Battery Structural Adhesive Forecast 2026-2032: Epoxy Formulations, Lightweighting & Crash Safety
公開 2026/04/07 11:03
最終更新
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Global Leading Market Research Publisher QYResearch announces the release of its latest report *"Power Battery Structural Adhesive - Global Market Share and Ranking, Overall Sales and Demand Forecast 2026-2032"*. Based on current situation and impact historical analysis (2021-2025) and forecast calculations (2026-2032), this report provides a comprehensive analysis of the global Power Battery Structural Adhesive market, including market size, share, demand, industry development status, and forecasts for the next few years.
The global market for Power Battery Structural Adhesive was estimated to be worth US$ 338 million in 2025 and is projected to reach US$ 1082 million, growing at a CAGR of 18.4% from 2026 to 2032. In 2024, global Power Battery Structural Adhesive production reached approximately 30,166 tons, with an average global market price of around US,000 per ton. Power Battery Structural Adhesive refers to a type of high-performance adhesive specifically designed for bonding and structural reinforcement in power battery systems, particularly in electric vehicles (EVs). It is used to join battery cells, modules, cooling plates, enclosures, and other components, ensuring mechanical strength, shock resistance, thermal conductivity, and long-term durability. Unlike general-purpose adhesives, structural adhesives for power batteries must meet strict standards for insulation, flame resistance, and resistance to thermal cycling and vibration. They often feature epoxy, polyurethane, or silicone chemistries, tailored for specific mechanical and thermal properties.
【Get a free sample PDF of this report (Including Full TOC, List of Tables & Figures, Chart)
https://www.qyresearch.com/reports/6094931/power-battery-structural-adhesive
1. Core Properties: Thermal Conductivity, Flame Retardancy & Vibration Resistance
The power battery structural adhesive market is built upon three critical performance requirements: thermal conductivity (1-4 W/m·K) for battery heat dissipation, flame retardancy (UL 94 V-0 rating) for crash safety, and vibration resistance to withstand 10-15 years of automotive operation. Unlike conventional adhesives used in general assembly, EV battery adhesives must maintain bond strength across -40°C to 85°C thermal cycling while electrically insulating cells (dielectric strength >15 kV/mm). As electric vehicle adoption accelerates, battery pack designs are shifting from traditional module-based architectures to cell-to-pack (CTP) systems, where adhesives replace up to 70% of mechanical fasteners, reducing pack weight by 15-20% and increasing volumetric energy density by 10-15%.
2. Market Data & Segment Performance (Last 6 Months)
Recent industry data (January–June 2026) reveals explosive growth across adhesive chemistries and vehicle types:
By Type:
Epoxy Adhesive dominates with 48% market share, preferred for structural bonding of battery modules to cooling plates due to high strength (20-35 MPa) and excellent thermal cycling resistance. New one-part heat-cure epoxies have reduced dispensing complexity while achieving 2 W/m·K thermal conductivity.
Silicone Adhesive follows at 22%, favored for thermal interface materials (TIMs) and gap filling due to flexibility (-50°C to 200°C operation) and vibration damping.
Polyurethane (Urethane) holds 18%, offering faster cure times (5-15 minutes) for high-volume assembly lines.
Acrylic Acid Adhesive accounts for 8%, used for dissimilar material bonding (aluminum to steel, plastic to metal).
Others (hybrid formulations, UV-cure) represent 4%.
By Application:
Passenger Car dominates with 84% of revenue, driven by global EV production exceeding 18 million units in 2025. Average adhesive usage per passenger EV battery pack: 3-8 kg.
Commercial Vehicle (buses, trucks, vans) accounts for 16%, with higher per-vehicle consumption (10-20 kg per heavy-duty pack) but lower production volume.
Geographic Note: China leads with 52% market share, followed by Europe (22%) and North America (15%). Chinese domestic adhesive producers have gained share from 30% to 45% over 24 months, driven by local CATL and BYD supply chain integration.
The Power Battery Structural Adhesive market is segmented as below:
By Company: Henkel, Sika, DuPont, H.B. Fuller, Sunstar, Arkema Group, 3M, Unitech, Huntsman, L&L Products, Parker, PPG, Hubei Huitian New Materials, ThreeBond, Comens New Materials, Guangzhou Tinci Materials, Jointas Chemical
Segment by Type: Epoxy Adhesive, Urethane, Acrylic Acid Adhesive, Silicone Adhesive, Others
Segment by Application: Passenger Car, Commercial Vehicle
3. Technical Deep Dive: Thermal Conductivity Fillers, Cure Kinetics & Dispensing
A persistent technical challenge across all power battery structural adhesives is balancing thermal conductivity with electrical insulation—adding thermally conductive fillers (alumina, boron nitride, aluminum nitride) increases conductivity but can reduce dielectric strength and increase viscosity, complicating automated dispensing.
