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Related Concept Videos

Batteries and Fuel Cells03:12

Batteries and Fuel Cells

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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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A parallel plate capacitor, when connected to a battery, develops a potential difference across its plates. This potential difference is key to the operation of the capacitor, as it determines how much electrical energy the capacitor can store.
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Updated: Jan 12, 2026

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
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Engineered Protein-Based Ionic Conductors for Sustainable Energy Storage Applications.

Juan David Cortés-Ossa1,2, Paolo Blesio3, Marcial Fernandez-Castro4

  • 1BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, Vizcaya, 48940, Spain.

Advanced Materials (Deerfield Beach, Fla.)
|November 3, 2025
PubMed
Summary
This summary is machine-generated.

Engineered protein films show enhanced ionic conductivity for sustainable energy storage. This breakthrough utilizes self-assembling protein scaffolds for improved biocompatible conductors in bioelectronics and green energy.

Keywords:
bioelectronicsbiomaterialsionic conductivityprotein engineeringsupercapacitors

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Area of Science:

  • Biomaterials Science
  • Materials Chemistry
  • Bioelectronics

Background:

  • Protein-based biomaterials offer sustainable and biocompatible alternatives to traditional ionic conductors.
  • Advancements in green energy storage and bioelectronic applications require efficient ionic conductors.

Purpose of the Study:

  • To engineer a self-assembling protein scaffold with enhanced ionic conductivity.
  • To improve proton transport, hydration, and ion diffusion through rational protein design.

Main Methods:

  • Engineered a repeat protein scaffold with selective glutamic acid incorporation.
  • Utilized self-assembly properties for macroscopic film formation.
  • Integrated engineered protein films into supercapacitor devices.

Main Results:

  • Engineered protein films exhibited an order of magnitude higher ionic conductivity than unmodified counterparts.
  • A further ten-fold enhancement in conductivity was achieved with controlled salt ion addition.
  • Supercapacitors with engineered protein films demonstrated competitive energy storage performance.

Conclusions:

  • Rational protein design can create efficient, biocompatible, and sustainable ionic conductors.
  • Engineered protein films possess the stability and processability for next-generation energy storage and bioelectronic devices.
  • The study highlights the potential of protein-based materials in advancing green energy and bioelectronics.