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Battery Research

Battery Testing Electrochemistry Application Notes

Electrochemical Techniques for
Energy-storage Devices

Knowing the exact specifications when testing batteries.

Complete List of Battery Research Application Notes »

Testing Electrochemical Capacitors Part 1: CV, EIS, and Leakage Current

Posted by gamry on August 20, 2018

Super-capacitors are energy storage devices similar to secondary batteries. Unlike batteries, which use chemical reactions to store energy, super-capacitors generally store energy through the physical separation of electrical charges.

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Testing Electrochemical Capacitors: Part 2 — Cyclic Charge Discharge and Stacks

Posted by gamry on August 2, 2018

This application note is Part of 2 describing electrochemical techniques for energy-storage devices. It explains Gamry’s PWR800 measurement software and describes techniques to investigate electrochemical capacitors. This application note can also be extended to testing batteries.

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Testing Electrochemical Capacitors: Part 3 – Electrochemical Impedance Spectroscopy

Posted by gamry on August 1, 2018

This note discusses basics of Electrochemical Impedance Spectroscopy (EIS) and introduces Gamry’s EIS techniques by measurements on single electrochemical capacitors (ECs) and stacks.

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Introduction to Non-standard Charge-discharge Cycle Tests: Custom Current Profiles

Posted by gamry on November 17, 2017


Batteries in electric vehicles discharge during acceleration and while maintaining vehicular speed. They are recharged during braking. Driving cycles can therefore reflect significant variations in battery discharging and charging events such that observation of ampere-level current swings may be possible. For example, The US Advanced Battery Consortium (USABC) adapted the Federal Urban Driving Schedule (FUDS) cycle test to electric vehicles and presented it as percent of peak discharge power with time as shown in Figure 1. Negative percentage values refer to a state of discharging whereas positive values refer to a state of charging.

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High-current Pulses for Battery Research

Posted by gamry on July 14, 2017

For those interested in determining the characteristics of batteries, especially by discharging them to see their changes in impedance, Gamry Instruments offers the Reference™ 3000 potentiostat plus our 30k Booster.

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Testing Lithium-ion Batteries

Posted by gamry on January 19, 2015

This application note discusses electrochemical measurements on lithium-ion batteries. Theory and general setup of lithium ion batteries are explained. Important parameters for characterizing batteries are described.

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Measuring Batteries using the Right Setup

Posted by gamry on May 27, 2014

Knowing the exact specifications when testing batteries or any other energy-storage device is crucial. Many parameters affect the capability of a battery, e.g., electrolyte, electrode materials, and temperature.

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