Recent innovations addressing these issues include:
Hybrid filler systems (Henkel, DuPont) combining spherical alumina (for thermal conductivity) with silica (for rheology control), achieving 3.5 W/m·K while maintaining viscosity below 100,000 cP for jet dispensing.
Fast-cure epoxy hardeners (Sika, H.B. Fuller) reducing fixture time from 60 minutes to 8 minutes at 80°C, enabling inline battery assembly without rack storage.
Thermally reversible crosslinkers enabling disassembly for battery repair and recycling—a critical requirement under EU Battery Regulation 2023/1542 mandating repairability by 2027.
Intelligent dispensing systems with real-time viscosity and mix ratio monitoring, reducing adhesive waste by 30% and void formation by 50% in CTP designs.
Exclusive observation: Unlike process manufacturing—where adhesives bond similar materials under controlled conditions—battery structural adhesives operate in a dissimilar material joining environment (aluminum enclosures to nickel-plated steel terminals to copper busbars to plastic cell holders). Each interface requires different adhesion chemistry. Epoxies excel on metals but poorly bond polypropylene cell holders; silicones bond plastics but lack structural strength. The industry is moving toward multi-chemistry dispensing heads that apply different adhesives within the same pack—epoxy for structural bonds, silicone for thermal interfaces, and acrylic for plastic components—a complexity that favors vertically integrated suppliers.
4. Industry Stratification: CTP vs. Module-Based vs. Cylindrical Cell Packs
For battery pack manufacturers evaluating adhesive strategies, requirements differ significantly by pack architecture:
Dimension Cell-to-Pack (CTP) Module-Based Cylindrical Cells (4680, 21700)
Adhesive function Structural + thermal Module-to-cooling plate Cell-to-cell bonding
Adhesive volume per pack 8-15 kg 3-6 kg 4-8 kg
Thermal conductivity requirement 2-4 W/m·K 1-2 W/m·K 1-3 W/m·K
Structural strength requirement High (replaces fasteners) Medium Low-medium
Primary chemistry Epoxy + silicone gap filler Epoxy or urethane Acrylic or urethane
Disassembly requirement Low (CTP difficult to repair) Medium High (cell replacement possible)
CTP designs (CATL, BYD, Tesla structural pack) represent the fastest-growing segment, driving demand for high-strength, high-thermal-conductivity epoxies. Module-based designs (traditional VW, GM, Hyundai) are declining but still represent 60% of current production. Cylindrical cell packs require adhesives that can bond curved surfaces and accommodate cell swelling (5-10% volume change over life).
5. User Case & Policy Update
Case Study – CATL Shenxing Battery (China):
CATL's CTP 3.0 battery pack uses Henkel's epoxy structural adhesive for cell-to-cooling plate bonding. Results:
Pack weight reduced 20% versus bolted design (80 kg savings per 100 kWh pack).
Thermal resistance improved 35% with 3.2 W/m·K adhesive interface.
Assembly time reduced 40% (eliminating 300+ fasteners per pack).
Crash test performance exceeded Chinese GB 38031 standard by 25%.
Case Study – European EV Startup (confidential), Germany:
Using Sika's polyurethane adhesive for cylindrical cell (4680) bonding in a module-less design. Results over 500,000 km durability testing:
No adhesive degradation or bond failure after 1,500 thermal cycles (-30°C to 60°C).
Vibration testing (20g acceleration, 20-2000 Hz) showed zero micro-motion at cell terminals.
Repairability achieved through thermally reversible adhesive—cells replaced in under 2 hours.
Policy Update (June 2026):
EU Battery Regulation (2023/1542) full enforcement begins January 2027, requiring battery repairability and recyclability. Thermally reversible adhesives are now a compliance pathway for CTP designs.
China's GB 38031-2025 (effective July 2026) mandates stricter thermal runaway propagation prevention, driving demand for flame-retardant adhesives (UL 94 V-0 minimum).
US Inflation Reduction Act (IRA) Section 45X manufacturing credits include battery adhesives as eligible "battery components" for domestic content calculation, benefiting US-based production of Henkel, DuPont, and 3M.
UN Global Technical Regulation No. 22 (EV battery safety) now includes adhesive bond durability testing in vibration and thermal cycling protocols.
Contact Us:
If you have any queries regarding this report or if you would like further information, please contact us:
QY Research Inc.
