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User Manual
ECD-3-nano
Release 1.52
12 Using the Reference Electrode
The reference electrode assembly is basically comprised of a metal pin with a blind bore at the
end pointing to the glass frit. The user needs to fill the blind bore with the reference material
before attaching the reference assembly to the cell body. For most aprotic lithium chemistries,
lithium metal is a proper reference material. For aprotic supercap electrolytes, PTFE bound
activated carbon may serve as a (pseudo) reference material.
To make sure that, in the assembled state, the reference material is actually pressed against
the glass frit of the cell stack, it is advised to push onto the back of the reference pin while
screwing in the pin.
NOTES
:
•
Avoid any direct contact of the PTFE ferrule with lithium metal. PTFE is being reduced
to (black and porous) carbon when getting in contact with lithium.
•
The standard dilatometer comes with a stainless steel reference pin, which is good for
use with lithium metal. In contrast, the gold reference pin, which is part of the optional
aqueous kit, must not be used with lithium metal. Gold and lithium spontaneously
alloy when getting into contact with each other.
Components of the reference electrode:
Ferrule 1.5
(short top part)
ECC1-00-0029-H
Fitting long II
(with cone)
ECC1-00-0039-N
Ref pin ECD, long (1.4404)
ECD1-00-0050-A
Compression spring
(1.4310/ Au)
FED9017
Reference connection tip
ECC1-00-0331-A
Hollow screw ECD-3
ECC1-00-0040-A
