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Electrochemically and Bioelectrochemically Induced Ammonium Recovery

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Bioelectrochemical Systems: Prioritizing Energy Density, Long-Term Stability, and Validation.

Luana C I Faria¹, Steffane Q Nascimento¹, Filipe C D A Lima²

¹São Carlos Institute of Chemistry, University of São Paulo, 13560-590 São Carlos, SP, Brazil.

ACS Energy Letters

|September 19, 2025

Summary

Bioelectrochemical systems (BES) offer sustainable energy solutions using biological components. This study introduces a new Ragone plot for BES, addressing challenges and comparing them to traditional energy technologies.

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Area of Science:

Bioelectrochemistry
Sustainable Energy Technologies

Background:

Early bioelectrochemistry research, particularly using yeast cells, advanced understanding of bioelectrochemical reactions.
This led to the development of bioelectrochemical systems (BES) for sustainable energy applications.

Purpose of the Study:

To introduce a novel Ragone plot tailored for BES.
To identify strategies for overcoming key challenges in BES development.
To compare the performance of BES with conventional energy storage and conversion technologies.

Main Methods:

Development of a new Ragone plot specific to BES.
Comparative analysis of BES against traditional energy technologies.
Identification of pathways to enhance BES performance and stability.

Main Results:

A new Ragone plot for evaluating BES performance is presented.
Key challenges hindering BES competitiveness in energy density and stability are highlighted.
Comparative data positions BES relative to established energy solutions.

Conclusions:

BES hold significant promise for environmentally friendly energy storage and conversion.
Addressing challenges in energy density and long-term stability is crucial for widespread adoption.
A future roadmap is proposed to guide the advancement of BES technology.