Aluminum electrolytic capacitors, as key energy storage components in power electronic systems, 

continue to drive performance breakthroughs through material innovation and process upgrades. The

 current mainstream product material system composition and technological progress are as follows:

1. Anodic aluminum foil: precise control of dielectric layer

Using 6N grade (99.9999%) ultra-high purity aluminum foil, a three-dimensional honeycomb like pore 

structure is formed through a stepped electrochemical corrosion process (porosity increased to 80%+),

 and the thickness of the empowered γ - type Al ₂ O ∝ dielectric layer can be precisely controlled to

 5-200nm (corresponding to a withstand voltage of 6-630V). In 2024, the industry will introduce

 atomic layer deposition (ALD) assisted technology to reduce the uniformity error of the dielectric 

layer from ± 15% to ± 5%, significantly improving the reliability of high-voltage capacitors.

2. Electrolyte System: Accelerated Solid State Transformation

The traditional liquid system is based on quaternary ammonium salt - γ - butyrolactone and achieves 

a lifespan of 85 ℃/5000 hours by adding corrosion inhibitors such as nitrobenzimidazole. By 2025,

 the market share of polypyrrole (PPy)/PEDOT conductive polymer solid electrolytes has reached 32%

 (according to TechInsights data), with an ion conductivity exceeding 10S/cm, supporting extreme 

working conditions of -55 ℃~150 ℃, and an ESR reduced by 60% compared to liquid systems.

3. Cathode aluminum foil: surface engineering innovation

Using polished annealed aluminum foil (surface roughness ≤ 0.2 μ m), a hydroxylated surface is 

generated through plasma activation treatment, reducing the electrolyte infiltration angle from 75 ° 

to 15 ° and increasing the cathode equivalent area by three times. Japanese manufacturers have 

achieved aluminum nitride (AlN) ceramic coated cathodes that can maintain ESR stability at 200 ℃.

4. Packaging structure: Intelligent protection upgrade

The composite rubber plug (EPDM+fluororubber) achieves IP67 dust and water resistance, and the 

heat dissipation coefficient of the laser welded aluminum shell is increased to 15W/m · K. The pressure

 temperature dual control safety valve integrated MEMS sensor, which will be standard in 2025, can

 trigger pressure relief 30ms in advance, reducing the accident rate by 90% compared to traditional 

mechanical valves.

Application scenario expansion: In the fields of new energy vehicle 800V platform (supporting silicon

 carbide inverter), 5G base station GaN RF power supply, etc., aluminum electrolytic capacitors can

 achieve a 40% reduction in volume and an increase in power density to 2.5mF/cm ³ through material 

iteration. The global market size is expected to reach 8.2 billion US dollars by 2025 (CAGR 6.8%).

About Us

Guangdong Fulong Electronic Technology Co., Ltd. is a private high-tech enterprise specializing in the research and development, manufacturing, and sales of aluminum electrolytic capacitors, certified by IATF16949，ISO9001, ISO14001, and ISO45001. The company has a building area of 17000 square meters and more than 50 automated production lines; The total investment is 50 million yuan (RMB), with more than 100 employees, including more than 20 engineering and technical, quality management, and production management personnel. The annual production of capacitors (4 * 5.4~16 * 21.5) is about 400 million pieces; Our products are mainly sold to domestic and international markets, and we strive to promote our company's products globally.

Jiangxi Fulong Electronic Technology Co., Ltd. is a wholly-owned subsidiary of Guangdong Fulong Electronic Technology Co., Ltd. established in Hukou County, Jiangxi Province with a total investment of 500 million yuan. It has 50 fully automated production lines and an annual output of approximately 1.2 billion capacitors (4 * 5.4~16 * 21.5).

Fulong Group has an international professional core technology research and development team for aluminum electrolytic capacitors and a global sales network. Rich experience in the design, research and development, and production management of aluminum electrolytic capacitors. The R&D team follows the technical design theory of aluminum electrolytic capacitors, complies with international and domestic legal and regulatory requirements (RoHs), and adheres to the highest international quality standards

Fulong Group has high-quality and stable raw material supply partners, and key raw materials (such as aluminum foil, electrolytic paper, etc.) are selected from well-known Japanese and Korean companies (KJCC KDKNKK, etc.), ensuring reliable and stable advantages in product quality, environmental protection, safety, and energy conservation.

Fulong Group has a group of highly qualified professional technicians and management personnel who can produce various series of sheet aluminum electrolysis products according to customer requirements. The products include high-frequency low impedance, low leakage, wide temperature, extremely low impedance, non-polar, ultra long life, medium high voltage long life, high reliability and other new types of special requirements for surface mount products; At the same time, the company's products can withstand a soldering temperature of 260 ℃, meeting the lead-free reflow soldering technology required for SMT in the whole machine factory. All technical indicators of the products have reached or exceeded the international level of similar products.

While strengthening management and expanding operational scale, Fulong Group is also committed to improving its competitiveness and customer satisfaction, continuously and steadily increasing customer and social trust, continuously meeting market demand, further optimizing environmental management and expanding social contributions, and developing together with the electronics industry.

Guangdong Follon Electronic Technology Co., Ltd.

Jiangxi Follon Electronic Technology Co., Ltd.

Address: Building 3, South District, Haishan Science and Technology Park, Hukou County, Jiujiang City, Jiangxi Province

www.follon.com

Professional manufacturer of high-quality surface mount electrolytic capacitors