Tab Lead

Features of Futaba's Tab Leads

Electrolyte Resistance

Inside a lithium-ion battery is an electrolyte made by dissolving LiPF6 (lithium hexafluorophosphate) and other substances in an organic solvent.
It is known that when water reacts with this electrolyte, hydrofluoric acid is generated.
This hydrofluoric acid corrodes the leads and reduces adhesion to the seals, which can cause electrolyte leakage.
Futaba's tab leads have high electrolyte resistance and can maintain high sealing performance for a long period of time due to our original surface treatment of the lead material.

Sealing Perfomance

To prevent electrolyte inside the battery from leaking out, the tab leads must have sealing performance in addition to adhesion to the leads and packaging materials.
Our tab leads have few burrs, and by optimizing the adhesion method of the seal, there are no air gaps at the lead edge, resulting in high sealing performance.

Heat resistance of sealing material

The manufacturing process for laminated batteries involves thermo-compression bonding of the packaging material and tab leads.
The sealant that is made thinner by this thermo-compression process increases the risk of a short circuit between the packaging material and the tab leads.
Futaba's tab leads retain their thickness by using heat-resistant seals.
We also use a dual-type, three-layer (adhesive/heat-resistant/adhesive) sealant to ensure good adhesion to the packaging material.

Thicker Leads(0.8mmt)

In recent years, as the driving range of electric vehicles (EVs) has increased, rapid charging of batteries with high current density is needed.
This requires reducing the internal resistance of the battery, and the tab leads need to be thicker.
However, increasing the thickness of the leads raises concerns about reduced sealing performance at lead edge portion.
We have developed thicker tab leads that ensure sealing performance by giving the leads a tapered shape and optimizing the sealing method.

Please feel free to contact us for quotations and samples of our tab leads for quick charging.

We supply custom-developed tab leads that are best suitable for our customers' requirements and applications.
We can manufacture not only conventional rectangular, but also T-shaped, bent, and drilled tab leads, which are complex and difficult to process.
We will propose the most suitable tab lead according to the customer's requirements.

For more information, please visit this page.

Track record of supplying automotive products

We have manufactured fluorescent display tubes (VFDs), touch sensors (TS), and organic EL displays (OLEDs), and we have a track record of being widely adopted by automotive manufacturers and automotive parts manufacturers in Japan, Europe, and the United States.

Similarly, in the manufacturing of tab leads, we will leverage our experience in manufacturing automotive-related parts to conduct quality and process control that meets our customers' demands for high quality and high reliability.

Product management with traceability

Two-dimensional codes can be printed on products to track the following information

• Date of manufacture, processing time
• Material lot for lead and sealant
• Sealant thermocompression process data (temperature, time, etc.)
• Automatic Optical Inspection (AOI) image data, etc.

If you would like to request a quote, a sample or demo, or have any questions about our products, please feel free to contact us via our contact form.