New Energy
Battery bonding, insulation, thermal and flame-retardant tapes for EV, storage and solar.
Battery Fixing Tapes: Permanent and Removable
Holding a cell or a module in place while leaving a defined way to take it out again, which is the requirement that separates a battery tape from every other bonding job.
Vibration and shockRemovabilityThin designsDisassembly
The problem
Why this application is difficult
A battery bond has to hold through vibration and thermal cycling and, where the pack is designed to be serviceable, it also has to let go on purpose. Both requirements are absolute and they conflict. Devices get heavier in the battery and thinner in the chassis at the same time, so the tape carries more load in less space, and whoever opens the pack later should not have to pry at a live cell.
Our approach
What we review before proposing a material
Wrap and fix
The cell is wrapped in a single-sided film and the wrap is bonded to the housing, so the cell lifts out of a sleeve rather than off an adhesive layer. This route usually uses a thinner multi-layer construction, and the wrap is part of the design.
Permanent fixing
Maximum hold and impact resistance, chosen where the pack is not designed to be opened. It suits thin designs, and it is the route that makes later service a heat or force problem rather than a routine step.
Stretch release
A die-cut tape is bonded to the cell and pulled at end of life; the construction elongates and the bond releases with little residue. Tear resistance and release force both matter, and the pull tab is a design feature, not an accessory.
Solvent release
High initial hold that drops when a solvent reaches the bond line, which allows a thin design to be opened without force. The solvent, the dwell time and how the housing vents all have to be agreed before it is used.
Typical constructions
| Fixing intent | How the bond behaves | Product family |
|---|---|---|
| Cell wrap inside a pack | Single-sided film wrap plus a bonding tape | Functional tape |
| Module fixed permanently | High-cohesion double-sided tape | Double-sided tape |
| User-replaceable cell | Stretch-release die-cut tape with a pull tab | Die-cut parts |
| Service-bench removal | Solvent-releasable construction | Specialty tape |
| Insulation between cells | PET film or a flame-rated grade, per document | Functional tape |
Constructions are starting points. The final choice depends on the substrate, process, test standard and volume.
Applications
Consumer device cellsPower tool and garden tool packsBattery modules and packsCell-to-housing fixingBusbar and BMS board mountingInsulation barriers and spacersField-replaceable cellsRecycling and disassembly
What you get
- Release behaviour treated as a specification item, not a hope
- Four fixing routes compared against the actual pack design
- Thin constructions that leave room for capacity
- Die-cut parts with the tab and liner format your line needs
- Material documents supplied for the grade actually selected
FAQ
Does a removable battery tape weaken the bond?
It changes what the bond does at end of life, which is a different question from strength. A removable construction is chosen so the hold during service and the release at the bench are both acceptable. A permanent tape is harder to release, and that is the problem it creates rather than the benefit it offers.
Can you supply a flame-rated grade?
Flame behaviour belongs to a specific grade and its document, not to a tape family. Tell us the requirement and we confirm what is available with the record that supports it.
How do you choose between stretch release and solvent release?
By how the pack is opened in practice. Stretch release needs room to pull and a tab someone can grip; solvent release needs the solvent to reach the bond line. Both are decisions made before the housing is closed.
Does the tape survive electrolyte and cell venting?
Exposure to electrolyte is a material question with a grade-specific answer. Describe the exposure and we state what data exists, or propose the test that would establish it.
Related
Industries and product families
Electronics & EMS
Display, battery, FPC and shielding tapes for consumer electronics and EMS assembly.
Double-Sided Tape
PET, non-woven, transfer and tissue tapes for electronics, automotive and appliance assembly.
Functional Tape
Conductive, polyimide, aluminum foil and thermal tapes for grounding, shielding, insulation and high-temperature protection.
Die-Cut Parts
Custom adhesive parts from drawing to ready-to-install: flat-bed, rotary, laser cutting and kitting.
Specialty Tape
Easy-release, heat-reactive, low-VOC, medical IVD and laser-through glass tapes for demanding applications.
Send the drawing or the failed part.
A photo, the substrate and the test you need are enough for a first review.