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Identifying Current Collectors that Enable Light-Battery Interactions.

Arvind Pujari1,2, Byung-Man Kim2, Neil C Greenham1

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This summary is machine-generated.

Choosing the right light-accepting current collector is crucial for optical batteries. This study evaluates various materials, providing guidelines for designing efficient photoelectrochemical energy storage devices.

Keywords:
free‐standing electrodesoperando optical microscopyphotobatteries

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Growing interest in light-battery interactions for operando optical studies and photoelectrochemical energy harvesting.
  • Lack of established guidelines for selecting suitable "light-accepting" current collectors in optical batteries.

Purpose of the Study:

  • To analyze and compare the performance of various current collectors for optical batteries.
  • To provide insights into material selection for enhanced photoelectrochemical energy storage and in-situ optical studies.

Main Methods:

  • Evaluation of fluorine-doped tin oxide, indium-tin oxide, silver nanowire-graphene films, carbon paper, carbon nanotube paper, and stainless-steel mesh.
  • Categorization of current collectors into transmissive and non-transmissive based on light-electrode interaction.
  • Assessment of optical/electrical properties, electrochemical stability (linear sweep voltammetry), rate performance, and cycling stability of lithium manganese oxide cathodes.

Main Results:

  • Performance comparison of various current collectors with zinc and lithium anodes.
  • Demonstration that optimal current collector choice depends on specific application and cell chemistry.
  • Identification of key properties influencing performance in optical battery designs.

Conclusions:

  • The selection of current collectors significantly impacts optical battery performance.
  • This research offers critical guidelines for the rational design of future optical cells for in-situ measurements and photoelectrochemical energy storage.
  • Material selection should be tailored to application requirements and battery chemistry for optimal results.