315 citations · 612 across the 10 of their papers we have counts for
12 papers
Interplay between Phase Transformation Instabilities and Spatiotemporal Reaction Heterogeneities in Particulate Intercalation Electrodes
Shubham Agrawal, Peng Bai
Lithium-ion batteries rely on particulate porous electrodes to realize high performance, especially the fast-charging capability. To minimize the particle-wise reaction heterogenei…
Transient Polarization and Dendrite Initiation Dynamics in Ceramic Electrolytes
Rajeev Gopal, Longan Wu, Youngju Lee +2
Solid-state electrolytes, by enabling lithium metal anodes, may significantly increase the energy density of current lithium-ion batteries. However, similar to their liquid counter…
Fast Charging Limits of Ideally Stable Metal Anodes in Liquid Electrolytes
Bingyuan Ma, Peng Bai
Next-generation high-energy-density batteries require ideally stable metal anodes, for which smooth metal deposits during battery recharging are considered a sign of interfacial st…
Operando Electrochemical Kinetics in Particulate Porous Electrodes by Quantifying the Mesoscale Spatiotemporal Heterogeneities
Shubham Agrawal, Peng Bai
Electrochemical energy systems rely on particulate porous electrodes to store or convert energies. While the three-dimensional porous structures were introduced to maximize the int…
Theory of coupled ion-electron transfer kinetics
Dimitrios Fraggedakis, Michael McEldrew, Raymond B. Smith +6
The microscopic theory of chemical reactions is based on transition state theory, where atoms or ions transfer classically over an energy barrier, as electrons maintain their groun…
Concentration Polarization and Metal Dendrite Initiation in Isolated Electrolyte Microchannels
Youngju Lee, Bingyuan Ma, Peng Bai
Lithium metal penetrations through the liquid-electrolyte-wetted porous separator and solid electrolytes are a major safety concern of next-generation rechargeable metal batteries.…
Interplay of phase boundary anisotropy and electro-autocatalytic surface reactions on the lithium intercalation dynamics in LiFePO platelet-like nanoparticles
Neel Nadkarni, Elisha Rejovitzky, Dimitrios Fraggedakis +4
Experiments on single crystal LiFePO (LFP) nanoparticles indicate rich nonequilibrium phase behavior, such as suppression of phase separation at high lithiation rates, stri…
Performance and Degradation of A Lithium-Bromine Rechargeable Fuel Cell Using Highly Concentrated Catholytes
Peng Bai, Martin Z. Bazant
Lithium-air batteries have been considered as ultimate solutions for the power source of long-range electrified transportation, but state-of-the-art prototypes still suffer from sh…
Dendrite Suppression by Shock Electrodeposition in Charged Porous Media
Ji-Hyung Han, Miao Wang, Peng Bai +2
It is shown that surface conduction can stabilize electrodeposition in random, charged porous media at high rates, above the diffusion-limited current. After linear sweep voltammet…
Over-limiting Current and Control of Dendritic Growth by Surface Conduction in Nanopores
Ji-Hyung Han, Edwin Khoo, Peng Bai +1
Understanding over-limiting current (faster than diffusion) is a long-standing challenge in electrochemistry with applications in desalination and energy storage. Known mechanisms…
Simple Formula for Marcus-Hush-Chidsey Kinetics
Yi Zeng, Raymond Smith, Peng Bai +1
The Marcus-Hush-Chidsey (MHC) model is well known in electro-analytical chemistry as a successful microscopic theory of outer-sphere electron transfer at metal electrodes, but it i…
Charge Transfer Kinetics at the Solid-Solid Interface in Porous Electrodes
Peng Bai, Martin Z. Bazant
Interfacial charge transfer is widely assumed to obey Butler-Volmer kinetics. For certain liquid-solid interfaces, Marcus-Hush-Chidsey theory is more accurate and predictive, but i…