Practical aspects of electrophoretic deposition to produce commercially viable supercapacitor energy storage electrodes

Chakrabarti, Barun; Low, Chee Tong John

doi:10.1039/d0ra09197a

Cited by 11 publications

(6 citation statements)

References 26 publications

(35 reference statements)

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“…In comparison, a recent work by WMG provides much better mass loadings and film thicknesses, as can be gleaned from Tables 5 and 6 246 . Therefore, a versatile EPD method has been established in WMG for preparing high‐performance supercapacitors that meet the industrial standards for good mass loadings and film thicknesses as shown in Figure 15 248 . The EPD conditions used for the study in question were very similar for producing high mass loadings (and decent coating thicknesses) for SiO 2 separators for LiB applications (shown as an example only in Table 6).…”

Section: Research Discovery and Innovation Activities On Epd For Ees ...mentioning

confidence: 99%

“…These electrodes were tested in both coin cell and A7 pouch cell supercapacitors and gave very good performance—excellent capacitance retention is noted for both cells at 0.1 A g −1 current density. Reproduced with permission from RSC 248 …”

Section: Research Discovery and Innovation Activities On Epd For Ees ...mentioning

confidence: 99%

“…246 Therefore, a versatile EPD method has been established in WMG for preparing high-performance supercapacitors that meet the industrial standards for good mass loadings and film thicknesses as shown in Figure 15. 248 The EPD conditions used for the study in question were very similar for producing high mass loadings (and decent coating thicknesses) for SiO 2 separators for LiB applications (shown as an example only in Table 6). 254 In a recently published work, a binder-free EPD procedure was used for preparing TiN nanocoatings with a rapid time constant of 10 ms (determined via impedance spectroscopy).…”

Section: Electrodes For Supercapacitorsmentioning

confidence: 99%

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Modern practices in electrophoretic deposition to manufacture energy storage electrodes

Chakrabarti

Gençten

Bree

et al. 2022

Intl J of Energy Research

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The applications of electrophoretic deposition (EPD) to the development of electrochemical energy storage (EES) devices such as batteries and supercapacitors are reviewed. A discussion on the selection of parameters for optimizing EPD electrode performance, such as light-directed EPD, co-deposition of active materials such as metal oxides and materials manufactured with high porosity and fibrous properties is highlighted. Additionally, means for overcoming obstacles in the improvement of the mechanical properties, conductivity and surface area of EES materials are discussed. The exceptional benefits of EPD such as low cost, small processing time, simple apparatus requirements, homogeneous coatings, binder-free deposits and selective modification associated with thickness and mass loadings leading to effective EES electrode materials are highlighted. Finally, EPD processes have evolved as modern manufacturing tools to produce technologically improved solid electrolytes and separators for lithium-ion and/or sodium-ion batteries, and further research and development programmes are encouraged towards industrialisation.

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Section: Research Discovery and Innovation Activities On Epd For Ees ...mentioning

confidence: 99%

Section: Research Discovery and Innovation Activities On Epd For Ees ...mentioning

confidence: 99%

Section: Electrodes For Supercapacitorsmentioning

confidence: 99%

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Modern practices in electrophoretic deposition to manufacture energy storage electrodes

Chakrabarti

Gençten

Bree

et al. 2022

Intl J of Energy Research

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“…It is receiving a high level of attention in academia, as well as by industry communities in many patents publications, as a modern tool to produce components of electrochemical energy devices. Many examples are recorded in the literature: 1) Energy storage electrodes in lithium-ion battery, [1][2][3][4] supercapacitor [5] and flow battery [6] 2) Solid-state electrolytes in solid oxide fuel cell [7] 3) Membrane electrode assembly in proton exchange fuel cell [8] 4) Photovoltaic electrodes in dye-sensitized solar cell [9] 5) Hydrogen production electrodes in water electrolyser [10] 6) Membrane separator in lithium-ion battery [11] 7) Ceramic-in-polymer electrolyte for lithium-ion battery [12] 8) Porous electrodes in structural lithium-ion battery [13] For lithium-ion batteries, half-cell activities with small-area EPD electrodes have thus far been the focus for fundamental studies. The EPD electrode design have provided useful electronic, ionic and interfacial charge transports in lithium-ion battery applications.…”