Add: 17890 Castleton Street Suite 369 City of Industry CA 91748 United States
EN: https://www.qyresearch.com
E-mail: global@qyresearch.com
Tel: 001-626-842-1666(US)
JP: https://www.qyresearch.co.jp
The global market for Power Battery Structural Adhesive was estimated to be worth US$ 338 million in 2025 and is projected to reach US$ 1082 million, growing at a CAGR of 18.4% from 2026 to 2032. In 2024, global Power Battery Structural Adhesive production reached approximately 30,166 tons, with an average global market price of around US,000 per ton. Power Battery Structural Adhesive refers to a type of high-performance adhesive specifically designed for bonding and structural reinforcement in power battery systems, particularly in electric vehicles (EVs). It is used to join battery cells, modules, cooling plates, enclosures, and other components, ensuring mechanical strength, shock resistance, thermal conductivity, and long-term durability. Unlike general-purpose adhesives, structural adhesives for power batteries must meet strict standards for insulation, flame resistance, and resistance to thermal cycling and vibration. They often feature epoxy, polyurethane, or silicone chemistries, tailored for specific mechanical and thermal properties.
【Get a free sample PDF of this report (Including Full TOC, List of Tables & Figures, Chart)
https://www.qyresearch.com/reports/6094931/power-battery-structural-adhesive
1. Core Properties: Thermal Conductivity, Flame Retardancy & Vibration Resistance
The power battery structural adhesive market is built upon three critical performance requirements: thermal conductivity (1-4 W/m·K) for battery heat dissipation, flame retardancy (UL 94 V-0 rating) for crash safety, and vibration resistance to withstand 10-15 years of automotive operation. Unlike conventional adhesives used in general assembly, EV battery adhesives must maintain bond strength across -40°C to 85°C thermal cycling while electrically insulating cells (dielectric strength >15 kV/mm). As electric vehicle adoption accelerates, battery pack designs are shifting from traditional module-based architectures to cell-to-pack (CTP) systems, where adhesives replace up to 70% of mechanical fasteners, reducing pack weight by 15-20% and increasing volumetric energy density by 10-15%.
2. Market Data & Segment Performance (Last 6 Months)
Recent industry data (January–June 2026) reveals explosive growth across adhesive chemistries and vehicle types:
By Type:
Epoxy Adhesive dominates with 48% market share, preferred for structural bonding of battery modules to cooling plates due to high strength (20-35 MPa) and excellent thermal cycling resistance. New one-part heat-cure epoxies have reduced dispensing complexity while achieving 2 W/m·K thermal conductivity.
Silicone Adhesive follows at 22%, favored for thermal interface materials (TIMs) and gap filling due to flexibility (-50°C to 200°C operation) and vibration damping.
Polyurethane (Urethane) holds 18%, offering faster cure times (5-15 minutes) for high-volume assembly lines.
Acrylic Acid Adhesive accounts for 8%, used for dissimilar material bonding (aluminum to steel, plastic to metal).
Others (hybrid formulations, UV-cure) represent 4%.
By Application:
Passenger Car dominates with 84% of revenue, driven by global EV production exceeding 18 million units in 2025. Average adhesive usage per passenger EV battery pack: 3-8 kg.
Commercial Vehicle (buses, trucks, vans) accounts for 16%, with higher per-vehicle consumption (10-20 kg per heavy-duty pack) but lower production volume.
Geographic Note: China leads with 52% market share, followed by Europe (22%) and North America (15%). Chinese domestic adhesive producers have gained share from 30% to 45% over 24 months, driven by local CATL and BYD supply chain integration.
The Power Battery Structural Adhesive market is segmented as below:
By Company: Henkel, Sika, DuPont, H.B. Fuller, Sunstar, Arkema Group, 3M, Unitech, Huntsman, L&L Products, Parker, PPG, Hubei Huitian New Materials, ThreeBond, Comens New Materials, Guangzhou Tinci Materials, Jointas Chemical
Segment by Type: Epoxy Adhesive, Urethane, Acrylic Acid Adhesive, Silicone Adhesive, Others
Segment by Application: Passenger Car, Commercial Vehicle
3. Technical Deep Dive: Thermal Conductivity Fillers, Cure Kinetics & Dispensing
A persistent technical challenge across all power battery structural adhesives is balancing thermal conductivity with electrical insulation—adding thermally conductive fillers (alumina, boron nitride, aluminum nitride) increases conductivity but can reduce dielectric strength and increase viscosity, complicating automated dispensing.
Recent innovations addressing these issues include:
Hybrid filler systems (Henkel, DuPont) combining spherical alumina (for thermal conductivity) with silica (for rheology control), achieving 3.5 W/m·K while maintaining viscosity below 100,000 cP for jet dispensing.
