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YMIN SM Series Double-Layer Supercapacitors: Leading the Future of High-Power Energy

In today's rapidly evolving energy technology landscape, our expectations for energy storage devices have expanded beyond mere "storage" to include "efficient, rapid, and reliable release." While traditional batteries excel in energy density, power density and cycle life often become their bottlenecks. It is against this backdrop that the YMIN SM series double-layer supercapacitors were developed. Not intended to replace batteries, they serve as a high-performance complementary energy solution, offering exceptional high power output, lightning-fast charge and discharge speeds, and near-infinite cycle life, making them an indispensable "power engine" and "energy buffer" in numerous demanding applications.

The superior performance of the YMIN SM series double-layer supercapacitors stems from meticulous craftsmanship in both materials and structure.

• Epoxy Resin Sealing Technology: The product employs advanced epoxy resin encapsulation technology, ensuring complete sealing of the internal electrodes and electrolyte. This design not only effectively resists the corrosive effects of external environments such as humidity and dust, significantly improving the long-term stability and reliability of the product under complex operating conditions, but also enhances the overall mechanical strength, ensuring the stable operation of the double-layer supercapacitor under vibration and shock environments.

• Optimized Internal Series Structure: To achieve higher rated voltages (such as the 60V mentioned in the document), the SM series employs an optimized series structure within each individual capacitor. This design reduces the increase in size and impedance caused by externally connected multiple individual capacitors, allowing the product to directly meet the application requirements of higher voltage platforms while maintaining a compact size, simplifying system design.

• Carefully Selected Electrode Materials and Electrolytes: By using activated carbon electrodes with high specific surface area and electrolytes with low internal resistance and high stability, the SM series double-layer supercapacitors achieve an optimal balance in key parameters such as capacitance, internal resistance (ESR), and leakage current, laying the core material foundation for achieving the ultimate goal of "high energy, high power, and long lifespan."

The SM series double-layer supercapacitors clearly demonstrate the technical parameters of the core strengths expected of an industrial-grade product.

• Wide operating temperature range (-40℃ ~ +70℃): This characteristic enables the SM series products to handle extreme environments with ease. Whether in the harsh winter outdoors of the north, in the sweltering summer enclosed equipment enclosures of the south, or near self-heating equipment in industrial environments, it can operate stably, demonstrating extremely strong environmental adaptability.

• Low internal resistance and long cycle life: Low equivalent series resistance (ESR) is key to the high-power, fast charge and discharge capabilities of double-layer supercapacitors. The low internal resistance of the SM series means less energy loss, less heat generation, and higher efficiency during charge and discharge. More importantly, the extremely low loss results in an exceptionally long lifespan. Testing shows that after continuously applying the rated voltage for 1000 hours at +70℃, its capacity change rate remains within ±30% of the initial value, and the internal resistance increase is less than four times the initial standard. This means that in practical applications, it can withstand hundreds of thousands or even millions of charge-discharge cycles with minimal performance degradation, far exceeding any traditional battery.

• Stable Temperature Characteristics and High Reliability: Technical parameters show that at +70℃, its capacity change does not exceed 30% of that at room temperature, and its internal resistance still meets the specifications; even under extremely cold conditions of -40℃, the capacity retention rate is over 60%. This excellent temperature stability ensures the consistent performance and reliability of the application system under various climatic conditions.

The characteristics of the YMIN SM series double-layer supercapacitor determine its irreplaceable value in many fields.

1. "High-Efficiency Recycling Station" for Energy Recovery Systems: In regenerative braking systems of electric vehicles and rail transit, huge peak power is generated instantaneously during braking, which traditional batteries cannot effectively absorb. The SM series double-layer supercapacitor can efficiently capture this wasted kinetic energy and quickly store it for subsequent vehicle acceleration, significantly improving energy utilization efficiency and extending driving range.

2. "Instantaneous Power Pump" for Peak Power Assist: In industrial fields, equipment such as large gantry cranes, port cranes, and CNC punch presses require short-term high-current discharge during startup or instantaneous operation, which can cause a huge impact on the power grid or main battery. Connecting the SM series in parallel with the main power supply allows for the instantaneous release of massive power when needed, meeting peak demand and thus "peak shaving and valley filling," protecting the main power system and extending its lifespan.

3. "Never-ending memory chip" for smart meters: In smart grids, smart meters need to provide high instantaneous power for data reading, writing, or communication, while simultaneously completing final data storage during power outages. The rapid charging and discharging and long lifespan characteristics of double-layer supercapacitors perfectly replace traditional battery solutions, ensuring foolproof data storage and requiring virtually no maintenance throughout the meter's lifespan.

4. "Miniature energy tank" for consumer electronics and the Internet of Things: In IoT devices such as smart locks, smart water meters, and GPS trackers, the small-size, high-capacity SM series products (e.g., 0.5F to 5F specifications) can serve as backup power during main power outages, ensuring critical data is not lost and enabling a final communication. Its fast-charging characteristics are also suitable for devices requiring instantaneous high brightness, such as LED flashlights and portable speakers.

5. A "Stable Cornerstone" for New Energy and Military Industries: In renewable energy systems such as wind power generation and solar streetlights, double-layer supercapacitors smooth unstable power output and compensate for instantaneous voltage drops. In the military field, their wide temperature range, high reliability, and long lifespan make them ideal pulse power sources and backup power supplies for critical equipment such as submarines, armored vehicles, and communication equipment, providing stable energy support for national defense security.

YMIN deeply understands that standardized products may not meet the unique needs of all customers. Therefore, the SM series double-layer supercapacitors offer flexible customization services. Whether it's a specific capacitance value, voltage level, size and shape, or special lead wiring methods and internal resistance requirements, YMIN's technical team can conduct targeted development and optimization based on the customer's specific application scenarios and performance requirements, truly achieving "tailor-made" solutions and helping customers create the most competitive end products in the market.

Conclusion: Partnering with YMIN, Empowering Future Energy Innovation

The YMIN SM series double-layer supercapacitor is not just an electronic component, but a strategic partner for building efficient, reliable, and forward-looking energy systems. With its robust craftsmanship, superior parameters, and wide application adaptability, it perfectly embodies the high standards that modern industry demands for energy storage components. Choosing YMIN means choosing leading technology, reliable quality, and attentive service. Let us join hands and, together with the powerful "precision engine" of the SM series double-layer supercapacitor, drive your innovative ideas and inject continuous and strong momentum into the efficient use of energy and green sustainable development worldwide.