SLD

SLD Series Lithium-Ion Capacitors: A Revolutionary High-Performance Energy Storage Solution

Product Overview

The SLD Series Lithium-Ion Capacitors (LICs) are a new generation of energy storage devices from YMIN, combining the high power characteristics of traditional capacitors with the high energy density of lithium-ion batteries. Designed using a 4.2V high-voltage platform, these products offer an exceptionally long lifespan exceeding 20,000 cycles, excellent high- and low-temperature performance (chargeable at -20°C and dischargeable at +70°C), and ultra-high energy density. Their 15 times higher capacitance than similarly sized capacitors, combined with their ultra-low self-discharge rate and safety and explosion-proof features, make the SLD series an ideal alternative to traditional secondary batteries and fully compliant with RoHS and REACH environmental standards.

Technical Features and Performance Advantages

Excellent Electrochemical Performance

The SLD Series Lithium-Ion Capacitors utilize advanced electrode materials and electrolyte formulations, resulting in a precisely controlled capacitance range of -10% to +30% at 20°C. The products feature extremely low equivalent series resistance (ESR), ranging from 20-500mΩ (depending on the model), ensuring highly efficient energy transmission and power output. Their 72-hour leakage current is only 5μA, demonstrating excellent charge retention.

Excellent Environmental Adaptability

This series of products operates over a wide temperature range of -20°C to +70°C, maintaining stable performance even in extreme environments. After 1000 hours of continuous operating voltage testing at +70°C, the capacity change remained within ±30% of the initial value, and the ESR was no more than four times the initial standard value, demonstrating excellent high-temperature durability and stability.

Extremely Long Service Life

The SLD series lithium-ion capacitors boast a designed life of over 1000 hours and an actual cycle life of over 20,000 cycles, far exceeding traditional secondary batteries. This long life significantly reduces equipment maintenance costs and replacement frequency, ensuring reliable long-term stable operation.

Product Specifications

The SLD series offers 11 capacities ranging from 70F to 1300F, meeting the needs of various application scenarios:

• Compact Design: The smallest size is 8mm diameter x 25mm length (SLD4R2L7060825), with a capacity of 70F and a capacity of 30mAH.

• Large Capacity Model: The largest size is 18mm diameter x 40mm length (SLD4R2L1381840), with a capacity of 1300F and a capacity of 600mAH.

• Full Product Line: Including 100F, 120F, 150F, 200F, 300F, 400F, 500F, 750F, and 1100F.

Applications

E-cigarette Devices

In e-cigarette applications, the SLD series LIC provides instantaneous high power output and fast charging capabilities, significantly improving the user experience. Its safety and explosion-proof features ensure safe use, while its extended lifespan reduces maintenance costs.

Portable Digital Products

For digital products such as smartphones, tablets, and portable audio systems, the SLD series offers faster charging speeds (15 times that of capacitors of the same size) and longer lifespans than traditional batteries, while also offering improved adaptability to high and low temperatures.

Internet of Things Devices

In IoT devices, the ultra-low self-discharge characteristics of LICs ensure that devices retain their charge for extended periods in standby mode, significantly extending their actual operating time and reducing charging frequency.

Emergency Power Systems

As emergency and backup power sources, the SLD series offers fast response and stable output, enabling rapid power support during grid outages.

Automotive Electronic Systems

In automotive start-stop systems and other areas such as in-vehicle electronics, the wide operating temperature range of LICs ensures reliable performance in extreme temperatures, enhancing vehicle reliability.

Technical Advantage Analysis

Energy Density Breakthrough

Compared to traditional electric double-layer capacitors, the SLD series LICs achieve a quantum leap in energy density. They utilize a lithium-ion intercalation mechanism, significantly increasing energy storage capacity per unit volume, enabling more energy to be stored within the same volume.

Excellent Power Characteristics

LIC maintains the high power characteristics of capacitors, enabling rapid charge and discharge to meet instantaneous high current demands. This offers irreplaceable advantages in many applications requiring pulsed power.

Safety Guarantee

Through specialized safety design and material selection, the SLD series features multiple safety protection mechanisms for overcharge, over-discharge, short circuit, and impact, completely eliminating potential safety hazards associated with traditional lithium-ion batteries.

Environmental Characteristics

This product fully complies with international environmental standards, contains no harmful heavy metals or toxic substances, and is highly recyclable, embodying a green and environmentally friendly design philosophy.

Advantages Compared to Traditional Technologies

Compared to Traditional Capacitors

• Energy density increased by over 15 times

• Higher voltage platform (4.2V vs. 2.7V)

• Significantly reduced self-discharge rate

• Significantly increased volumetric energy density

Compared to Li-ion Batteries

• Cycle life extended by over 10 times

• Significantly increased power density

• Significantly improved safety

• Improved high and low temperature performance

• Faster charging speed

Market Prospects and Application Potential

The rapid development of industries such as the Internet of Things, portable devices, and new energy has placed higher demands on energy storage devices. The SLD series lithium-ion capacitors, with their unique performance advantages, demonstrate significant application potential in these areas:

Smart Wearable Device Market

In smart watches, health monitoring devices, and other applications, the small size and high capacity of LICs meet the demands of long-term operation, while their fast charging capabilities enhance the user experience.

New Energy Storage Applications

In applications such as solar and wind energy storage, the long life and high cycle count of LICs can significantly reduce system maintenance costs and improve return on investment.

Industrial Automation

In industrial control and automation equipment, the wide operating temperature characteristics of LICs ensure stable operation in a variety of environmental conditions, improving system reliability.

Technical Support and Service Guarantee

YMIN provides comprehensive technical support and service guarantees for the SLD series products:

• Complete technical documentation and application guides

• Customized solutions

• Comprehensive quality assurance system

• Responsive after-sales service team

Conclusion

The SLD series lithium-ion capacitors represent the latest developments in energy storage technology, successfully addressing the low energy density of traditional capacitors and the low power density and short lifespan of traditional batteries. Their superior overall performance makes them an ideal choice for a wide range of applications, particularly where high power, long life, and high safety are required.

With continuous technological advancements and further cost reductions, the SLD series lithium-ion capacitors are expected to replace traditional energy storage devices in more areas, making a significant contribution to promoting scientific and technological progress and energy transformation. YMIN will continue to be committed to the research and development and innovation of LIC technology, providing customers around the world with higher-quality products and solutions.