Max weight 40kg

Potential Suppliers:

https://www.custompower.com/custom-battery-packs/lithium-iron-phosphate

• customer battery pack assembly

• need to request a quote for the price

https://www.power-sonic.com/batteries/psl-fp-series/

• commercially available - cylindrical, box types

• https://www.power-sonic.com/product/psl-fp-ifr18650ec/

  • `PSL-FP-IFR18650EC

  • 18650 cell type

  • 2000 cycles

  • 0.04 kg- can have 1000 cells

  • -20°C to 60°C

  • Open

    

    https://www.power-sonic.com/wp-content/uploads/2020/08/PSL-FP-IFR18650EC_Data_Sheet.pd

    • ^^technical data sheet for this cell

Specifications of the PSL-FP-IFR18650EC Cell:

Open

^^ cell capacity?

Price not specified - need to contact them

based on nominal voltage, need 130/3.2=about 41 cells in series to meet voltage requirement

Configuration: 24P 41S

Total number of cells: 984

Total Weight: 39.36kg

Max Voltage:

Nominal Voltage: 131.2 V

Min Voltage:

Nominal Capacity: 1.5Ah*24= 36 Ah

Minimum Capacity: 1.1Ah*24= 26.4 Ah ??

2000 charge cycles

Total volume [m^3]

• height: 65mm

• width: 18.2mm

• volume of each cell: 16,910.0937 mm^3

• Total volume = (volume of each cell)(# of cells) = (16910.0937)(984) = 16,639,532.2 mm^3 = 0.0166395322 m^3

• Max volume: lwh = 41(18.2) 24(18.2) (65) = 21,186,110.4 mm^3 = 0.0211861104 m^3

Gravimetric Density [Wh/kg]

Calculating the power capacity (nominal) of the battery:

V * Ah = (3.2 V * 41) * (1.5 Ah * 24) = 4723.3 Wh

Gravimetric:

??

Wh/kg = 4723.3/39.36 = 120 Wh/kg

Volumetric density [Wh/L]

??

Wh/L = 4723.3/0.0211861104/1000 = 222.9 Wh/L

Max discharge current [A]

• 4.5A/3C

• Total:

Max charge current [A]

• 1.5A/C

• Standard Charge Rate

• Max charge rate: should be below 3.7V

• Max Continuous Discharge Rate

• Max Peak Charge Rate