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Friday, December 3, 2021

Data center UPS: how to make Li-ion the safe choice - DatacenterDynamics

Last updated Tuesday, October 19, 2021 03:01 ET , Source: NewsService

In the event of a supply outage, backup batteries keep the data center operating until the UPS shifts to an alternative power source – often a diesel generator. Battery reliability and performance are crucial to avoiding serious damage to the business and its reputation. With their well-established advantages over lead-acid batteries, Li-ion battery systems make sense in this vital role.

Li-ion is more reliable and offers higher power than lead-acid batteries. Its total cost of ownership (TCO) is lower, thanks to a combination of longer calendar life, minimal maintenance needs, high energy efficiency, and tolerance of higher temperatures. Less demand on cooling systems means lower electricity consumption and related CO2 emissions. In addition, higher power and energy density mean that Li-ion batteries are also much smaller and lighter – saving on space and structural support in buildings.

‘Li-ion’ is actually an umbrella term for a whole family of batteries whose electrochemistry varies hugely. Choosing the right chemistry and battery system design for each application is the key to achieving the optimum characteristics. For data centers, these must include maximum safety.

Avoiding thermal runaway

High-profile thermal runaway incidents have raised awareness of potential safety risks with some breeds of Li-ion batteries. For example, TV presenter Richard Hammond’s escape from a burning supercar when filming for Amazon’s The Grand Tour in 2017 and an Arizona battery energy...



Read Full Story: https://www.datacenterdynamics.com/en/opinions/data-center-ups-how-to-make-li-ion-the-safe-choice/

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