With the explosive growth of AI computing demand, the construction logic of intelligent computing data centers (AIDC) is undergoing profound changes. The industry as a whole is rapidly iterating toward high voltage, high density, and high reliability, and 800V high-voltage direct current (HVDC) power supply has thus become the mainstream technology route for next-generation computing infrastructure.

Facing the stringent challenges that computing scenarios impose on backup power systems, COSPOWERS has officially launched two new short-duration backup power products built on an 800V-class high-voltage platform: the CFS80085U immersed lithium battery system and the CNS80050U immersed sodium battery system. Both new products use fully immersed liquid cooling as their core technology foundation, while opening up both lithium and sodium technology routes, breaking away from the limitations of a single technology path in traditional backup power products. Aimed at the real business pain points of short-duration backup power in data centers, they deliver complete system-level solutions that balance high safety, precise temperature control, energy savings and cost reduction, and flexible deployment. Both products have simultaneously passed multiple North American and international authoritative safety and compliance certifications, including UL9540A, UL1973, FCC, and IEC62619, matching global mainstream market access standards from the cell to the system level, and providing domestic and overseas customers with highly reliable backup power options that comply with international norms.

I. CFS80085U Immersed Lithium Battery System

Targeting the rigid demand for highly reliable backup power for core data center operations, the CFS80085U immersed lithium battery system fully leverages the technical advantages of fully immersed liquid cooling to fundamentally avoid the risk of battery thermal runaway. Compared with traditional air-cooled lithium backup power solutions, it achieves all-around upgrades in power density, temperature control consistency, cycle life, and scenario adaptability.

The product fully immerses battery cells in insulating coolant. Through a physical oxygen-barrier protection mechanism, it fundamentally blocks the occurrence of risks such as combustion, explosion, and smoke, while also containing the chain propagation effect of thermal runaway, achieving system-level intrinsic safety. This is also the most core underlying safeguard in high-density deployment environments of intelligent computing rooms. Relying on a full-domain synchronous heat exchange liquid cooling architecture, the system can control the temperature difference of the entire cabinet's cells within 2°C. Excellent temperature uniformity can reduce differences in individual cell degradation and effectively extend overall cycle life. Compared with traditional solutions, it achieves a 3% improvement in system efficiency, helping customers reduce long-term room O&M and energy costs.

At the engineering implementation level, the product adopts a highly integrated modular compact design, effectively reducing equipment footprint. It is also compatible with the industry's mainstream two-wire/three-wire architectures, suitable both for new intelligent computing rooms and for retrofitting existing rooms, greatly shortening the project implementation cycle. In response to the load characteristics of short-duration backup power for computing operations, the system has a 6C continuous discharge capability and can stably support 10–15 minutes of backup power for critical operations, fully meeting the practical needs of uninterrupted operation of core businesses.

II. CNS80050U Immersed Sodium Battery System

During the operation of GPU clusters in intelligent computing centers, power fluctuations are severe. Large-scale batch deployment also imposes higher requirements on the cost, safety, and space utilization of backup power systems. The CNS80050U immersed sodium battery system is precisely built for such scenarios. Also equipped with fully immersed liquid cooling technology, this product systematically addresses hidden thermal runaway risks. Compared with traditional air-cooled sodium, lithium, and lead-acid backup power solutions, it establishes significant competitive advantages in safety protection, temperature consistency, and space utilization efficiency.

Sharing the same safety design approach as the lithium product, the sodium system immerses battery cells in insulating coolant and relies on physical oxygen isolation to achieve flame prevention, explosion prevention, and suppression of thermal runaway propagation. During large-scale cabinet cluster deployment, it can minimize the fire safety pressure of the equipment room. Full-domain liquid cooling heat exchange keeps the cell temperature difference at ≤2°C. A balanced operating temperature delays cell aging and brings longer cycle life. System efficiency is also improved by 3%, optimizing TCO from a full life-cycle perspective.

The modular hardware design reduces equipment footprint, and the hardware interfaces are compatible with two-wire/three-wire power supply architectures, making it highly suitable for large-scale replicated deployment in data centers. Combined with the high-rate characteristics of sodium batteries themselves, the system supports 6C continuous discharge. It can not only provide 10–15 minutes of short-duration backup power to ensure business continuity, but also leverage high-rate fast charging to smooth peak power impacts brought by GPU clusters, balancing both emergency backup power and grid-side peak-valley fluctuation regulation value.

III. Diverse Scenario Adaptability

The two 800V-class lithium/sodium immersed backup power systems can be widely used in computing infrastructure such as intelligent computing centers, supercomputing centers, and cloud data centers. They are compatible with mainstream power supply architectures such as HVDC high-voltage direct current, Panama power supplies, and SST solid-state transformers. At the same time, their capabilities extend outward and can also serve professional industrial power supply scenarios such as high-end manufacturing and rail transit, achieving cross-industry reuse between computing and industrial fields.

In the computing era, energy storage comes first. The continuous expansion of computing infrastructure cannot be separated from the support of a highly safe energy storage and backup power foundation. COSPOWERS continues to gain insight into the real pain points of the industry from a product perspective. It does not limit itself to stacking single parameter indicators, but instead, through the layout of dual lithium and sodium technology routes, uses technological innovation to deliver safe, efficient, and economically competitive energy storage and backup power products, continuously empowering the high-quality development of the global data center industry.