With the of the global energy crisis, silicone rubber has demonstrated significant potential in energy storage and conversion fields due to its unique chemical stability and mechanical properties. Through molecular design and functional modification, silicone rubber is becoming a key material for lithium-ion batteries, supercapacitors, and solar energy devices.

1. Development of All-Solid-State Electrolytes

Traditional liquid electrolytes pose risks of leakage and flammability. In contrast, silicone rubber-based solid electrolytes construct ion-conduction networks by incorporating lithium salts (e.g., LiTFSI) and nano-fillers (e.g., TiO₂). For example, a silicone rubber electrolyte containing 15 wt% LiTFSI exhibits a room-temperature ionic conductivity of 1.2×10⁻⁴ S/cm and an elongation at break of 300%, making it suitable for flexible lithium-metal batteries. Experiments show that the battery retains 92% of its capacity after 1000 cycles in the temperature range of -20°C to 80°C.

2. Electrode Materials for Supercapacitors

By combining silicone rubber with conductive carbon materials (e.g., graphene, activated carbon), high-specific-surface-area electrodes are fabricated. When the graphene content is 8 wt%, the composite material achieves a specific capacitance of 250 F/g and a cycling stability exceeding 5000 cycles. These flexible electrodes can be integrated into wearable devices to enable efficient conversion of mechanical energy to electrical energy.

3. Encapsulation Materials for Solar Cells

The high light transmittance (>95%) and UV aging resistance of silicone rubber make it an ideal encapsulation material for solar cells. By adding hindered amine light stabilizers (HALS), the UV aging life of silicone rubber is extended to over 15 years, surpassing traditional EVA encapsulation materials. This technology has been applied to photovoltaic modules, improving power generation efficiency by 5%-8%.


High Temperature Resistance Silicone Rubber