EL-CELL PAT-Core User Manual

Insulation sleeve with built-in separator and optional reference electrode and current collectors

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User Manual
Release 1.33
PAT-Core
Insulation sleeve with built-in separator and optional reference electrode
and current collectors
© 2024 EL-Cell GmbH

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Summary of Contents for EL-CELL PAT-Core

  • Page 1 User Manual Release 1.33 PAT-Core Insulation sleeve with built-in separator and optional reference electrode and current collectors © 2024 EL-Cell GmbH...
  • Page 2 PAT-Core Disclaimer EL-Cell GmbH makes no assurances or warranties with respect to this manual and, to the extent permitted by law, limits its liability for violation of any implied warranty to the substitution of this manual for another. In addition, EL-Cell GmbH reserves the right to revise this publication at any time without anyone's notice.
  • Page 3 User Manual PAT-Core Manufacturer and customer service EL-Cell GmbH Tempowerkring 8 21079 Hamburg – Germany Telephone: +49 40 79012-734 Telefax: +49 40 79012-736 Email: info@el-cell.com Website: el-cell.com Technical support Telephone: +49 40 79012-734 Email: support@el-cell.com Website: el-cell.com/support/technical-support/ Please always quote the serial number on the nameplate when contacting customer service.
  • Page 4: Table Of Contents

    User Manual PAT-Core Content 1 Product Description ............................5 2 PAT-Core Components ..........................5 3 Unpacking................................ 8 4 Pre-use Treatment ............................8 5 Assembly Instructions ..........................8 6 Disassembly and Cleaning ........................16 7 Common Test Cases ........................... 17 8 Separator Features ............................21 9 PAT Components Overview ........................
  • Page 5: Product Description

    PAT-Core 1 Product Description The PAT-Core is an essential part of the PAT-Cell, holding in place and precisely aligning the electrodes under test. Its well-defined geometry enables high-quality two—and three- electrode tests of Li-ion and other battery materials, as well as supercapacitors.
  • Page 6 User Manual PAT-Core 2.1 Upper Plunger By default, the upper plunger serves as the negative current collector. The given size fits any thickness of the upper electrode up to 800 µm. The plungers are available in Stainless Steel (ss), Al, and Cu and as a special version made of PEEK polymer. The PEEK plungers are used in combination with a disc-shaped metal foil as the current collector.
  • Page 7 Available height numbers range between 50 and 800 in steps of 50 µm. The proper plunger height must be chosen to ensure that the pre -assembled separator is not excessively bent during the assembly of the PAT-Core. Good case: No bending of built-in separator;...
  • Page 8: Unpacking

    200. 3 Unpacking By default, all parts of the PAT-Core can be unpacked in the ambient atmosphere before moving inside the glove box. Only the insulation sleeves (PP) must be moved inside vacuum - packed (pouch bag). Please note that some types of insulation sleeves are additionally packed in a can, which is optionally filled with pellets.
  • Page 9 User Manual PAT-Core 5.1 Safety Precautions Use proper safety precautions when using hazardous electrode materials and electrolytes. Wear protective glasses and gloves to protect you against electrolytes that may accidentally spill out during disassembly. Upon cell disassembly, dispose of all materials properly. Metallic lithium and some insertion compounds may decompose heavily in contact with water and other solvents and can cause fire.
  • Page 10 User Manual PAT-Core 2. Insert the upper disc spring. Make sure the three tabs of the disc spring are properly snapped in. Lower PEEK plunger assembly 1. Insert the lower feed wire into the hole of the lower plunger. Note the correct orientation.
  • Page 11 User Manual PAT-Core Upper PEEK plunger disassembly 1. Lever out the three tabs of the disc spring and remove the disc spring. 2. Remove the upper feed wire. Lower PEEK plunger disassembly 1. Turn the disc spring counter-clockwise by 45 degrees and lift it out.
  • Page 12 User Manual PAT-Core 2. Remove the lower feed wire. 5.3 PEEK Insulation Sleeve Assembly The following steps describe the assembly of the PEEK insulation sleeves. Note: For use with aprotic electrolytes, the stick rings and separator must be properly dried upfront, and the sleeve must be assembled inside a glove box.
  • Page 13 User Manual PAT-Core 1. Insert the reed contact into the outer stick ring 2. Insert the Reference ring on top of the assembly. 3. Insert the separator with diameter 21.6 mm. Page 13 of 25 Release 1.33...
  • Page 14 User Manual PAT-Core 4. Put the inner stick ring on top and press it down. Check the proper position of the contact tongue. Page 14 of 25 Release 1.33...
  • Page 15 User Manual PAT-Core 5.4 Standard Assembly in a PAT-Cell 1. Put the insulation sleeve (6) onto the worktop with the smaller side pointing upwards. 2. Insert the lower electrode (7) into the sleeve with the active layer facing downwards. 3. Attach the lower plunger (8). The lower plunger is available in different gap sizes in order to account for the thickness of the lower electrode and the separator used.
  • Page 16: Disassembly And Cleaning

