nano Energy, 2019 - Elsevier
Diffusion in alloying anode materials was previously viewed as solute diffusion in
conventional alloys. However, solute diffusion, neglecting the presence of a thin …

Diffusion Along Dislocations Mitigates Self‐Limiting Na Diffusion in Crystalline Sn

YW Byeon, JP Ahn, JC Lee - Small, 2020 - Wiley Online Library
The diffusion of carrier ions in alloying anodes often develops compressive stresses in front
of the propagating interface, suppressing the carrier‐ion diffusion and limiting their full …

Deformation and Stresses During Alkali Metal Alloying/Dealloying of Sn-Based Electrodes

P Gandharapu… - Applied …, 2022 - asmedigitalcollection.asme.org
Enhancement of energy density and safety aspects of Li-ion cells necessitate the usage of
“alloying reaction”-based anode materials in lieu of the presently used intercalation-based …

[PDF][PDF] Challenges and applications of In situ TEM for sodium-ion batteries

Y Dai, Z Ma, Y Zou, Y Liang - Mater Lab, 2022 - researchgate.net
Owning to the fast development and bright prospect in energy storage system of sodium-ion
battery, the electrochemical behavior of sodium storage materials has been paid full …

Anisotropic swelling governed by orientation-dependent interfacial Na diffusion in single-crystalline Sb

YS Choi, JH Park, JP Ahn, JC Lee - Chemistry of Materials, 2019 - ACS Publications
The anisotropic volume expansion of anode materials produces locally inhomogeneous
residual stresses, which frequently induce fracture of the anode materials and reduce battery …

Ultrafast Na Transport into Crystalline Sn via Dislocation‐Pipe Diffusion

JH Kim, YH Lee, JH Park, BJ Lee, YW Byeon, JC Lee - Small, 2022 - Wiley Online Library
The charging process of secondary batteries is always associated with a large volume
expansion of the alloying anodes, which in many cases, develops high compressive …

Characterizing multiple continuous phase transitions at an alloying anode with voltammetric measurements and first-principles calculations

YS Choi, JC Lee - Journal of Materials Chemistry A, 2019 - pubs.rsc.org
Electrochemical properties of batteries are closely related to phase transition behaviors at
alloying anodes. This transition process in many cases occurs in a continuous and …