ECC-Opto-10

Test cell for optical characterization in the reflective mode.

The ECC-Opto-10 test cell is an advanced next generation battery test cell. It is designed for operando characterization of electrodes using light microscopy, Raman spectroscopy or XRD in reflection mode.

A newly developed sealing concept utilizing laser-welded glass-to-metal electrode feedthroughs and foil seals substantially increases cycle stability compared to the previous generation. The much more compact and low profile design allows use under a wide range of microscopes. We further optimized the cell design for easy assembly. Dedicated sample holders for side-by-side and face-to-face arrangements of electrodes vastly improve the handling.

The ECC-Opto-10 is connected to the battery tester via 2 mm cell cable with banana plugs. It can be used with the PAT-Tester-x-8 as well as potentiostats and battery testers from third-party manufacturers.

ECC-Opto-Std overview

Features

High cycling stability due to improved sealing concept

Dedicated sample holders for side-by-side and face-to-face electrode arrangements available

Fast assembly and dismantling and easy cleaning of cell components

Electrodes are easily accessible for post-mortem analysis

Low cell height of 21.5 mm for trouble-free use under many light microscopes

Fits well on standard microscope sample stages (76 × 26 mm (DIN ISO 8037-1))

Specifications
Manual
ECC-Opto-10 User Manual
Release 1.25
Date September 2023
Type PDF
Size 2.3 MB
Download
Delivery scope
Item nameOrder no.
ECC-Opto-10 test cell
Window seal (10 pcs.)ECC1-05-0016-B/X
PE Sealing foil (10 pcs.)ECC1-05-0032-A/X
Separator 10.0 mm x 0.26 mm, GF/A (10 pcs.) ECC1-01-0012-R/X
Torque screwdriver, 0.2 Nm, cross handleWZG9021
Inbus bit 1.5 mm x 1/4 inchWZG9046
Hexagon screwdriver 2.5 mm, cross handleWZG9047
Loading tweezerECC1-09-2010-B
Contact ring (face to face)ECC1-05-0039-C
Contact disc 1.4404 (100x)ECC1-05-0042-A
Contact disc 1.4404 (200x)ECC1-05-0042-B
Contact disc 1.4404 (50x)ECC1-05-0042-C
Sample holder side-by-sideECC1-05-0040-B
Spare parts

Spare parts

Test cell

Lid assembly

Accessories

Lid unit (OPTO-10) 18 mm Sapphire (22×0.3 mm)

Item nameData
Lid opening18 mm
Supported window size22 x 0.3 +/- 0.1 mm
Contentpreassembled lid unit with sapphire window
Order no.ECC1-05-0010-B
PurposeSuitable for stable window materials such as sapphire glass

Lid unit (OPTO-10) 10 mm Borosilicate (22×0.3 mm)

Item nameData
Lid opening10 mm
Supported window size22 x 0.3 +/- 0.1 mm
Contentpreassembled lid unit with borosilicate window
Order no.ECC1-05-0010-C
PurposeSuitable for less stable window materials like borosilicate

Lid unit (OPTO-10) 10×12 mm Beryllium (22×0.2 mm), theta > 5°

Item nameData
Lid opening10 x 12 mm
Supported window size22 x 0.2 +/- 0.1 mm
Contentpreassembled lid unit with beryllium window
Order no.ECC1-05-0010-H
Notetheta > 5°, Inspection area (theta > 5°) = 1 mm

Lid unit (OPTO-10) 18 mm (22×0.25 mm with slit mask)

Item nameData
Lid opening18 mm
Supported window size22 x 0.25 +/- 0.1 mm
Contentlid unit without window
Order no.ECC1-05-0010-G
NoteSuitable for unstable window materials such as PET. The opening size and shape of the slit mask can be changed upon customer request.

Dedicated sample holders

Improve your workflow and save time with our sample holders for side-by-side and face-to face arrangements of electrodes. Both variants are included with each PAT-Cell-Opto-10 or ECC-Opto-10!

Sample holder (side-by-side)

Cycling of graphite vs Li in a side-by-side arrangementCycling of graphite vs Li in a side-by-side arrangement

Sample holder (face-to-face)

Contact discs with 1, 2, and 4 mm opening are available and included with each test cell.

Cycling of graphite vs Li in face-to-face arrangementCycling of graphite vs Li in face-to-face arrangement

Video

Assembly procedures for side-by-side electrode setup (07/2022)

In this updated video, Dr. Matthias Hahn shows the required steps for assembling the test cell in the side-by-side electrode setup inside the glove box.

ResolutionDateTypeSize
EL-CELL ECC-Opto-10 Assembly with Side-by-Side Sample Holder (07/2022)1920x1080px07/2022mov231 MBDownload

Assembly procedures for face-to-face electrode setup (10/2021)

Learn how to assemble the ECC-Opto-10 optical battery test cell in face-to-face electrode setup.

ResolutionDateTypeSize
ECC-Opto-10: Assembly procedures for face-to-face electrode setup (10/2021)1920x1080px10/2021mov270 MBDownload

Sample test results

The picture shows two lithium metal electrodes – 20 µm lithium foil laminated on copper foil – beneath the sapphire window of the test cell. The electrodes are embedded into a glass fiber separator soaked with electrolyte. Applying a current of 20 µA for 5 hours makes the lithium to dissolve from the supporting copper foil (right electrode) and to plate as dendrites on the opposite side (left electrode).

The picture shows two graphite electrodes embedded in a glass fiber separator soaked with electrolyte. The graphite electrode on the left is being lithiated from the lithium metal electrode below the separator. From the color change, one can infer the lithiation gradient within the graphite electrode. The right graphite electrode can be used in a follow-up experiment to send lithium ions back and forth between the two graphite strips.

Gallery

Recommended tools

EL-Cut

High Precision Cutting Tool eliminates torn and chipped electrode edges. The recommended size for use with the ECC-Opto-Std is 10 mm.

Product details

ECC-LiPunch

Punching tool for lithium foil. The recommended size for use with the PAT-Cell-Opto-10 is 10 mm.

Product details

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