Fast-cure epoxy hardeners (Sika, H.B. Fuller) reducing fixture time from 60 minutes to 8 minutes at 80°C, enabling inline battery assembly without rack storage.
Thermally reversible crosslinkers enabling disassembly for battery repair and recycling—a critical requirement under EU Battery Regulation 2023/1542 mandating repairability by 2027.
Intelligent dispensing systems with real-time viscosity and mix ratio monitoring, reducing adhesive waste by 30% and void formation by 50% in CTP designs.
Exclusive observation: Unlike process manufacturing—where adhesives bond similar materials under controlled conditions—battery structural adhesives operate in a dissimilar material joining environment (aluminum enclosures to nickel-plated steel terminals to copper busbars to plastic cell holders). Each interface requires different adhesion chemistry. Epoxies excel on metals but poorly bond polypropylene cell holders; silicones bond plastics but lack structural strength. The industry is moving toward multi-chemistry dispensing heads that apply different adhesives within the same pack—epoxy for structural bonds, silicone for thermal interfaces, and acrylic for plastic components—a complexity that favors vertically integrated suppliers.
4. Industry Stratification: CTP vs. Module-Based vs. Cylindrical Cell Packs
For battery pack manufacturers evaluating adhesive strategies, requirements differ significantly by pack architecture:
Dimension Cell-to-Pack (CTP) Module-Based Cylindrical Cells (4680, 21700)
Adhesive function Structural + thermal Module-to-cooling plate Cell-to-cell bonding
Adhesive volume per pack 8-15 kg 3-6 kg 4-8 kg
Thermal conductivity requirement 2-4 W/m·K 1-2 W/m·K 1-3 W/m·K
Structural strength requirement High (replaces fasteners) Medium Low-medium
Primary chemistry Epoxy + silicone gap filler Epoxy or urethane Acrylic or urethane
Disassembly requirement Low (CTP difficult to repair) Medium High (cell replacement possible)
CTP designs (CATL, BYD, Tesla structural pack) represent the fastest-growing segment, driving demand for high-strength, high-thermal-conductivity epoxies. Module-based designs (traditional VW, GM, Hyundai) are declining but still represent 60% of current production. Cylindrical cell packs require adhesives that can bond curved surfaces and accommodate cell swelling (5-10% volume change over life).
5. User Case & Policy Update
Case Study – CATL Shenxing Battery (China):
CATL's CTP 3.0 battery pack uses Henkel's epoxy structural adhesive for cell-to-cooling plate bonding. Results:
Pack weight reduced 20% versus bolted design (80 kg savings per 100 kWh pack).
Thermal resistance improved 35% with 3.2 W/m·K adhesive interface.
Assembly time reduced 40% (eliminating 300+ fasteners per pack).
Crash test performance exceeded Chinese GB 38031 standard by 25%.
Case Study – European EV Startup (confidential), Germany:
Using Sika's polyurethane adhesive for cylindrical cell (4680) bonding in a module-less design. Results over 500,000 km durability testing:
No adhesive degradation or bond failure after 1,500 thermal cycles (-30°C to 60°C).
Vibration testing (20g acceleration, 20-2000 Hz) showed zero micro-motion at cell terminals.
Repairability achieved through thermally reversible adhesive—cells replaced in under 2 hours.
Policy Update (June 2026):
EU Battery Regulation (2023/1542) full enforcement begins January 2027, requiring battery repairability and recyclability. Thermally reversible adhesives are now a compliance pathway for CTP designs.
China's GB 38031-2025 (effective July 2026) mandates stricter thermal runaway propagation prevention, driving demand for flame-retardant adhesives (UL 94 V-0 minimum).
US Inflation Reduction Act (IRA) Section 45X manufacturing credits include battery adhesives as eligible "battery components" for domestic content calculation, benefiting US-based production of Henkel, DuPont, and 3M.
UN Global Technical Regulation No. 22 (EV battery safety) now includes adhesive bond durability testing in vibration and thermal cycling protocols.
Contact Us:
If you have any queries regarding this report or if you would like further information, please contact us:
QY Research Inc.
Add: 17890 Castleton Street Suite 369 City of Industry CA 91748 United States
EN: https://www.qyresearch.com
E-mail: global@qyresearch.com
Tel: 001-626-842-1666(US)
JP: https://www.qyresearch.co.jp
About Us：
QYResearch founded in California, USA in 2007, which is a leading global market research and consulting company. Our primary business include market research reports, custom reports, commissioned research, IPO consultancy, business plans, etc. With over 18 years of experience and a dedi…
QYResearch founded in California, USA in 2007, which is a leading global market research and consulting company. Our primary business include market research reports, custom reports, commissioned research, IPO consultancy, business plans, etc. With over 18 years of experience and a dedi…
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