Pack cost breakdown: Cells + Integration + BMS (Source: ZVE). Key Rule: Cells account for 48–55% (Source: Foxtheon); Core: Pack integration accounts for 15–20% (Source: ZVE); Note: BMS accounts for 7–10% (Source: ZVE).
I.
Cell Costs
Share: LFP cells 48–55% (Source: Foxtheon); Unit Price: $88–102/kWh (Source: Foxtheon); Ex-factory: Pack-level $80/kWh (Source: EnergyBlog); Reduction: Lithium prices steadily dropped by 18% (Source: Foxtheon); Price Differential: Premium for Grade A matched cells (Source: Foxtheon)—Cells: 48–55% + $88 + Grade A (three key points).
II.
Pack Integration
Share: Pack integration 15–20% (Source: ZVE); Unit Price: $25–35/kWh (Source: Foxtheon); Domestic: 0.04 RMB/Wh, totaling 10,400 RMB (Source: Mida); Components: Modules, busbars, high-voltage wiring harnesses (Source: Mida); Fixing: Cell securing and electrical connections (Source: Mida)—Integration: 15–20% + $25 + Wiring harnesses (three components).
III. BMS System
Cost Share: BMS 7–10% (Source: ZVE); Unit Price: $15–25/kWh (Source: ZVE); Domestic Price: 0.03 RMB/Wh, totaling 8,000 RMB (Source: Mida); Functions: Master/slave control and cell balancing (Source: Mida); Safety: Overcharge, over-discharge, and short-circuit protection (Source: Mida) — BMS: 7–10% + $15 + Master control (three key points).
IV.
Structural Components & Enclosure
Cost Share: Structural components/enclosure 12–15% (Source: Huaniu); Components: Sheet metal enclosure and fire-resistant insulation (Source: Huaniu); Materials: 1.2mm cold-rolled steel vs. 2.0mm galvanized steel (Source: Huaniu); Pack Shell: Pack housing $6/kWh, approx. 9% (Source: TechMade); Rack: Module assembly rack $25–35 (Source: Foxtheon) — Enclosure: 12–15% + Fire resistance + Galvanized steel (three key points).
V.
Thermal Management
Air Cooling: Passive air cooling $10–15/kWh (Source: Foxtheon); Liquid Cooling: Active liquid cooling $25–35/kWh (Source: Foxtheon); High Density: Liquid cooling recommended for high energy density (Source: Foxtheon); Temperature Sensing: Temperature sensors (Source: Douyin); Cost: Liquid cooling temperature control system 8,000 RMB (Source: Douyin) — Thermal Management: Air cooling $10 + Liquid cooling $25 + Temperature control (three parameters).
VI. Assembly and Certification
Assembly: Manual assembly, full inspection, and aging (Source: Sohu); Testing: Assembly inspection (Source: Douyin); Certification: Certification cost allocation (Source: Sohu); Tax: PACK consumption tax of 0.00071 CNY/Wh (Source: SMM); Transportation: Transport, loading/unloading, and warehousing costs (Source: T/CAAMTB)—Assembly: Labor + Certification + Tax (three components).
VII.
Procurement Recommendations
First, verify cells (48–55%); second, evaluate integration (wiring harnesses and structural components); third, assess BMS (functional safety); fourth, inspect the casing (fire-resistant materials);
fifth, calculate taxes (consumption tax pass-through)—PACK: Cells + Integration + BMS (three core elements).
