As automobiles shift from traditional fuel power to electrification and intelligence, the requirements for core materials in a new energy vehicle (NEV) have undergone earth-shaking changes. Compared to traditional cars, an NEV uses nearly 8 times the amount of silicone materials (reaching up to 20 kg per vehicle). Amidst this automotive industrial revolution, sealants, thermally conductive adhesives, and potting compounds based on modified silicone oil are playing the role of a "green sealer," comprehensively safeguarding the heart and brain of new energy vehicles.

1. The "Safety Fortress" for Power Batteries

The power battery is the most core and expensive component of a new energy vehicle. Batteries generate a significant amount of heat during charging and discharging, and they have extremely high requirements for waterproofing and dustproofing. At this moment, thermally conductive potting compounds containing specialty vinyl silicone oil become the "personal bodyguard" for the battery pack.

This specialty silicone oil compound boasts excellent fluidity, allowing it to perfectly fill the tiny gaps between battery cells or at the bottom of the battery pack, efficiently conducting heat away and preventing thermal runaway caused by overheating. Meanwhile, once cured, the silicone oil compound forms an indestructible elastic sealing layer. Even if the vehicle encounters heavy rain wading or undercarriage impacts, it ensures the battery pack remains completely watertight. It truly achieves both "cooling down" and "waterproofing," nipping safety hazards in the bud.

2. The "Shockproof Armor" for Smart Chips

A modern new energy vehicle is more like a "supercomputer on wheels," packed with various sensors, radars, and autonomous driving control chips. These precision electronic components are most vulnerable to moisture, dust, and the intense vibrations encountered during driving.

With its extremely low volatile content, outstanding electrical insulation, and resistance to both high and low temperatures, electronic-grade silicone oil has become the material of choice for chip packaging and potting. It acts as a flexible "invisible armor," tightly wrapping fragile circuit boards. It not only isolates them from the erosion of the external environment but also effectively absorbs and buffers the mechanical vibrations produced when the vehicle travels on bumpy roads. This ensures the car's intelligent systems can operate with zero faults and stability, whether in the bitter cold of -40°C or next to an engine compartment reaching 150°C.

3. The Green Mission Towards Carbon Neutrality

Beyond enhancing performance and safety, silicone oil is also aiding the automotive industry in achieving its "dual carbon" goals. With technological iterations, bio-based silicone oils produced from biomass raw materials are gradually moving towards mass production, significantly reducing the carbon footprint across the material's entire lifecycle. Simultaneously, temperature-sensitive silicone oils with self-healing capabilities are also under research and development. In the future, when a sealant develops tiny cracks, it will be able to heal itself automatically, further reducing resource waste. From safeguarding battery safety to escorting intelligent driving, silicone oil is injecting a continuous stream of green momentum into the new energy vehicle industry in China and across the globe through the power of technology.


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