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Lithiumate Overview

General description of the professional distributed Li-Ion BMS

Ideally matched to work in high power Li-Ion battery packs

  • Up to 255 cells in series (~840 V), no limit to cells in parallel, isolated
  • No limit to cells in parallel, up to 600 A (higher currents available)
  • Includes contactor drivers, a cooling fan interface and an interlock input

Distributed: electronic assemblies are mounted on cells

  • Mechanically matched with cylindrical, pouch or prismatic cells
  • Minimal wiring (no "spaghetti"); individual cell voltage and temperature
  • Controller communicates with Cell Boards on cells, and with external system

Ideally matched to Li-Ion cells

  • Lithium-ion Polymer(LiPo)
  • Standard lithium-cobalt-oxide (LiCoO2)
  • Lithium-Manganese-Nickel-Cobalt (LiMnNiCo)
  • Nano-phosphate / lithium-iron-phosphate / lithium-ferro-phosphate (LiFePO4)
  • Lithium-manganese-oxide (LiMnO2)
  • Not compatible with lithium-titanate cells (Altair Nano)
  • Not compatible with lithium-sulfur cells (SIon Power)

Ideally matched to plug-in vehicles

  • Compatible with most chargers, motor drivers
  • CAN bus, ignition line input, 12V power

Performs monitoring, evaluation, communication, balancing and protection

  • Monitors the voltage and temperature of each set of parallel cells, and the pack current
  • Evaluates SOC (State Of Charge), DOD (Depth Of Discharge), and SOH (State Of Health)
  • Calculates the pack's internal resistance
  • Determines appropriate CCL (Charge Current Limit) and DCL (Discharge Current Limit)
  • Detects any abnormal conditions and sets a fault accordingly
  • Communicates through a serial port and through a CAN bus, reporting above data
  • Balances the charge through dissipation of excessive energy in most charged cells
  • Protects against over and under-voltage, over and under-temperature, over-current
  • Optional HV Front End tests for loss of isolation and end of precharge current (using a precharge resistor, not supplied)
Lithiumate cell boards on all cell formats
Cell boards on cells (t to b):
small cyl., prismatic, large cyl., pouch

Applications

Mobile:

  • Automotive: EV, HEV, PHEV
  • "Mules" and proof-of-concept products
  • Specialty vehicles
  • Marine
  • Aviation: EV
  • V2G and V2H

Land based:

  • Distributed energy
  • Peak shaving
  • Power back-up: UPS

Compatibility

The Lithiumate is compatible with:

  • Any Li-ion cell with nominal voltage of 3.2 V and above, including these cells.
  • Any charger through wire control, and some chargers through direct CAN bus control, including these chargers.
  • Any motor driver through wire control, and some motor drivers through direct CAN bus control, including these motor drivers.

 

 
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