Performance Adaptation: The "New Energy Gene" of Silicone Materials
Silicones, with their unique silicon-oxygen (Si-O) bond structure, demonstrate irreplaceable advantages in the new energy sector. Their bond energy reaches 452 kJ/mol, significantly exceeding that of carbon-carbon bonds (347 kJ/mol). This gives them wide temperature stability, from -50°C to 250°C, making them ideally suited to the temperature fluctuations experienced during lithium battery charging and discharging. Furthermore, silicones boast a surface energy as low as 22 mN/m, effectively reducing interfacial side reactions between electrode materials and electrolytes. In CATL's latest battery system, the cycle life of positive electrode materials coated with silicone coatings is increased by 30%.

Power Batteries: A "Protective Armor" for Core Components
Thermal Conductive Encapsulation: Silicone potting compounds boast a thermal conductivity of 1.5-3.0 W/(m·K). Cured on-site in BYD's Blade Battery modules, they maintain a battery pack temperature gradient of less than 2°C, improving heat dissipation efficiency by 40% compared to traditional epoxy resin solutions. Insulation Protection: Modified silicone rubber insulation sheets with a withstand voltage rating of 10kV/mm are used in Tesla's 4680 battery pack packaging, reducing inter-cell leakage current to below 0.1μA and meeting the UL94 V-0 flame retardancy standard.
Adhesion and Sealing: Single-component dealcoholized silicone rubber is automatically dispensed in Honeycomb Energy's Short Blade batteries. After curing, it achieves a tensile strength of 2.5MPa and a 99.7% airtightness test pass rate, ensuring IP68 protection.
Photovoltaics and Energy Storage: The "Stabilizer" of Clean Energy
In the photovoltaic sector, silicone encapsulant ensures module transmittance remains above 91% (after 25 years of aging). The silicone coating used on the backsheet of double-glass modules has a water vapor transmission rate of less than 0.5g/(m²·day), extending its lifespan by 5-8 years compared to EVA film. In energy storage systems, silicone rubber tubing is used for liquid cooling pipes, offering three times greater resistance to coolant corrosion. This has enabled Sungrow's 1500V energy storage system to achieve zero leakage for over 5,000 hours. Cutting-edge breakthrough: A key driver of solid-state batteries
To address the interfacial impedance issues in solid-state batteries, a Tsinghua University team has developed an organosilicon ion conductor containing lithium salts. Its room-temperature ionic conductivity reaches 1.2×10⁻³S/cm, a two-order-of-magnitude improvement over traditional polymer electrolytes. This material, used in Qingtao Energy's solid-state batteries, has increased capacity retention from 78% to 92% at a 0.5C rate, clearing a key hurdle for the commercialization of solid-state batteries.