Lithium Cell Formation System
-Charge CC to a Voltage limit, then
CV to a Current limit
-This is achieved in a single step
with a smooth transition from CC to CV under
control, without any switching
-Discharge CC and other
-End of Charge based on Time, Voltage, Current,
or Amp-Hour, Watt-Hour, 1 /2
Amp-Hour, 1 /2 Cycle Watt-Hour
-End of Discharge based
on the same conditions as Charge
System Features include:
Each cell progresses individually
through all steps of the formation program
stopping, independent of the status of the other cells.
Full Data Collection Capability
The system can be programmed to record
data on every cell as fast as every one
minute or multiple thereof. It records, Voltage, Current, Time,
Energy (Wh), Cycle, Step No.
and Channel Status. With a data server PC, this
can be automatically backed up, processed, reports printed, and
the data can be exported to a
Local Area Network.
Increased Number of Test Steps
Each formation program can be
up to 127 steps of charge, discharge, rest etc.
Individual Cell Control and Measurement
The current to each cell is individually controlled.
Relay contacts ensure that current
truly disconnected from the cell at the end of the formation,
or if there is a
with the cell. The voltage and current of each cell is measured
a data file is created for each cell, and for each cell tray location.
Cells can be graded by capacity (Ah). Any number of
grade profiles can
be programmed and stored, with
an unlimited number of grades in each profile.
can be printed out after the formation is complete, or in conjunction
a RAM memory chip (supplied as an option)
can be used for automatic sorting of
in a separate machine.
Maximum Current Flexibility
The standard maximum current for this
system is 2.5 Amps per cell. By
channels in software, this can be increased to 5 A or even 10 A
number of cell positions is decreased
The PC computer stores the system status on power failure.
When power is
restored, the system status
can be uploaded to the formation system, and
continued from where it was suspended. This greatly simplifies the
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