A Fully Integrated Experimental Platform for Benchmarking New Flow Battery Active Materials

Source: AIChE
  • Checkout

    Checkout

    Do you already own this?

    Pricing


    Individuals

    AIChE Member Credits 0.5
    AIChE Members $19.00
    AIChE Graduate Student Members Free
    AIChE Undergraduate Student Members Free
    Non-Members $29.00
  • Type:
    Conference Presentation
  • Conference Type:
    AIChE Annual Meeting
  • Presentation Date:
    November 11, 2021
  • Duration:
    15 minutes
  • Skill Level:
    Intermediate
  • PDHs:
    0.50

Share This Post:

Redox flow batteries (RFBs) have the potential to be low-cost solutions for grid-scale energy storage needs. The DOE recommends that RFBs should approach cost targets of $100/kWh to enable widespread deployment, and it will be challenging to meet this target with current-generation active materials like vanadium [1]. Technoeconomic models have shown that decreasing electrolyte cost and increasing battery voltage will both be crucial for improving cost performance in functional RFB modules [2]. These opportunities lend well to leveraging molecular and materials design strategies for new RFB electrolytes, but the field still lacks a standard set of tools and techniques (analogous to coin-cell testing in the Li-ion battery field) to support rapid, credible comparisons across newly developed electrolyte materials.

This presentation will describe our work to develop a fully integrated, small-volume electrochemical flow platform that measures the thermodynamic, kinetic, and transport properties of RFB electrolytes, spanning inorganic and organic materials as well as soluble and suspended solids. Using a first-generation prototype, we have validated prior work on the sensitivity of the Fe(3+/2+) redox couple to the surface composition of carbon electrodes. We will also discuss ongoing work to further develop the flow platform for studying the redox properties of metal oxide nanomaterials under flow.

[1] Paul Spitsen. Energy Storage Grand Challenge Roadmap. Technical report, 2020.

[2] Robert M. Darling, Kevin G. Gallagher, Jeffrey A. Kowalski, Seungbum Ha, and Fikile R. Brushett.Pathways to low-cost electrochemical energy storage: A comparison of aqueous and nonaqueous flow batteries.Energy and Environmental Science, 7(11):3459–3477, 11 2014.

Presenter(s): 
Once the content has been viewed and you have attested to it, you will be able to download and print a certificate for PDH credits. If you have already viewed this content, please click here to login.

Checkout

Checkout

Do you already own this?

Pricing


Individuals

AIChE Member Credits 0.5
AIChE Members $19.00
AIChE Graduate Student Members Free
AIChE Undergraduate Student Members Free
Non-Members $29.00
Language: