New energy solutions

Circuit boards used in the new energy sector (including electric vehicles, photovoltaics, energy storage, charging piles, etc.) operate for long periods in harsh environments such as high voltage, wide temperature ranges, high humidity, and strong vibration. Their conformal coating protection and soldering quality directly determine equipment reliability and service life.In response to core industry pain points, our company provides one-stop solutions based on our core products — conformal coatings and fluxes — to precisely solve industry challenges such as protection failure and poor soldering, supporting stable and long-term operation of new energy equipment.

I. Core Pain Points of New Energy Circuit Boards and Corresponding Solutions

(I) Conformal Coating Pain Points: Prone to Failure in Extreme Environments, Difficulty Balancing Insulation and Heat Dissipation

Most new energy circuit boards are exposed to outdoor environments, engine cabins and other scenarios, and are susceptible to salt spray, condensation, wide-temperature shock, UV aging, electromagnetic interference and other factors. These can cause conformal coating cracking and peeling, insulation failure, and solder joint oxidation, leading to equipment malfunctions.Our conformal coating products provide targeted breakthroughs for the above pain points:

1. Extreme environment resistance:

2. Adopting high-temperature-resistant and anti-corrosion formulations, they can withstand wide temperature cycles from -40°C to over 150°C, effectively resist erosion from salt spray, sulfides and battery electrolytes, prevent solder joint oxidation and metal migration, and are suitable for harsh scenarios such as coastal charging piles and wind turbine nacelles.They also feature excellent UV aging resistance, with no yellowing or failure under long-term sunlight exposure, meeting the long-term protection requirements of photovoltaic inverters and outdoor charging piles.

3. Balancing insulation and heat dissipation:

4. The optimized coating formula combines high dielectric strength with good thermal conductivity. It not only meets creepage and breakdown protection requirements for high-voltage systems, but also quickly dissipates heat from circuit boards, avoiding the problems of insufficient heat dissipation from overly thick coatings or inadequate protection from overly thin ones. This makes them ideal for high-voltage applications such as energy storage BMS and automotive control boards.

5. Adaptability to complex processesThe coating features excellent fluidity, penetrating component gaps on high-density and special-shaped circuit boards, achieving bubble-free, full-coverage application via spraying or dip coating. High curing efficiency reduces consistency issues in mass production and lowers the risk of local failure.

(II) Flux Soldering Pain Points: Susceptible to Cold Solder Joints, Poor Oxidation Resistance, Insufficient Adaptability

Soldering of new energy circuit boards must withstand high voltage, high current and strong vibration. Traditional fluxes often result in cold solder joints, solder bridging and oxidation, and struggle to adapt to thick copper substrates and precision component soldering. Long-term use can lead to solder joint fracture from vibration, affecting the stability of electrical conduction.Our flux products provide targeted solutions:

1. Improved soldering reliability:

2. Using high-activity formulations, they effectively remove oxide layers from pads and pins, forming uniform and dense solder joints after soldering and reducing the probability of cold joints and bridging.The solder joints also offer strong oxidation and corrosion resistance, avoiding failure from long-term oxidation and meeting the 10–20 year service life requirements of new energy equipment.

3. Adaptability to demanding soldering scenarios:

4. Compatible with complex soldering needs such as thick copper substrates, precision ICs and special-shaped pins. They leave low, non-corrosive residues after soldering without affecting circuit board insulation performance, meeting soldering standards for high-voltage, high-current circuit boards in automotive and energy storage applications. They also support automated soldering processes to improve production efficiency.

5. Environmental friendliness and compatibility:

6. Adopting environmentally friendly lead-free formulations that comply with industry environmental standards, they are fully compatible with our conformal coatings. No delamination or peeling occurs when conformal coating is applied after soldering, forming an integrated “soldering + protection” system and reducing risks in process connection.

II. Core Advantages of the Solution

1. Precise adaptation:

2. Focused on segmented new energy scenarios, we offer dedicated models of conformal coatings and fluxes for applications ranging from the strong vibration and high-voltage protection of automotive control boards to the outdoor weather resistance requirements of photovoltaic inverters.As resin is the core raw material, our company has a professional resin R&D team that can synthesize and modify polymer resins for conformal coating and flux systems based on performance requirements, solving scenario-specific pain points in a targeted manner.

3. Reliable quality:

4. Products have passed rigorous environmental testing and comply with industry standards for automotive, photovoltaic and energy storage applications. They balance long service life, high reliability and cost-effectiveness, helping enterprises reduce equipment maintenance costs and failure risks.

5. One-stop serviceBacked by a professional technical team, we provide customized services including product selection and process optimization according to customers’ circuit board specifications and application scenarios, ensuring consistent soldering and protection performance throughout production and helping customers enhance product competitiveness.

In the future, our company will continue to deepen its presence in the new energy sector, iteratively upgrading conformal coating and flux products. With solutions more closely aligned with industry needs, we will address circuit board protection and soldering pain points, safeguarding the stable operation of new energy equipment.