Page 6 of 12
User Manual
ECC-Std
Release 3.81
2 ECC-Std assembly
The ECC-Std electrochemical cell may be assembled either with thick glass fiber or with thin
technical separator (such as Celgard 2325). Hereafter the two modes are referred to as AAA
mode (with the glass fiber separator and and the two adjacent electrodes having the same 18
mm diameter) or ABA mode (with the separator being oversized compared to the two adjacent
electrodes).
When using air sensitive electrodes like metallic lithium, the cell is being assembled and filled
with electrolyte inside a glove box. Prior to assembly, all cell components are to be dried
overnight in vacuum at 120 °C.
To minimize parasitic currents, the upper electrode (in contact with the piston) should be at
more positive potentials than the lower electrode (in contact with the cell base). We hereafter
refer to the upper electrode as cathode, and to the lower electrode as anode.
Bracket
Cutting rings plus PE
seal ensure ultra-low
leakage
PEEK sleeve ensures
electrode concentricity
and homogeneous
current distribution
Stainless steel 316L
base with 2mm
banana jacks
Gold plated spring
applies reproducible
mechanical load on
cell stack (10 … 50 N)
Stainless steel 316L
plunger for corrosion
resistance in aprotic
media
PTFE plug
assembly
Cell stack