Haixing Co., Ltd. — Ultra-High Voltage Electrode Foil

StrawberryIce · 2026-02-25T05:40:36+00:00

Ultra-high voltage electrode foil is an important material for AI server power supply systems, supporting high-voltage aluminum electrolytic capacitors to ensure stable operation of the equipment. Its high specific surface area and process optimization enhance capacitor performance and meet miniaturization requirements. Domestic manufacturers such as Haixing Co., Ltd. and Dongyangguang are actively布局, promoting technological localization and collaborative development.

StrawberryIce

2026-02-25 05:40:36

Abstract generation in progress

Ultra-high voltage electrode foil is one of the key materials in AI server power supply systems, playing a central role in ensuring high-power, high-stability power delivery. As AI chip power consumption continues to rise (e.g., NVIDIA GB300 single-card TDP reaching 1.4kW), traditional power solutions struggle to handle transient current surges, relying instead on high-performance capacitors for peak regulation and filtering. Ultra-high voltage electrode foil is the “heart” material of these capacitors. [Taogu Ba]

Core Role of Ultra-High Voltage Electrode Foil

Support high-voltage capacitors, compatible with AI server power architecture
Ultra-high voltage electrode foil (operating voltage typically 600Vf–1100Vf) is used to manufacture high-voltage aluminum electrolytic capacitors, capable of withstanding high voltage fluctuations and transient load changes in AI server power modules, ensuring stable operation of GPUs, CPUs, and other core components.
Improve capacitance density and reliability
Through corrosion expansion and anodization processes, ultra-high voltage electrode foil features a very high surface area and dense oxide film (Al₂O₃), directly determining the capacitor’s capacity density, lifespan, and leakage current performance. It is the most technically advanced and value-added part of the process.
Meet miniaturization and high integration needs
With limited space in AI server cabinets, capacitors need to achieve higher energy storage in smaller volumes. Ultra-high voltage electrode foil, through material optimization and process upgrades, helps capacitors realize the goals of “high capacity, low ESR, and miniaturization.”

Accelerated Domestic Substitution and Deep Collaboration with Leading Manufacturers

Haixing Co., Ltd.: Full range coverage, positioning in the AI track
Mainly produces capacitor foils, covering low, medium, and ultra-high voltage series. In 2024, they will launch a 1.6 billion yuan high-performance electrode foil project in Xinjiang, planning to build 80 production lines dedicated to AI servers and new energy vehicles. Products have entered Jianghai Co., Ltd.'s supply chain, used for aluminum electrolytic capacitors and supercapacitor systems supporting NVIDIA GB300 cabinets.
Dongyangguang: Layout of next-generation stacked foils
Jointly developed stacked foils with Japan Toyo Aluminum, holding exclusive global patents. Capable of reducing capacitor size by over 30%, suitable for high-density power supplies in AI servers. Independently developed matching electrolytes and manufacturing processes, achieving large-scale industrialization of stacked foil capacitors.

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