Testing Electrochemical Capacitors-Cyclic Voltammetry

17
Testing Current Purpose This appl electroch tested to current m Introdu Part 2 of describes In contra charge w immerse separate Compare 1. H 2. Lo 3. Lo 4. O 5. Lo These are 1. H 2. Lo 3. Lo 4. Po 5. H Some ap provides State of t 1. H Electroch t e of This N lication note hemical capa o explain and measuremen uction this note di s theory and ast to batteri while batterie d in a condu d by an ionic ed to a batte igher charge onger cyclelif ow toxicity m Operation ove ow cost per c e offset by s igher selfdis ower energy ower cell volt oor voltage re igh initial cos plications us better cycle the art appli ybrid Electric emical Cap Note e is the first p acitors (ECs) d discuss the nt. scusses tech d practice of ies, ECs gene es use chem uctive liquid cconducting ery, an electr and discharg fe (> 100,000 materials r a wide tem ycle some disadva charge rate density tage egulation st se electroch e life and hig cations for e c Vehicles (HE pacitors: P part of an ov . Commerci e theoretical hniques that EIS measure erally store e mical reaction or polymer g separator rochemical c ge rates giving cycles) perature rang antages: emical capa gher power t electrochem EVs) Part 1 – Cyc verview of e ially availabl background t are also fam ements on c energy by hi ns. ECs cons called the e that preven capacitor ha g it a high pow ge citors in par than a batte mical capacito clic Voltam electrochem le electroche d of cyclic vo miliar to batt capacitors. ighly reversi sist of two hi lectrolyte. T ts shorts be s the follow wer density rallel with a ry alone. ors include: mmetry an ical techniqu emical capac oltammetry tery technol ble separati ighsurface e The electrod tween the tw ing advanta battery. Thi nd Leakage ues used to t citors were and leakage logists. Part on of electr electrodes des are wo electrod ges: is combinati e test e t 3 ical es. ion

description

This application note is the first part of an overview of electrochemical techniques used to test electrochemical capacitors (ECs). Commercially available electrochemical capacitors were tested to explain and discuss the theoretical background of cyclic voltammetry and leakage current measurement.

Transcript of Testing Electrochemical Capacitors-Cyclic Voltammetry

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