Industry Workflows / Battery Technology / Module Manufacturing
Industry Workflow

Battery Module Manufacturing Process

Understand the essential stages and equipment used in lithium-ion battery module production, enabling efficient and scalable manufacturing across applications.

The process, end to end
InEnd-of-life & reject batteries
1Cell Preparation2Module Assembly3Electrical Connection & BMS4Lid Assembly & Labelling
OutBattery-grade materials
Stage 1 of 4
1

Cell Preparation

Individual battery cells are inspected, cleaned, and tested to ensure consistency and compatibility before module assembly. This stage may also include loading cells into fixtures, surface preparation, application of adhesives or thermal interface materials (TIM).

Dr. Gael Chouchelamane
Takes in
Individual battery cells (prismatic, cylindrical, pouch)Cell packaging (trays, boxes)AdhesivesThermal interface materials (TIM)
Produces
Cleaned and potentially bonded cells, ready for module assembly
Read the full Cell Preparation guide →3 steps · 3 questions answered · 1 vendor solution
Stage 2 of 4
2

Module Assembly

Prepared cells are assembled into the module’s structural frame. This stage includes accurate cell placement, frame joining and installation of compression features such as tension bands or pressure pads to ensure mechanical stability and thermal performance.

Dr. Gael Chouchelamane
Takes in
Cells (Inspected, Sorted, Cleaned, Potentially Bonded)Module Frame/Enclosure Components (Base Plates, End Plates, Rods, Tension Bands)Insulation Materials (Films, Sheets Between Cells or Cells and Frame)Fasteners (Screws, Bolts, Rivets)Compression Elements (Pressure Pads or External Fixtures)
Produces
A Mechanically Assembled Module Frame Assembly
In this stage
Read the full Module Assembly guide →1 step · 1 vendor solution
Stage 3 of 4
3

Electrical Connection & BMS

Cells are electrically connected using busbars to achieve the desired voltage and capacity. The BMS is integrated via sensing circuits, with strategically placed sensors for voltage and temperature monitoring. Welding methods ensure strong joints and potting may be used for additional protection.

Dr. Gael Chouchelamane
Takes in
Mechanically assembled modulesBusbarsCell Supervising Circuits (CSCs)Voltage and temperature sense wires/harnesses and connectorResin/potting compoundsConnectors for external power and signal interfaces
Produces
Electrically assembled battery modules
Read the full Electrical Connection & BMS guide →1 vendor solution
Stage 4 of 4
4

Lid Assembly & Labelling

The module lid is securely attached to the module frame to ensure the right level of environmental protection is achieved. Labels are then applied to provide assembly serial numbers for traceability, technical specification and safety warnings—completing the module for final testing.

Dr. Gael Chouchelamane
Takes in
Electrically Assembled Battery ModulesModule Lids/Covers (Metal, Plastic, or Composite)Seals or Gaskets (e.g.,Pre-formed, Liquid Dispensable)Fasteners (Screws, Bolts, Clips) or Bonding Agents/Welding Consumables for lid AttachmentLabels (pre-printed stock or blank rolls for on-demand printing)
Produces
A fully assembled, sealed and labelled module
Read the full Lid Assembly & Labelling guide →1 vendor solution