3.3. Cell Interface
The Nuvation Energy Cell Interface is the direct link between the individual battery stack cells and the
rest of the battery management system. It facilitates battery monitoring and balancing
functionalities.
In a stack managed by the Stack Switchgear, one or more Cell Interface modules are used to convert
and relay cell voltage and temperature measurements digitally to the Stack Switchgear. When using
multiple Cell Interface modules, the same Cell Interface variant must be used—i.e. all NUV100-CI-12-
1, or all NUV100-CI-16-1, or all NUV100-CI-4M12-1. The firmware does not support a mixed chain of
different Cell Interface variants.
The following are variants of the Nuvation Energy Cell Interface:
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The NUV100-CI-12-1, Cell Interface - 12 channel can monitor up to 12 series-connected cells
▪
The NUV100-CI-16-1, Cell Interface - 16 channel can monitor up to 16 series-connected cells
▪
The NUV100-CI-4M12-1, Cell Interface - 12V 4 channel can monitor up to 4 series-connected 12V
lead-acid cells. Note that cell balancing is not supported in Cell Interface - 12V 4 channel.
Figure 5. Nuvation Energy Cell Interface Module
The external interfaces to this module are:
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Battery cells connector
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Temperature sensors connector
▪
2 Link Bus connectors
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2 Indicator LEDs
The Cell Interface connects to the battery stack-referenced signals through high
voltage rated connectors. Safety precautions are required to handle and connect
cables into this module.
Nuvation Energy High-Voltage BMS - Product Manual
Document ID: NE-PM-003
10
Rev 1.2, 2021-03-03
Curie Update 1
