Unico Battery Cell Formation

BAT350 CELL FORMATION

High Power Battery Cell Formation Channels

BAT350 SERIES OVERVIEW

High Current Rapid Formation System
UNICO’s high current cell formation channels are a cost-effective way to achieve the necessary currents for rapid formation in a package that is ready for integration into a cell manufacturing line. The fully regenerative channels provide clean and efficient power
for charging and recover energy during discharging. Pulse formation charging can also be achieved due to the FPGA-controlled SiC power stages with, full current pulses as short as 1ms.

NEXT GEN CELL FORMATION

Document

Performance

Reliablity

Efficiency

Flexibility

Value

Compact

BENEFITS

FLEXIBLE OUTPUT AND CONTROL

Flexible, Isolated DC Outputs

• 4-Channel, 0-5VDC at the Cell
• Built-in charge and discharge profile storage
• ±100A or ±300A per channel

FLEXIBLE POWER INPUT

Common AC or DC Bus

• 400-850VDC
• 380-480VAC (future)

EXTREME EFFICIENCY

Significant Energy Savings for Formation

• Better than 95% efficiency
• Fully bi-directional for energy efficient formation

ULTRA COMPACT PERFORMANCE

Flexible Integration into Formation Lines

• Up to 12kW/L power density
• High performance, interleaved SIC power stages for low output ripple
• Air or water cooled with same design

CELL FORMATION WITH IDAC - BAT350 SERIES

The BAT350 Series of IDAC cell formation based on UNICO IDAC technology brings a new level of performance, compactness, flexibility, and value to the formation market. The universal power board can be either air or water cooled and utilizes high-performance SiC technology switching up to 1MHz, utilizing FPGA control. Four-channel versions will be available at launch utilizing a simple REST API control architecture for running formation processes which are stored in the device

FLEXIBLE COOLING METHODS

BAT350 CORE TECHNOLOGY - UNICO IDAC

ULTRA COMPACT AND EFFICIENT POWER CONVERSION

The BAT350 has an incredibly small size that allows integrators to mount the complete power electronics – input power conversion, isolation, DC output control – extremely close to the cell. Its high efficiency of better than 95% and complete bi-directional charging and discharging provide a new level of energy efficiency in the Gigafactory.

Target Specifications Table

Target Specifications
Input Voltage:	400-850VDC or 380VAC-480VAC +/-10%, 50/60Hz (future)
Separate Control Voltage:	24VDC
Output Voltage:	0-5VDC at the Cell
Output Current:	±100A or ±300A
Output Power:	600W for 100A or 1500W for 300A per Channel
# of Output Channels:	4
Efficiency:	Better than 95% Fully Regenerative
Minimum Current Accuracy:	Better than 1% FS (±3A)
Target Current Accuracy:	Better than 0.1% FS (±0.3A or ±300mA)
Minimum Voltage Accuracy:	Better than 0.1% FS (±0.01V or ±10mV)
Target Voltage Accuracy:	Better than 0.01% FS (±0.001V or ±1mV)
Control Modes:	CC, CV, CP + Limits & Safeties
Cooling:	Air or Water
Remote Voltage Sense:	Yes
Charge/Discharge Profile Storage:	Yes
Pulse Charging/Discharging Capable:	Yes
External Contactor Control:	Yes, 1 contactor per channel
Internal Temperature Measurement:	Power Circuits & Power Terminals
External Temperature Measurment:	Yes, 1 thermistor per channel
Control Protocol:	REST API over Ethernet
Visual Feedback:	Basic LED Status Feedback