Li-ion Battery Insulation Gasket Barley Paper Price in Bangladesh

The Li-ion Battery Insulation Gasket Barley Paper is a thin electrical insulation component designed to provide an additional protective barrier around the positive terminal of cylindrical lithium-ion battery cells. It is commonly used with 18650 battery cells and can also be available in sizes intended for other cylindrical cell formats.

Barley paper, also commonly referred to as fish paper or electrical insulation paper, is valued for its insulating properties, flexibility, and mechanical strength. When positioned around a cell’s positive terminal, the gasket helps separate the positive terminal area from the surrounding metal cell casing and conductive materials.

This small component can be particularly useful when preparing battery cells for professional battery-pack assembly or repair. Commercially available versions are manufactured in different shapes, thicknesses, and terminal openings, so the correct size should always be selected for the specific battery cell.

What is a Battery Insulation Gasket?

A battery insulation gasket is a non-conductive ring or pad placed around a battery cell terminal. Its primary purpose is to provide electrical isolation and reduce the possibility of an unintended electrical connection between the positive terminal and nearby conductive surfaces.

For cylindrical Li-ion cells, the positive terminal is located close to the metal outer casing. An appropriately sized insulating gasket creates an additional insulating boundary around this area.

The gasket is a supplementary insulation component. It does not replace a battery protection circuit, BMS, proper cell wrapping, or appropriate battery-pack construction practices.

Key Features

Electrical Insulation

The barley-paper material provides a non-conductive barrier around the battery terminal, helping reduce the risk of accidental contact with nearby conductive materials.

Positive Terminal Protection

The ring-shaped design is intended to fit around the positive terminal area of compatible cylindrical cells.

Adhesive Backing

Many versions feature a light adhesive backing that helps keep the gasket positioned during battery assembly.

Thin and Flexible Construction

The thin paper construction allows the gasket to fit into compact battery-pack arrangements without adding significant bulk.

Suitable for Battery Pack Assembly

These gaskets are commonly used as one component of cylindrical Li-ion battery pack preparation and insulation.

Technical Specifications

• Product Type: Li-ion battery insulation gasket
• Material: Barley paper / electrical insulation paper
• Material Type: Non-conductive insulating sheet material
• Application: Cylindrical Li-ion battery cells
• Common Cell: 18650
• Other Sizes: Versions may be available for 21700, 26650 and other cylindrical cells
• Shape: Ring / terminal gasket
• Backing: Adhesive backing on applicable versions
• Thickness: Common versions are around 0.2 mm, but actual thickness can vary
• Color: Commonly green
• Quantity: Depends on the selected package
• Terminal Position: Positive terminal insulation

Commercial examples show approximately 0.2–0.25 mm versions, while dimensions and pack quantities vary between manufacturers and suppliers. Therefore, the exact supplied specification should be checked against the product variant before purchase.

Working Principle

The Li-ion Battery Insulation Gasket works through electrical isolation. The non-conductive paper ring is positioned around the positive terminal area of a cylindrical battery cell.

Because the gasket is electrically insulating, it creates a physical barrier between the positive terminal region and surrounding conductive surfaces. This is particularly useful in compact battery configurations where cells, nickel strips, holders, or other conductive components are positioned close together.

The gasket should be considered one part of a complete insulation system. Battery cells should also have their outer insulation and other protective components in good condition.

Applications

The Li-ion Battery Insulation Gasket can be used for:

• 18650 lithium-ion battery cells
• Cylindrical battery pack insulation
• Positive terminal insulation
• Battery cell refurbishment
• Custom battery-pack components
• Electronics and power-bank projects
• Replacement of damaged terminal insulation rings
• Battery cell storage and assembly projects
• Electrical insulation around cylindrical cell terminals

Advantages

• Provides an additional electrical insulation layer
• Compact and lightweight
• Easy to position on compatible cells
• Thin construction saves space
• Useful for cylindrical Li-ion battery applications
• Adhesive-backed versions help maintain positioning
• Available in different cell-specific sizes

Limitations

The gasket is only an insulation accessory and does not provide battery protection by itself. It cannot replace a suitable BMS, appropriate charger, intact cell wrapping, or other required battery safety components.

Different battery cells require different gasket dimensions. A gasket intended for an 18650 cell should not automatically be assumed to fit a 21700 or 26650 cell.

The material, adhesive, thickness, temperature resistance, and dimensions may vary between manufacturers, so the actual product specification should be confirmed before use.

Installation / Usage Tips

Select a gasket that matches the battery cell’s terminal dimensions. Before application, make sure the relevant surface is clean and free from loose debris.

Position the gasket so that it properly surrounds the positive terminal without obstructing the intended electrical contact area. If the gasket is adhesive-backed, apply it carefully so it remains flat and properly aligned.

Inspect the battery’s outer wrap and insulation before assembly. Do not use cells with damaged, swollen, leaking, or otherwise compromised physical condition.

For battery-pack work, appropriate protection circuitry, compatible cells, suitable insulation, and professional battery assembly practices are important.

Why Choose Li-ion Battery Insulation Gasket Barley Paper?

A battery insulation gasket is a small but useful component for maintaining insulation around cylindrical Li-ion cell terminals. Its simple ring design makes it convenient for battery-pack preparation, cell refurbishment, and electronics projects where additional terminal insulation is required.

For 18650 battery applications, selecting the correct gasket size helps ensure that the insulating material properly covers the intended area without interfering with the electrical connection.

Why Buy from ElectroXBD?

ElectroXBD is a trusted electronics components supplier in Bangladesh, offering a range of battery accessories, electronic components, modules, tools, and robotics-related products.

Our shop is located at:

H#1/1, Opposite of RH Chhatrabash, Vodra-Talaimari Road, Rajshahi

ElectroXBD focuses on providing practical electronic components for students, hobbyists, engineers, technicians, makers, and project developers.

ElectroXBD – Trusted Source for Reliable Electronic Parts

Frequently Asked Questions (FAQ)

What is a Li-ion battery insulation gasket?

A Li-ion battery insulation gasket is a non-conductive ring or pad used around the terminal area of cylindrical lithium-ion battery cells to provide additional electrical insulation.

What is barley paper used for in batteries?

Barley paper, also called fish paper in many battery applications, is used as an electrical insulation material. It can help isolate the positive terminal area from nearby conductive surfaces.

Can this gasket be used with 18650 batteries?

Yes. Many commercially available versions are specifically designed for 18650 cylindrical Li-ion cells. The gasket size should match the particular cell and terminal dimensions.

Is the battery insulation gasket a BMS?

No. A battery insulation gasket is only an insulating accessory. It does not provide overcharge, over-discharge, overcurrent, or short-circuit protection. A suitable BMS or protection circuit is required where appropriate.

Where can I buy Li-ion Battery Insulation Gasket Barley Paper in Bangladesh?

You can buy the Li-ion Battery Insulation Gasket Barley Paper from Electroxbd, a trusted electronics components supplier in Bangladesh.

Common Questions:

Q: What is the price of Li-ion Battery Insulation Gasket Barley Paper in Bangladesh?

A: The latest price of Li-ion Battery Insulation Gasket Barley Paper in Bangladesh is 1 BDT.

Q: Where to buy Li-ion Battery Insulation Gasket Barley Paper in Bangladesh?

A: You can buy the Li-ion Battery Insulation Gasket Barley Paper at the best price from ElectroXBD in Bangladesh.