Battery Cell Contact System

A Battery Cell Contact System (Battery CCS) is a critical electrical and sensing solution used in modern lithium battery packs for electric vehicles (EV), hybrid vehicles, and Energy Storage Systems. It integrates power transmission, voltage sampling, and temperature monitoring into a compact and highly efficient assembly.

At G&N Fortune Limited, we specialize in designing and manufacturing custom Cell Contact Systems and Battery CCS solutions for global customers, including OEM and customized battery connection projects.

What Is a Cell Contact System?

A Cell Contact System (CCS) is an integrated electrical connection system used inside lithium battery packs. It connects individual battery cells and enables both current transmission and signal collection.

A typical Cell Contact System for EV Battery includes:

• Copper or aluminum busbars

• Flexible Printed Circuit (FPC)

• Voltage sampling circuits

• Temperature sensors (NTC)

• Cell contact plates

• Connectors

• Insulation layers

• Plastic carrier structure

A Battery CCS replaces traditional wire harness systems, making the battery pack lighter, safer, and easier to assemble.

What Is the Purpose of a Battery Contactor?

A battery contactor is an electrically controlled switch used in high-voltage battery systems. Its main purpose is:

High-Voltage Circuit Control

It connects or disconnects the main power circuit of the battery pack under safe conditions.

Safety Protection

In case of abnormal current, short circuit, or maintenance requirements, the battery contactor isolates the battery system.

System Power Management

It allows the Battery Management System (BMS) to safely control energy flow between the battery pack and vehicle systems.

The battery contactor controls high-voltage switching, while the Cell Contact System focuses on internal cell-level connection and monitoring.

Battery Cell Contact System Diagram (Working Principle)

A battery cell contact system diagram typically shows how CCS connects battery cells to the BMS:

Step 1 – Cell Connection

Battery cells are connected in series or parallel using battery busbar assembly.

Step 2 – Voltage Sampling

The FPC CCS collects voltage data from each cell.

Step 3 – Temperature Monitoring

NTC sensors measure battery temperature in real time.

Step 4 – Data Transmission

Signals are transmitted to the Battery Management System (BMS).

Step 5 – System Control

The BMS communicates with the battery contactor to control charging and discharging.

Battery CCS vs CCA Battery vs CCS Lithium Battery

Battery CCS (Cell Contact System)

An integrated system combining busbars, FPC, and sensors for EV battery packs.

CCA Battery

CCA usually refers to Cold Cranking Amps in automotive starter batteries and is not related to lithium EV battery CCS systems.

CCS Lithium Battery

Refers to lithium battery packs that use a Cell Contact System (CCS) for internal electrical connection and monitoring.

Types of Battery Cell Contact Systems

Custom Cell Contact System

Designed according to specific battery pack structure and electrical requirements.

OEM Battery CCS

Standardized production for automotive and energy storage manufacturers.

Flexible Busbar CCS

Uses flexible circuits for lightweight and compact battery designs.

Features of Our Battery Cell Contact System

High Electrical Conductivity

Using copper busbar for battery pack and aluminum options for lightweight design.

High Integration

Combines sensing, conduction, and protection in one CCS Assembly.

Lightweight Structure

Replaces traditional wiring with flexible busbar and FPC technology.

High Reliability

Stable performance under vibration, temperature changes, and high-current environments.

Custom Engineering

Full custom battery CCS design based on customer battery pack layout.

Battery Cell Contact System Manufacturers

As professional battery cell contact system manufacturers, we provide:

• OEM & ODM production

• Custom battery connection solutions

• Precision busbar manufacturing

• FPC CCS design and assembly

• EV battery busbar systems

• Lithium battery CCS integration

We support global EV manufacturers, energy storage companies, and battery pack integrators.

Applications

Cell Contact System for EV Battery is widely used in:

• Electric Vehicles (EV)

• Hybrid Electric Vehicles (HEV)

• Plug-in Hybrid Electric Vehicles (PHEV)

• Energy Storage Systems (ESS)

• Battery modules

• Lithium battery packs

• Commercial EV systems

Advantages of Battery CCS

• Improved battery safety

• Reduced wiring complexity

• Higher energy efficiency

• Accurate voltage monitoring

• Reliable temperature sensing

• Lower production cost

• Easy automated assembly

Why Choose Our Custom Battery CCS?

We provide complete customized battery connection solutions, including:

• Custom Cell Contact System design

• Battery busbar assembly manufacturing

• EV battery busbar solutions

• Flexible busbar integration

• OEM Cell Contact System production

• High-volume manufacturing capability

Frequently Asked Questions

What is a cell contact system?

A cell contact system is an integrated structure that connects battery cells and collects voltage and temperature data for battery management systems.

What is a battery cell contact system used for?

It is used in EV battery packs to ensure safe current transmission, real-time monitoring, and efficient battery management.

What is the difference between CCS and battery contactor?

CCS manages cell-level connections and data collection, while a battery contactor controls high-voltage switching of the entire battery pack.

Who are battery cell contact system manufacturers?

They are companies that design and produce CCS assemblies, busbars, and integrated battery connection systems for EV and energy storage industries.