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Comparison tables

Separator types

See the abilities and specs of our common PAT-Core separator types


Separator	FS-5P (Freudenberg Viledon FS 2226E + Lydall Solupor 5P09B)	Freudenberg Viledon FS 3005-25	Whatman GF/A
Thickness	220µm	25µm	260µm
Material	PP fiber/PE membrane	PET fiber, Al₂O₃	Borosilicate glass fiber
Porosity	FS: 67%/ 5P: 86%	55%	91%
Wettability	Good	Good	Excellent
Resistance to dendrites	Good	Poor	Modest
Ability for full cell cycle tests	Excellent	Good	Good
Ability for half cell cycle tests (vs. Li)	Excellent	Poor	Modest
Ability for full cell EIS	Excellent	Excellent	Excellent
Ability for half cell EIS	Modest	Poor	Good
Order no (sleeve with Li reference)	ECC1-00-0210-V/X	ECC1-00-0210-A/X	ECC1-00-0210-O/X

Test cell comparison

	Purpose/testing
Test cells	2-electrode	3-electrode	optical	Raman	X-ray	dilatometry	pressure	gas analysis
PAT-Cell	yes	yes	no	no	no	no	no	no
PAT-Cell-Press	yes	yes	no	no	no	no	yes	yes
PAT-Cell-Gas	yes	yes	no	no	no	no	yes	yes
PAT-Cell-HT	yes	yes	no	no	no	no	no	no
ECC-Air	yes	yes	no	no	no	no	no	yes
ECC-Air-Ni	yes	yes	no	no	no	no	no	yes
ECC-DEMS	yes	yes	no	no	no	no	no	yes
ECC-Opto-Std	yes	yes	yes	yes	yes	no	no	no
ECC-Opto-Std-Aqu	yes	yes	yes	yes	yes	no	no	no
ECC-Opto-Gas	yes	yes	yes	yes	no	no	no	yes
ECC-Std	yes	no	no	no	no	no	no	no
ECC-Ref	yes	yes	no	no	no	no	no	no
ECC-Aqu	yes	yes	no	no	no	no	no	no
ECD-3	yes	yes	no	no	no	yes	no	no
ECD-3-nano	yes	yes	no	no	no	yes	no	no

Tool list

What is the right tool for your test cell?


Test cells	ECC-Refload	ECC-LiPunch	EL-Cut (+ StopRail)
All PAT series test cells	-
ECC-Air, ECC-Air-Ni
ECC-DEMS
ECC-Press-Air-DL
ECC-Opto-Std		(diameter = 10 mm)	(diameter = 10 mm)
ECC-Opto-Std-Aqu		-	(diameter = 10 mm)
ECC-Opto-SBS		-	(9.5 mm x 9.5 mm)
ECD-3, ECD-3-nano	-	(diameter = 12 mm)	(diameter = 10 mm)

= Recommended; standard diameter is 18 mm unless otherwise indicated

What are the differences between PAT-Cell-Press and PAT-Cell Gas?

	PAT-Cell-Press	PAT-Cell-Gas (P, S, SP)
Cell is dedicated to:	The quantitative (cumulative) measurement of the gas evolved / consumed during the electrochemical cycle by measurement of the gas pressure	Time resolved analysis of the gas evolved / consumed during the electrochemical cycle in combination with a mass spectrometer and controlled gas supply
Preferred operation mode:	Pressurized cell without gas flow	Flow-through with gas analysis at outlet and mass flow controller at the inlet
Plug flow:	not available	Almost perfect when using the lower plunger with flow field; significant back-mixing when using the lower plunger with perforated plate
Applicable to:	• Aprotic chemistries such as Li-ion, Li-air, super cap • Some aqueous chemistries may work, but compatibility must be checked by the user	• Aprotic chemistries such as Li-ion, Li-air, super cap • Some aqueous chemistries may work, but compatibility must be checked by the user
Upper electrode:	Any compatible electrode, either self-standing or with metal foil current collector; standard upper plunger or perforated upper plunger	Any compatible electrode; often Li metal or LFP are used here as a Li ion source; preferably there is no gas evolution or consumption at this electrode
Lower electrode:	Any compatible electrode, either self-standing or with metal foil current collector; standard lower plunger or perforated lower plunger	The lower electrode is seated on a plunger with flow field and must therefore be gas permeable, either self-standing or on current collector mesh. The gas evolution / consumption at the lower electrode is subject of the measurement.

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