Data driven analytics of porous battery microstructures

Deva, Abhas; Krs, Vojtĕch; Robinson, Lucas Darby; Adorf, Carl S.; Beneš, Bedřich; Glotzer, Sharon C.; Garcı́a, R. Edwin

doi:10.1039/d1ee00454a

Cited by 12 publications

(7 citation statements)

References 37 publications

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“…The porous network provides a facile ion transport pathway, for example, during the application as a lithium-ion battery electrode. 45 Yet, most metal oxides cannot be directly used for electrochemical applications; instead, they must be combined, either via composites or hybrids, with a conductive phase, such as carbon. To achieve such characteristics, the thermal treatment of Ti/Nb oxide hybrid polymer particles needs to be initially optimized.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Tailoring these materials through particle-templated routes leads to ordered porous structures with improved performance. The porous network provides a facile ion transport pathway, for example, during the application as a lithium-ion battery electrode . Yet, most metal oxides cannot be directly used for electrochemical applications; instead, they must be combined, either via composites or hybrids, with a conductive phase, such as carbon.…”

Section: Introductionmentioning

confidence: 99%

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Porous Mixed-Metal Oxide Li-Ion Battery Electrodes by Shear-Induced Co-assembly of Precursors and Tailored Polymer Particles

Boehm

Husmann

Besch

et al. 2021

ACS Appl. Mater. Interfaces

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Due to their various applications, metal oxides are of high interest for fundamental research and commercial usage. Per applications as catalysts or electrochemical devices, the tailored design of metal oxides featuring a high specific surface area and additional functionalities is of the utmost importance for the performance of the resulting materials. We report a new method for preparing free-standing films consisting of hierarchically porous metal oxides (titanium and niobium based) by combining emulsion polymerization and shear-induced monodisperse particle self-assembly in the presence of sol−gel precursors. After thermal treatment, the resulting porous materials can be used as electrodes in Li-ion batteries. The titanium and niobium sol−gel precursors were partially immobilized to the surface of organic core−interlayer particles featuring hydroxyl groups to obtain hybrid organic− inorganic particles through the melt−shear organization process. Free-standing particle-based films, in analogy to elastomeric opal films and colloidal crystals, can be prepared in a convenient one-step preparation process. After thermal treatment, ordered pores are obtained, while the pristine metal oxide precursor shell can be converted to the (mixed) metal oxide matrix. Heat treatment under CO 2 leads to mixed-TiNb oxide/carbon hybrid materials. The highly porous derivative structure enhances electrolyte permeation. When tested as Li-ion battery electrodes, it shows a specific capacity of 335 mAh•g −1 at a rate of 10 mA•g −1 . After 1000 cycles at 250 mA•g −1 , the electrodes still provided a specific capacity of 191 mAh•g −1 .

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Porous Mixed-Metal Oxide Li-Ion Battery Electrodes by Shear-Induced Co-assembly of Precursors and Tailored Polymer Particles

Boehm

Husmann

Besch

et al. 2021

ACS Appl. Mater. Interfaces

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“…However, often pore size distributions are rarely presented, despite being crucial experimental data for application modeling. 148,149 3.2. Crystal Structure.…”

Section: Dynamic Light Scattering (Dls)mentioning

confidence: 99%

“…, , , , , , , , , , , , , , , , , The surface area of 2D materials is claimed to be one of the key material properties beneficial for energy applications. However, often pore size distributions are rarely presented, despite being crucial experimental data for application modeling. , …”

