From thermal safety and electrical insulation to structural bonding: our solutions for battery systems offer maximum performance combined with maximum sustainability.
Whether material selection, system consulting or security of supply - we support you along the entire value chain with suitable solutions for your battery applications.
Thermal Runaway Propagation Protection
Thermal runaway remains one of the most critical risks in battery systems. Our high-temperature-resistant flame barrier materials provide effective protection against the propagation of thermal events:
Thermal Interface Materials - managing heat effectively
Thermally conductive gap fillers, pads and pastes ensure efficient heat transfer between the cell module and the cooling structure. In our overview table you will find solutions for a wide range of requirements in terms of conductivity, mouldability, compressibility and type of application.
| product | Breakdown voltage [KV] | Thickness [mm] | Protection level [°C] | Thermal conductivity [W/mK] | CTI | Flame class |
| FiberCork | 5-15 | 1.4-5 | 700-1,200 °C (>10 min, torch test) |
0.118 | - | UL 2596 TaG |
| FiberCork+ | 5-15 | 1.8-5 | 700-1,200 °C (>10 min, torch test) |
0.092 | - | UL 2596 TaG |
| Calin 142 | - | 1.8-10 | 1,000 °C | 0,08 | - | - |
| 3M™ FRB NT | 1.1-8 | 0.076-0.381 | IEC 60695-2-1 Glow wire flammability index (GWFI) 960°C |
0.15-0.25 | 600 | UL 94 V-0.5VA |
| Wevosil 22027 FL | - | 1,000 °C short term | 0.2 | - | UL 94 V-1 |
| Product | Thermal conductivity [W/mK] | Type | Shore hardness | Viscosity [mPa*s] | Temperature [°C] | Flame class | Hardening time [h] |
| Wevosil 26040 Fl | 4.0 | Silicone | Shore 00 60-80 | 100,000 - 150,000 | -60°C to +200 | UL 94 V-0 | 4 |
| tesa® 58326 | 2.0 | Acrylic thermal tape 1.2mm, 15KV |
Shore 00 87STK | -, solid tape | -40 to +100 | - | - |
| tesa® 58395 | 0.6 | Acrylic thermal tape 0.25mm, 4KV |
Shore 00 70 STK |
-, solid tape | -40 to +125 (+150 short term) |
- | - |
For high-voltage applications, we offer electrical insulation materials with excellent dielectric strength, partial discharge resistance and mechanical robustness. Whether as flexible insulating film, customised precistion die-cut parts or as protective busbar sleeves - our solutions safeguard your systems on all levels.
| Product | Material | Breakdown voltage [KV] | Thickness [mm] | Temperature [°C] | CTI (V) | Flame class | UL file |
| Hostaphan® | PET film | 4.5-30 | 0.019-0.500 | -70 to 150 | - | - | E53895 |
| Melinex® 238 | PET film | 16-26 | 0.125-350 | -70 to 150 | ≥ 600 | VTM-2 | E93687 |
| Mylar® A | PET film | 6.1-21 | 0.019-0.350 | -70 to 150 | 400-599 | VTM-2 | E93687 |
| SynTherm® P | PET film | 4.5-26 | 0.023-0.350 | -40 to 140 | - | - | - |
| Nomex® 410 | Aramid paper | 0.9-20 | 0.05-0.760 | -190 to 180 | 175-249 | UL 94 V-0 | E34739 |
| SynTherm® YT510 | Aramid paper | 0.65-14.4 | 0.05-0.760 | -190 to 180 | 400-599 | UL 94 V-0 / VTM-0 | E358562 |
| Kapton® HN | PI film (polyimide) | 7.5-19.25 | 0.025-0.125 | -190 to 240 | 100-175 | UL 94 V-0 | E39505 |
| SynTherm® H | PI film (polyimide) | 3.75-22 | 0.025-0.200 | -190 to 240 | 100-175 | UL 94 V-0 | E358562 |
| Formex™ GK | PP film (polypropylene) | 11-41 | 0.127-1.57 | up to 115 | ≥600 | UL 94 V-0 / VTM-0 | E121855 |
| SynTherm® HV-D | ETFE film (ethylene tetrafluoroethylene) | 17-29 | 0.1-0.25 | -40 to 150 | ≥600 | VTM-0 | - |
