• Dagong ESS

Different Types of CCS for Battery Modules: A Complete Comparison Guide

A Battery Cell Contact System (CCS) is a core electrical and signal interface used inside lithium battery modules. It integrates conductive busbars, signal circuits, insulation, and structural components into a compact module.

The CCS performs key functions such as:

• Cell series and parallel connection

• Voltage sampling

• Temperature sensing

• Overcurrent protection

• Signal transmission to the BMS

Modern CCS designs improve reliability, reduce wiring complexity, and support automated assembly.

Types of CCS

There are several main CCS signal collection technologies used in battery modules.

• Wire Harness CCS

Traditional wiring solution

Mature and cost-effective

Lower automation compatibility

• PCB CCS

Integrated signal circuits on a PCB

Compact and lightweight

Suitable for automated production

• FPC CCS

Flexible printed circuit structure

High integration and lightweight design

Higher cost but excellent performance

• FFC CCS

Flexible flat cable structure

Suitable for long modules

Cost-optimized solution

• FDC CCS

Die-cut flexible circuit

Simplified production process

Lower manufacturing cost

• FCC Hybrid CCS

Combination of FFC with FPC or FDC

Hybrid signal structure

Next-generation design approach

Features of Different CCS Types

Each CCS type offers different advantages.

CCS Type	Main Advantage	Typical Use
Wire Harness	Low cost, mature technology	Small or cost-sensitive projects
PCB	High integration	Automated production
FPC	Lightweight, high performance	High-end battery modules
FFC	Long module compatibility	Large battery modules
FDC	Cost-efficient mass production	Large-scale ESS
FCC	Hybrid, next-gen design	Advanced battery systems

Applications of Different CCS Types

Different CCS solutions are used across a wide range of battery systems.

Typical applications:

• Commercial and industrial ESS

• Containerized energy storage systems

• Grid-scale battery storage

• Electric vehicle battery packs

• Modular lithium battery cabinets

Selection depends on cost, performance, and production requirements.

Price of CCS Solutions

The cost of energy storage systems for renewable energy integration depends on several factors, including system capacity, storage duration, battery type, control software, installation conditions, and auxiliary equipment.

Pricing is usually quoted under international trade terms such as EXW, FOB, or CIF, depending on project location and logistics preferences. For a tailored quotation based on your specific project needs, it's best to consult directly with the supplier.

How to Select the Right CCS Type?

When selecting a CCS solution, consider:

• Module structure and size

• Production volume

• Automation requirements

• Weight constraints

• Cost targets

• Signal accuracy requirements

There is no single best solution; the optimal choice depends on the project’s technical and economic priorities.

The Supplier of CCS Solutions

Integrated CCS solutions are widely used in modern energy storage battery modules, including commercial, industrial, and grid-scale systems with air-cooled and liquid-cooled designs.

If you are interested in CCS products or would like to learn more about battery module connection solutions, please contact sales@dagongess.com for further information.