Section: Characterizationmentioning

confidence: 99%

Ex Situ Characterization of 1T/2H MoS₂ and Their Carbon Composites for Energy Applications, a Review

et al. 2023

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The growing interest in the development of next-generation net zero energy systems has led to the expansion of molybdenum disulfide (MoS 2 ) research in this area. This activity has resulted in a wide range of manufacturing/synthesis methods, controllable morphologies, diverse carbonaceous composite structures, a multitude of applicable characterization techniques, and multiple energy applications for MoS 2 . To assess the literature trends, 37,347 MoS 2 research articles from Web of Science were text scanned to classify articles according to energy application research and characterization techniques employed. Within the review, characterization techniques are grouped under the following categories: morphology, crystal structure, composition, and chemistry. The most common characterization techniques identified through text scanning are recommended as the base fingerprint for MoS 2 samples. These include: scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. Similarly, XPS and Raman spectroscopy are suggested for 2H or 1T MoS 2 phase confirmation. We provide guidance on the collection and presentation of MoS 2 characterization data. This includes how to effectively combine multiple characterization techniques, considering the sample area probed by each technique and their statistical significance, and the benefit of using reference samples. For ease of access for future experimental comparison, key numeric MoS 2 characterization values are tabulated and major literature discrepancies or currently debated characterization disputes are highlighted.

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“…1,2 The porous electrode generally shows spatially nonuniform electrochemical capacity due to the inevitable structural and/or compositional heterogeneities in porosity, particle size, density, wettability, contact resistance, etc. 3,4 Meanwhile, the intrinsically nonuniform ion/electron transport features throughout the porous electrode induce site-dependent electrochemical polarization in the microscale and possible side reactions depending on the operando conditions, thus influencing the cycling stability, rate capability, and safety of the battery. 5−7 It is thus of critical importance to recognize these heterogeneities and the underlying mechanisms in the engineering of high-performance batteries.…”

mentioning

confidence: 99%

Optical Approach for Mapping the Intercalation Capacity of Porous Electrodes

Feng,

Ye,

et al. 2023

Anal. Chem.

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The intercalation capacity of a porous electrode in real batteries is not uniform spatially due to the inevitable structural and compositional inhomogeneity and site-dependent ion and electron transport features. Reliable methods to quantify the capacity distribution are highly desirable but absent so far in battery research. In this paper, a novel optical technique, oblique incident reflection difference (OIRD), was employed to monitor in situ the electrochemical ion (de)intercalation behavior of Prussian blue analogue (PBA) porous films. The OIRD signal responded synchronously to the ion (de)intercalation, and the change in the OIRD signal (ΔI) was positively correlated with the local electrochemical capacity, thereby enabling mapping of the spatially resolved ion storage capacity of the films. Optical analysis further showed that the OIRD response originated from the ion (de)intercalation-induced dielectric constant change of PBA films. This work therefore offers an intriguing in situ and spatially resolved tool for the study of rechargeable batteries.

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Data driven analytics of porous battery microstructures

Abstract: The microstructural optimization of porous lithium ion battery electrodes has traditionally been driven by experimental trial and error efforts, based on anecdotal understanding and intuition, leading to the development of...

Cited by 12 publications

References 37 publications

Porous Mixed-Metal Oxide Li-Ion Battery Electrodes by Shear-Induced Co-assembly of Precursors and Tailored Polymer Particles

Porous Mixed-Metal Oxide Li-Ion Battery Electrodes by Shear-Induced Co-assembly of Precursors and Tailored Polymer Particles

Ex Situ Characterization of 1T/2H MoS₂ and Their Carbon Composites for Energy Applications, a Review

Optical Approach for Mapping the Intercalation Capacity of Porous Electrodes

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Data driven analytics of porous battery microstructures

Abstract: The microstructural optimization of porous lithium ion battery electrodes has traditionally been driven by experimental trial and error efforts, based on anecdotal understanding and intuition, leading to the development of...

Cited by 12 publications

References 37 publications

Porous Mixed-Metal Oxide Li-Ion Battery Electrodes by Shear-Induced Co-assembly of Precursors and Tailored Polymer Particles

Porous Mixed-Metal Oxide Li-Ion Battery Electrodes by Shear-Induced Co-assembly of Precursors and Tailored Polymer Particles

Ex Situ Characterization of 1T/2H MoS2 and Their Carbon Composites for Energy Applications, a Review

Optical Approach for Mapping the Intercalation Capacity of Porous Electrodes

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Product

Resources

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Ex Situ Characterization of 1T/2H MoS₂ and Their Carbon Composites for Energy Applications, a Review