    User Manual PAT-Core 6 Disassembly and Cleaning After disassembly, dispose of all single-use components and electrodes properly. Stainless steel plungers can be cleaned with water, acetone, or ethanol. If necessary, persistent stains can be removed from the plungers with aqueous nitric acid (20%, 2 hours at room temperature).
  • Page 17: Common Test Cases

    User Manual PAT-Core 7 Common Test Cases These tables show recommended PAT-Core components for the most common testing scenarios and can be used as a guide for building PAT-Cell test cells. 7.1 Testing with aprotic LiPF based electrolytes Lower electrode LCO/NCM/LFP/..
  • Page 18 User Manual PAT-Core 7.2 Testing with Aprotic Supercap Electrolytes Lower electrode (+) Activated Carbon (AC) Upper electrode (-) Lower plunger SS or Al Upper plunger SS or Al Reference Activated carbon on stainless steel Separator FS-5P T/°C <70°C Lid seal...
  • Page 19 User Manual PAT-Core 7.3 Testing with Aqueous Supercap Electrolytes Lower electrode (+) Upper electrode (-) Lower plunger PEEK Upper plunger PEEK Current collector disc Reference GF/A Separator ECC1-01-0011-A/L T/°C <70°C Lid seal Plain Insulation sleeve PEEK, disassembled Sleeve (reusable) ECC1-00-0510-T...
  • Page 20 User Manual PAT-Core 7.4 Testing with Aprotic High-Temperature Electrolytes Lower electrode (+) LCO/NCM/LFP.. Upper electrode (-) Graphite/LTO Lower plunger SS or Al Upper plunger SS or Cu Reference Li metal GF/A Separator ECC1-01-0011-A/L T/°C <200°C Lid seal PEEK or PTFE...
  • Page 21: Separator Features

    User Manual PAT-Core 8 Separator Features FS-5P (Freudenberg Viledon FS Freudenberg Viledon FS Separator Whatman GF/A 2226E+Lydall Solupor 5P09B) 3005-25 Thickness 220µm 25µm 260µm Material PP fiber/PE membrane PET fiber/Al Borosilicate glass fiber Porosity FS: 67%/ 5P: 86% Wettability Good...
  • Page 22: Pat Components Overview

    User Manual PAT-Core 9 PAT Components Overview The listed items are only an excerpt of the available product range. Please visit el-cell.com more information. 9.1 Upper Plunger Article Name Material Usage Order number Upper plunger, Cu Copper (Cu >99.9%, E-CU 58)
  • Page 23 User Manual PAT-Core 9.3 Current Collector Discs These discs are for use with PEEK plungers. Other materials are available on request. Article Name Material Usage Order number Current collector 18 mm, Au (5 pcs) Gold (Au>99%) Reusable ECC1-00-0069-A/V Current collector 18 mm, Ti (5 pcs) Titanium (Ti >99%, grade 2)
  • Page 24 User Manual PAT-Core 9.6 Insulation Sleeves Separator Article Name Reference material Separator material Order number thickness Insulation sleeve PP (Li-Reference, Li metal PET fiber/Al 25 µm ECC1-00-0210-A/X Separator FS 3005-25) (10 pcs) Insulation sleeve PP (Separator FS PET fiber/Al 25 µm...
  • Page 25: Warranty

    PAT-Core 10 Warranty For a period of one year from the date of shipment, EL-Cell GmbH (hereinafter Seller) warrants the goods to be free from defect in material and workmanship to the original purchaser. During the warranty period, Seller agrees to repair or replace defective and/or nonconforming goods or parts without charge for material or labor, or, at the Seller’s option, demand return...

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