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Aug 01
Testing with Mesh-type Reference Electrodes

Testing with Mesh-type Reference Electrodes

Testing of Battery Materials with Mesh-type Reference Electrodes A long time ago, we advertised to use a finger-type (aka wire-type) reference electrode. Everything we wrote still holds. However, the bad news is that the finger-type reference electrode is no longer available. The good news is that we now have an... read more →
  • 1. August 2024
Jul 05
Comparing Seal Materials for PAT Battery Test Cells

Comparing Seal Materials: When should I use which?

  Comparing Seal Materials: When should I use aluminum or PE seals? The battery test cells in the PAT series are characterized by their high impermeability to the outside atmosphere. This increases the long-term stability of the cell chemistry and enables long-term measurements over several thousand hours. (See example here.)... read more →
  • 5. July 2024
Oct 20

Reliability meets accuracy: Testing with PAT-Cell and PAT-Tester-i-16

  Reliability meets Accuracy: Testing with PAT-Cell and PAT-Tester-i-16. We want to show the results of our last long-term measurement (2000 hours) with the PAT-Cell. The PAT-Cell is our reliable and well-proven workhorse for efficient three-electrode measurements in the field of battery material research. In this measurement,  five PAT-Cells were... read more →
  • 20. October 2022
Apr 16

A Battery is a Can with two Terminals named Plus and Minus

  Testing materials for lithium-ion batteries A battery is a can with two terminals named plus and minus, or 1 and 2. Testing this battery means that you apply either a voltage (V12) profile or a current (i12) profile across the two terminals, and measure the corresponding current or voltage... read more →
  • 16. April 2021
Sep 11

Printed electrodes can now be tested in the PAT-Cell

What is a printed electrode? A printed electrode can be fabricated using techniques such as screen printing or inkjet printing which offer the advantage to produce structured electrodes. The electrode layers are printed onto a suitable substrate. These substrates can be divided into two categories: (i) insulating substrates such as... read more →
  • 11. September 2020
Sep 04

Application Note: Graphite against Lithium – A poor Battery

In our last application note we took a closer look at the cathode "half-cell" of the lithium-ion battery, which in our case was NCM against lithium metal. It turned out, that the lithium metal electrode is under some conditions the bottleneck of charge transfer, especially at the vertex points of... read more →
  • 4. September 2020
Jun 04

Application Note: NCM against Lithium – Too much Lithium?

New cathode and anode materials for lithium ion batteries (LiB) are often tested for their electrochemical performance using lithium metal as the counter electrode. In laboratory language, these configurations are sometimes called “half-cells”. In most cases no reference electrode is used for such half-cells because the electrode potential of the... read more →
  • 4. June 2020
May 04

Application Note: Nothing but Lithium

This application note is supposed to be the first in a series dealing with the electrochemical testing of materials for lithium-ion batteries (LiB) using the PAT system from EL-CELL. More precisely, we will show you the advantages of the PAT-Cell (compared to other test cells like button, Swagelok and pouch... read more →
  • 4. May 2020
Feb 24

Testing with a finger-shaped reference electrode and EL-Software

Sometimes a finger-shaped reference electrode can be better than our standard ring-shaped reference electrode. The finger reference measures the electrical potential in the middle of the stack instead of at the outer edge of the cell stack. This can help to minimize artifacts caused by inhomogeneities of the electric field.... read more →
  • 24. February 2020
Mar 05

AC or DC? We can both!

Very often, Li-ion test cells are characterized in two separate experiments: first, constant current charge/discharge cycles are applied in order to learn about the direct current (dc) behavior of the battery, and, second, impedance tests are performed in order to learn about the alternating current (ac) behavior at different states... read more →
  • 5. March 2019
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