Section: Introductionmentioning

confidence: 99%

“… Energy storage electrodes in lithium‐ion battery, [1–4] supercapacitor [5] and flow battery [6] Solid‐state electrolytes in solid oxide fuel cell [7] Membrane electrode assembly in proton exchange fuel cell [8] Photovoltaic electrodes in dye‐sensitized solar cell [9] Hydrogen production electrodes in water electrolyser [10] Membrane separator in lithium‐ion battery [11] Ceramic‐in‐polymer electrolyte for lithium‐ion battery [12] Porous electrodes in structural lithium‐ion battery [13] …”

Section: Introductionmentioning

confidence: 99%

Full Cell Lithium‐Ion Battery Manufacture by Electrophoretic Deposition

Bree

Low

2022

Batteries & Supercaps

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Electrophoretic deposition (EPD) is a proven coating operation at an industrial scale. Initially designed for the automotive industry, it has expanded to other applications, notably ceramic coatings for surface protection, and has found promising application in the battery industry. Whilst fundamental half-cell studies of EPD electrodes are numerous, their practical performance at full-cell level is largely unknown. This study reports fullcell lithium-ion batteries in which anode and cathode are manufactured by EPD, using an exemplary Li 4 Ti 5 O 12 /LiFePO 4 (LTO/LFP) chemistry. Investigations compatible with industry scalability were carried out including a) formulation of colloidal electrolytes for large area electrode manufacture, b) optimisation of EPD parameters providing high coating thickness and mass loading, c) comparison with slurry cast electrodes, d) scaling investigations to prototype large area pouch cells, and e) ease of manufacture with porous current collectors for high power applications. It was found that the practical performance of EPD electrodes outperformed slurry casting in various categories including lower resistances, more extractable capacity, higher power capability and stable cycling robustness.

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Practical Pouch Cell Supercapacitor Electrodes by Electrophoretic Deposition of Activated Carbon on Nickel Foam

Chakrabarti,

Dönmez,

Çobandede

et al. 2024

ChemElectroChem

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This study highlights for the first‐time the utilization of nickel foam coated with activated carbon (AC) via the electrophoretic deposition (EPD) method in the fabrication of A7 sized pouch cell supercapacitors. The scale‐up of electrodes via EPD from coin to pouch cells with mass loadings (10 mg cm−2) and thicknesses (>130 μm) that match industrial standards is also reported. Research investigations include: (a) comparison of a two dimensional (2D) aluminum foil current collector's performance with three dimensional (3D) microporous nickel foam current collectors, (b) impact of EPD of AC onto small (10 cm2) and large areas (50 cm2) of nickel foam, and (c) scaling‐up of coin to pouch cells along with a comparison against electrodes prepared via the standard doctor blade coating (or slurry casting) method. We demonstrate practical cell performance, including specific current loading (40 A g−1), hundred thousand of successive charge and discharge operation (150,000 cycles), power (27 kW kg−1) and energy densities (37.7 W h kg−1), capacitance (174 F g−1), capacitance retention (80 %) and coulombic efficiency (close to 100 %).

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Practical aspects of electrophoretic deposition to produce commercially viable supercapacitor energy storage electrodes

Abstract: Electrophoretic deposition (EPD) is a highly convenient and demonstrated industrial operation for coatings manufacture. It is now suitable for the production of practical energy storage electrodes for batteries, capacitors & solid-state devices.

Cited by 11 publications

References 26 publications

Modern practices in electrophoretic deposition to manufacture energy storage electrodes

Modern practices in electrophoretic deposition to manufacture energy storage electrodes

Full Cell Lithium‐Ion Battery Manufacture by Electrophoretic Deposition

Practical Pouch Cell Supercapacitor Electrodes by Electrophoretic Deposition of Activated Carbon on Nickel Foam

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