Review of Best Practice Methods for Determining an Electrode Material's Performance for Ultracapacitors

By M. Stoller, Rodney S. Ruoff. 2010

2,126 citations recorded by the source corpus.

Ultracapacitors are rapidly being adopted for use for a wide range of electrical energy storage applications. While ultracapacitors are able to deliver high rates of charge and discharge, they are limited in the amount of energy stored. The capacity of ultracapacitors is largely determined by the electrode material and as a result, research to improve the performance of electrode materials has dramatically increased. While test methods for packaged ultracapacitors are well developed, it is often not feasible for the materials scientist to assemble full sized, packaged cells to test electrode materials. Methodology to reliably measure a material's performance for ultracapacitor electrode use is not well standardized with the different techniques currently being used yielding widely varying results. In this manuscript, we review the best practice test methods that accurately predict a materials performance, yet are flexible and quick enough to accommodate a wide range of material sample types and amounts.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/b7ce5864d59690ef4525aa4ea98fe001cbe1407e

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In Electrical and Electronic Engineering

In Electronic, Optical and Magnetic Materials

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Citations in the corpus

Activation of graphene aerogel with phosphoric acid for enhanced electrocapacitive performance (2015, background): “An extrapolation from the linear correlation between IR drop and current density yields an equivalent series resistance (ESR) [56], which is the sum of internal resistance including the electrical resistance of electrode materials and ion diffusion resistance within the electrode.”
Supercapacitors Performance Evaluation (2015, methodology): “For SCs, similar rate dependency has been long and widely recognized [48, 50, 51, 65, 69, 114, 142-145], yet poorly analyzed and understood.”