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Molicel Unveils the S Series: The Future of Battery Technology for Data Security

On May 9, 2025, Molicel introduced its innovative S Series batteries at the International Battery Seminar and Exhibit 2025. This highly anticipated launch focuses on providing unyielding safety and performance for backup battery units (BBU), data centers, and artificial intelligence (AI) computing. The S Series sets a new benchmark in battery technology, delivering exceptional reliability and longevity.

High-Power Format Specifications

The S Series encompasses two principal formats: the compact 18650 and the larger 21700. In the 18650 category, Molicel offers:

• - INR-18650-P22S: This battery achieves a maximum output of 100W with a peak discharge current of 36A.
• - INR-18650-P30S: It elevates the standard further with 160W output and 54A capacity.

For the 21700 format, the flagship model is the INR-21700-P50S, boasting an impressive output of up to 200W and a maximum current of 100A. These specifications underline Molicel's commitment to providing reliable and high-performance power solutions for modern computational demands.

Cutting-Edge Safety Features

Designed with a focus on enhanced safety, the S Series cells are optimized for minimal flammability, vital for high-energy environments like data centers. With over 1.5 minutes of backup time and a retention period exceeding six years, these batteries are engineered to meet the rigorous safety standards demanded in critical infrastructure.

In addition to their formidable performance specs, the S Series incorporates advanced technologies to achieve low internal resistance (13 mΩ). This facilitates stable performance even under extreme temperature conditions, ranging from 35°C to 45°C, whether in standby or active modes.

Aligning with Industry Standards

The S Series batteries have been tailored to comply with the Open Compute Project (OCP) Open Rack Standards, specifically developed for 48V-54V systems, ensuring that they can seamlessly integrate into high-performance server environments. As power consumption in AI computations surges, the need for robust BBU solutions is more critical than ever. Molicel's advanced offerings are expected to play a pivotal role in the evolving landscape, promoting broader adoption and standardization among server technologies.

Pioneering Research and Development

Molicel recognizes the paramount importance of safety in battery design. Thus, significant resources are allocated to controlling thermal behavior, a critical element for battery packs where safety is non-negotiable. The company's ongoing R&D initiatives focus on enhancing thermal stability and minimizing gas release during operation. By implementing high thermal stability separators, Molicel effectively manages gas evolution risks, marking the S Series as a leading option in both reliability and safety.

Commitment to Innovation

"The S Series reflects Molicel's steadfast dedication to developing battery technologies with unmatched reliability and performance, especially in vital applications such as BBUs and data centers," said Casey Shiue, President of Molicel. "Our ultra-high-power cells, presented in both the 18650 and 21700 formats, are not only optimized for top-tier performance but also offer superior safety assurances."

Molicel remains dedicated to continuous research and enhancement, ensuring that their innovations meet the evolving demands for safety, efficiency, and sustainability. This commitment keeps them at the forefront of the competitive battery industry, positioning them as a preferred choice among major global manufacturers.

About Molicel

Founded in 1998, Molicel is a leading global manufacturer of high-performance lithium-ion rechargeable batteries. With over 40 years of cumulative expertise in lithium-ion technology, Molicel specializes in providing cylindrical cells with optimized power characteristics, marked by high discharge capacity and quick charging capabilities. The company serves a diverse range of high-tech applications, ranging from automotive to aerospace, and is part of the TCC Group Holdings, making it a pioneer in the energy sector.