SDN

Leading a New Era of Energy Storage: In-Depth Analysis of YMIN's SDN Series High-Performance Electric Double-Layer Supercapacitors

In today's era of pursuing efficient, reliable, and sustainable energy solutions, traditional battery technology is facing bottlenecks in certain demanding application scenarios. Whether it's instantaneous power deficit compensation or stable operation in extreme environments, the market demands an energy storage component capable of rapid charging and discharging, ultra-long lifespan, and safety and environmental friendliness. Against this backdrop, YMIN Electronics, leveraging its profound technological expertise, has launched the SDN series of high-performance electric double-layer supercapacitors, providing a powerful and reliable "power core" for numerous cutting-edge technology fields with its superior performance.

The YMIN SDN series is not an ordinary capacitor product; it is a high-end 2.7V/3.0V junction-wound, high-temperature resistant, automotive-grade electric double-layer supercapacitor. These key features collectively define its unique position in the market.

1. Superior High-Temperature Performance and Ultra-Long Lifespan:

The most significant advantage of the SDN series lies in its outstanding environmental adaptability. The products can operate stably within a wide temperature range of -40℃ to +70℃, and especially guarantee a load lifespan of up to 1000 hours at 85℃. This means that even in high-temperature environments such as engine compartments, SDN double-layer supercapacitors can continuously provide energy with minimal performance degradation. Testing has shown that under such harsh conditions, its capacitance change rate is less than 30% of the initial value, and its internal resistance increase is less than four times the initial value, far exceeding industry standards.

2. Authoritative Certification and Environmental Compliance:

As an "automotive-grade" product, the SDN series strictly adheres to the AEC-Q200 reliability certification standard. This standard is a passport to quality for automotive electronic components, ensuring ultimate reliability under harsh conditions such as vibration, shock, and high/low temperature cycling. Simultaneously, the products fully comply with RoHS and REACH directives, containing no substances harmful to humans and the environment, reflecting YMIN Electronics' environmental responsibility as a responsible company.

3. Perfect Balance Between High Energy Density and High Power Density:

The core value of double-layer supercapacitors lies in their ability to instantly release enormous power. The SDN series achieves a perfect balance between high energy density and high power output through advanced material and structural design. Its extremely low equivalent series resistance (ESR, as low as 2.5mΩ) means minimal energy loss during transmission, enabling extremely high continuous and peak currents (e.g., the 600F model can achieve a peak current of 276.9A). This allows it to meet the explosive power demands of devices during instantaneous startup, acceleration, or handling sudden loads.

4. Ultra-Long Charge-Discharge Cycle Life:

Compared to the typical few thousand cycles of lithium batteries, the lifespan of SDN double-layer supercapacitors is practically "immortal." Under constant current charge-discharge cycle testing between 3.8V and 2.5V at 25°C, the lifespan exceeds 50,000 cycles, with capacitance and internal resistance variations remaining within acceptable ranges. This characteristic significantly reduces the overall lifecycle maintenance cost of the device, making it particularly suitable for applications requiring frequent charging and discharging.

5. Excellent Self-Discharge Characteristics and Fast Charging Capability:

After 8 hours of constant-voltage charging and 24 hours of open-circuit rest, the SDN series retains over 80% of its rated voltage. This low self-discharge rate ensures more efficient energy storage. Simultaneously, its double-layer physical energy storage mechanism allows for second-level or even millisecond-level fast charging, unmatched by any chemical battery.

The superior characteristics of YMIN's SDN series double-layer supercapacitors make them indispensable core components in several key areas.

1. Automotive Electronics: The "Energy Buffer" for Intelligent and New Energy Vehicles

• Start/Stop System: When the vehicle is temporarily stopped, the SDN double-layer supercapacitor can quickly provide the large current required for engine restart, protecting the main battery, extending its lifespan, and ensuring rapid and smooth starting.

• Energy Recovery: During braking, SDN double-layer supercapacitors efficiently and quickly absorb and recover kinetic energy, releasing it instantly during acceleration, contributing to vehicle energy conservation and emission reduction.

• In-vehicle Electronic System Backup: Provides instantaneous power backup for in-vehicle navigation, smart dashboards, and safety systems during power outages, ensuring no data loss and uninterrupted functionality.

2. AI Data Servers and Communication Equipment: Ensuring the "Digital Brain" Never Goes Down

Power fluctuations in data centers and 5G base stations pose a significant challenge. SDN double-layer supercapacitors can serve as instantaneous power protection for critical equipment such as the BBU (Baseband Processing Unit). When the mains power experiences millisecond-level interruptions or fluctuations, it can seamlessly step in immediately, providing stable power to support the system in completing data saving or switching to backup power, effectively preventing data loss and system crashes, and ensuring uninterrupted AI computing and communication.

3. Robots and Drones: The "Power Source" for Agile Motion

The joint actuation of robots and the takeoff and attitude adjustment of drones all require instantaneous bursts of force. The high-power output characteristics of SDN double-layer supercapacitors perfectly meet the peak power requirements of actuators such as motors and servos, enabling faster and more precise movements while reducing the burden on the main power supply.

4. New Energy and Smart Grids: Building a Stable and Efficient Energy Network

• Smart Meters: In smart meters, SDN double-layer supercapacitors can power clock chips and memory during power outages, ensuring the accuracy of critical billing data and time, and supporting the energy required for remote power on/off functions.

• Photovoltaic Inverters and Energy Storage Systems: Used to smooth power fluctuations from photovoltaic panels, improve power quality, and serve as auxiliary power for the inverter's internal circuitry to cope with transient grid failures.

5. Industrial Automation and Military Projects: A Reliable Partner in Extreme Environments

In fields such as motor drives, smart lighting, and security automation, SDN's rapid response and long lifespan reduce maintenance frequency. In military projects, its tolerance to extreme temperatures, high reliability, and long lifespan make it an ideal energy storage choice for high-end equipment such as radar and missile systems.

The YMIN SDN series offers a wide capacitance range from 100F to 600F, with both 2.7V and 3.0V rated voltage options, and various sizes from 22mm×45mm to 35mm×72mm. This refined product matrix allows engineers to flexibly select based on specific space, voltage, capacitance, and current requirements to achieve optimal system design. The clear product numbering system facilitates customer identification and procurement.

Conclusion

The YMIN SDN series double-layer supercapacitors are more than just electronic components; they are enablers for efficient, reliable, and intelligent operation of modern high-tech systems. With their high-temperature resistance, long lifespan, high power, and automotive-grade specifications, they successfully solve pain points in energy storage and release across numerous industries. Choosing YMIN SDN means choosing a future-oriented, more reliable, and more economical energy solution. Whether in speeding cars, high-speed computing servers, or soaring drones, YMIN SDN double-layer supercapacitors are quietly playing their core role, driving innovation and helping the world move steadily forward.