If you need to know about batteries; you’ve come to the right place
Chinese flag点击这里访问我们的中文网站Chinese flag

PNNL

PNNL develops system to prevent lithium-ion ESS fires before they start

Tue, 05/25/2021 - 10:54 -- paul Crompton

A team from the U.S. Department of Energy’s Pacific Northwest National Laboratory has developed a sensor system that can prevent dangerous conditions developing in outdoor lithium-ion battery cabinets. 

Supported by DOE’s Office of Electricity, IntelliVent automatically opens cabinet doors to prevent buildup of flammable gases if it detects smoke, heat, or gas.

The system can be retrofitted into cabinet-style battery enclosures, such as those used in stationary grid energy storage applications. 

Due to limitations of the product standard, the system is not designed to NFPA-69 (Standard on Explosion Prevention Systems). 

Intellivent, which is available for nonexclusive licensing, was designed to work with a variety of sensors.

A 15-month investigation in the US found that dendritic growth had caused cascading thermal runaway, which in turn caused an explosion at a lithium-ion battery storage facility operated by the Arizona Public Service (APS) utility.

The explosion in Surprise, Arizona, on 19 April, 2019, seriously injured four fire fighters. 

Contributing factors into the explosion included no ventilation for flammable ‘off-gasses’.

Bobby Ruiz, the fire chief in Peoria, Arizona, whose firefighters were injured in the explosion, said: "This is absolutely in the right direction. Getting all doors open early before gas buildup will make the incident safer. 

“It will also increase situational awareness by being able to see if the batteries are smoking or are on fire. And, if extinguishment is needed, we can direct the water right at the modules from a safe distance." 

The Snohomish County Public Utility District’s new Arlington Microgrid and Clean Energy Center, in Everett, Washington, will be the first to install the safety technology when it retrofits a 1.2 MW battery with the IntelliVent system.

Image: First caption for “IntelliVent” image: (but feel free to edit and/or just simply give credit to PNNL or Allan Tuan/PNNL) 

Sign-up to our FREE weekly industry newsletter, to get the weeks news delivered to your inbox every Monday.

US lab team ‘develops new compound for redox flow batteries’

Fri, 06/15/2018 - 09:13 -- Xuan Zhong
US lab team ‘develops new compound for redox flow batteries’

Research published by scientists in the US indicates an organic molecule used in dyes and antibiotics “may be the key to less expensive, more efficient redox flow batteries”.

The scientists at the Department of Energy’s (DOE) Pacific Northwest National Laboratory (PNNL) team have developed a “highly reversible, water soluble material based on phenazine”— that could serve as an alternative to vanadium used in grid-scale batteries.

 

Sign-up to our FREE weekly industry newsletter, to get the weeks news delivered to your inbox every Monday.

Battery producer picks up “green chemistry” award

Wed, 06/28/2017 - 16:29 -- News Editor
Battery producer picks up “green chemistry” award

US environmental watchdogs have honoured a company that produces a battery based on technology developed at the US Pacific Northwest National Laboratory (PNNL).

UniEnergy Technologies (UET) received a Green Chemistry Challenge Award from the US Environmental Protection Agency for the firm’s advanced vanadium redox flow battery.

 

Sign-up to our FREE weekly industry newsletter, to get the weeks news delivered to your inbox every Monday.
Subscribe to PNNL