Expansion Tape for Cylindrical Batteries

Expansion Tape for Cylindrical Batteries

Specially designed for cylindrical lithium batteries. The tape expands automatically when exposed to electrolyte, reaching 200%‑400% expansion rate after 30‑minute immersion. It effectively fills gaps between cells and housings to prevent vibration‑induced solder detachment.

Features

• Ultra‑thin & lightweight: Only 45‑55μm in total thickness

• High expansion rate: 200%‑400% expansion after electrolyte immersion

• Good chemical affinity: Stable compatibility with battery electrolyte

• Customizable expansion performance: Adjustable film formula for foam‑like flexible expansion effect