Traction Battery Pack
AssemblyLiquid-cooled lithium-ion pack at roughly 400 V storing 50-100 kWh. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Traction Battery Pack parts and their functions
7 top-level parts · 1,025 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Battery Module 5 parts | 8× | Series-connected cell modules |
| 2 | Battery Management Master 5 parts | 1× | Pack-level battery management |
| 3 | HV Contactor | 2× | Main positive and negative contactors |
| 4 | Battery Cooling Plate 3 parts | 4× | Coolant cold plates under modules |
| 5 | Pack Tray and Lid 3 parts | 1× | Sealed aluminium enclosure |
| 6 | HV Junction Box 3 parts | 1× | High-voltage distribution box |
| 7 | Manual Service Disconnect | 1× | Manual maintenance disconnect |
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Bill of materials for Traction Battery Pack
7 top-level lines · 30 rows shown · 1,025 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Battery Module 5 parts | electric-car-battery-module | 8× | 8 | 96 | assembly |
| 1.1 | Prismatic NMC Cell | electric-car-prismatic-cell | 24× | 192 | · | part |
| 1.2 | Nickel Busbar | cell-busbar | 6× | 48 | · | part |
| 1.3 | Module BMS Slave Board 4 parts | module-bms-slave | 1× | 8 | 63 | assembly |
| 1.3.1 | Bare PCB | pcb-bare | 1× | 8 | · | part |
| 1.3.2 | Microcontroller | mcu | 1× | 8 | · | part |
| 1.3.3 | Analog Front-End IC | afe-ic | 1× | 8 | · | part |
| 1.3.4 | SMD Passive (R/C/L) | smd-passives | 60× | 480 | · | part |
| 1.4 | Module Housing | module-housing | 1× | 8 | · | part |
| 1.5 | Thermal Interface Pad | thermal-pad | 2× | 16 | · | part |
| 2 | Battery Management Master 5 parts | electric-car-bms-master | 1× | 1 | 226 | assembly |
| 2.1 | Bare PCB | pcb-bare | 1× | 1 | · | part |
| 2.2 | Microcontroller | mcu | 2× | 2 | · | part |
| 2.3 | Current Sensor | current-sensor | 1× | 1 | · | part |
| 2.4 | CAN Transceiver | can-transceiver | 2× | 2 | · | part |
| 2.5 | SMD Passive (R/C/L) | smd-passives | 220× | 220 | · | part |
| 3 | HV Contactor | electric-car-hv-contactor | 2× | 2 | · | part |
| 4 | Battery Cooling Plate 3 parts | electric-car-cooling-plate | 4× | 4 | 4 | assembly |
| 4.1 | Aluminum Extrusion | aluminum-extrusion | 1× | 4 | · | part |
| 4.2 | Coolant Fitting | coolant-fitting | 2× | 8 | · | part |
| 4.3 | O-Ring Set | oring-set | 1× | 4 | · | part |
| 5 | Pack Tray and Lid 3 parts | electric-car-pack-tray | 1× | 1 | 4 | assembly |
| 5.1 | Sheet Metal Panel | sheet-panel | 2× | 2 | · | part |
| 5.2 | Pack Seal | pack-seal | 1× | 1 | · | part |
| 5.3 | Fastener Set | fastener-set | 1× | 1 | · | part |
| 6 | HV Junction Box 3 parts | electric-car-hv-junction | 1× | 1 | 8 | assembly |
| 6.1 | HV Pyro Fuse | electric-car-hv-fuse | 3× | 3 | · | part |
| 6.2 | Busbar Set | busbar-set | 1× | 1 | · | part |
| 6.3 | HV Connector | hv-connector | 4× | 4 | · | part |
| 7 | Manual Service Disconnect | electric-car-service-disconnect | 1× | 1 | · | part |
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Where the traction battery pack is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $1–$500. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
|
🇨🇳CATL
catl.com ↗
|
Ningde, CN | Li-ion cell & pack maker | 5,000 cells | 8–12 wks |
| evebattery.com ↗ | Huizhou, CN | Li-ion cell maker | 5,000 cells | 8–12 wks |
| amararaja.com ↗ | Tirupati, IN | Batteries & energy | 5,000 cells | 8–12 wks |
| durapowergroup.com ↗ | Singapore | Li-ion battery systems | 5,000 cells | 8–12 wks |
|
🇨🇳BYD
byd.com ↗
|
Shenzhen, CN | EV & battery manufacturer | 5,000 cells | 8–12 wks |