| Teonex® Q5100 | PEN film (polyethylene naphthalate) | 9.6-28.7 | 0.012-0.250 | -40 to 160 | 175-249 | UL 94 VTM-2 | E51743 |
| Lexan™ FR700 | PC (polycarbonate) | 14-44 | 0.250-0.750 | -40 to 150 | - | UL 94 V-0 | E121562, E207780, E45329 |
| Product | Film material | Adhesive | Film thickness/ total thickness [mm] |
Breakdown voltage [KV] |
Tempera- ture [°C] |
Flame class | UL file |
| DuPont™ Kapton® polyimide film (Intertape® 4118) | Polyimide tape / Kapton® | silicone | 0.025 / 0.067 | 7 | -60 to +260 | UL 510 | E20780 |
| SynTape® H/560 | Polyimide tape / Kapton® | silicone | 0.025 / 0.060 | 6 | up to +180 | UL 510 | - |
| SynTape® H/660 | Polyimide tape / Kapton® | silicone | 0.050 / 0.065 | 10 | up to +180 | UL 510 | - |
| Isotape® 4419PV3 | Polyimide tape / Kapton® | silicone | 0.050 / 0.090 | 8 | -73 to +260 | - | - |
| Intertape® 4616 | Glass fabric | rubber | 0.127 / 0.178 | 2.5 | up to +155 | BU 2 | E20780 |
| Intertape® 4617 | Glass fabric | acrylic | 0.127 / 0.178 | 3 | up to +155 | BU 2 | E20780 |
| Intertape® 4618 | Glass fabric | silicone | 0.127 / 0.178 | 2.5 | up to +200 | BU 1 | E20780 |
| Isotape® 4637PV3 | Glass fabric | acrylic | 0.145 / 0.180 | 2.5 | up to +155 | - | E315249 |
| Isotape® 4638PV3 | Glass fabric | silicone | 0.125 / 0.190 | 4 | up to +200 | - | E315249 |
| SynTape® B 616/ GL.95 | Glass fabric | rubber | 0.120 / 0.170 | 2.5 | up to +130 | - | E178430 |
| SynTape® F 562/ GL.94 | Glass fabric | acrylic | 0.120 / 0.165 | 2.5 | up to +155 | - | E178430 |
| SynTape® H 618/ GL.96 | Glass fabric | silicone | 0.120 / 0.170 | 2.5 | up to +180 | UL 510 | E178430 |
| SynTape® X50 |
Aramid / Nomex® |
acrylic | 0.050 / 0.100 | 2.5 | up to +155 | - | E178430 |
| SynTape® X80 |
Aramid / Nomex® |
acrylic | 0.080 / 0.120 | 3.8 | up to +155 | - | - |
| SynTape® 6455 |
Aramid / Nomex® |
rubber | 0.080 / 0.135 | 7 | - | - | - |
Structural adhesives do more than just bond components: they seal, compensate for mechanical stresses, and reduce vibration. Our materials are engineered to meet the dynamic requirements of battery modules – from cell to spacer to module frame.
| Material | Carrier | Adhesive | Backing thickness / Total thickness [mm] |
Breakdown voltage [KV] |
Adhesion to steel [N/cm] | Temperature °C | Flame class |
| SynTape® S2 AG100 | none (transfer tape) | acrylic | 0 / 0.100 | - | 10 after 24 h | -40 to +200 | - |
| SynTape® S20011 | none (transfer tape) | acrylic | 0 / 0.50 | - | 8 after 24 h | -40 to +180 | - |
| SynTape® A16-320 | PET fleece, 12 g/m² | acrylic | 0.100 / 0.100 | - | 6.4 | -40 to +100 | - |
| 3M™ no. 4646F | none (transfer tape) | acrylic | 0 /0.6 | - | 25 | -35 to +150 | - |
| H220 H-Old | Kapton® | silicone | 0.025 / 0.100 | 7 | 2.7 | +180, short-term + 260 | UL 510 |
| ATP S- 4610 FR | PES/PVA fabric | acrylic | 0.09 / 0.100 | - | 6 after 24h | -40 to +140 | VTM-0 |
| tesa® 58374 | PET | acrylic | 0.069 / 0.100 | 6 | 8.2 / 9.2 after 14 d | +125 short term +200 | UL94 VTM-0 |
| tesa® ACXplus 76730 Box Seal |
Acrylic foam | acrylic | 2.8 | - | 5 | 1,050 (5 minutes) | - |
| Product | Film material | Adhesive | Film Thickness / Total Thickness [mm] |
Breakdownvoltage* [KV] |
Adhesion to steel [N/cm] |
CTI [V] | UL file |
| tesa® 58352 Cell Wrapping |
PET tape | Acrylic | 0.023/0.085 | 7 | 4.5 | 400 backing / 600 adhesive |
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