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Australia's defense technology (DST) group is a national research institution that USES science and technology to safeguard national security and interests.Recently, defense technology expert Kane Avery began to build a DSTG lithium ion battery safety research facility.
Avery and his colleagues at DST have been working on the facility for years, and they have worked closely with experts at the us navy's surface warfare center.
Australia's existing "Collins" submarines are powered by diesel engines and lead-acid batteries.Lithium-ion batteries are the type of power used in the future of conventional submarine plans in many naval powers.Lithium ion battery, can improve the endurance of submarine (especially in the sprint speed), energy efficiency and operating life, but the technology also brings new security risks, mainly for lithium ion battery electrolyte flammable.
To provide scientific advice to the royal Australian navy, DST began researching lithium ion technology and began designing and building a world-class battery safety research facility several years ago.
The initial tests began last year, mainly in a commercially customized room."This room has an impressive security features of the equipment and instruments, including electricity, temperature and heat flux sensor, infrared imaging, and a set of integrated gas analysis system for real-time calorimeter and exhaust system," Avery explains.
"We and the characteristic of lithium ion battery performance to a large amount of safety testing, including determine the failure condition of the most unfavorable conditions, determine the fault information, the specific research how to develop the system design effectively relieve the loss of the event of a failure."
The impact of lithium ion failures observed in commercial applications highlights the importance of in-depth research in this field.In the military field, especially the special operating environment of submarine has unique requirements for batteries, which increases the complexity of lithium ion battery research. Existing literature research conclusions may not be applicable.
Mr Avery says that DST's lithium-ion battery safety research facility is already close to being fully operational.The facility will allow researchers to conduct in-depth studies in a number of areas, including the impact of different battery charging states, and the difference between aging batteries and new batteries when they fail.
"This research will help to better understand the potential problems of lithium-ion batteries.In the future, if the lithium-ion battery design needs to be evaluated, DST will be able to provide scientific and objective advice for the navy, "said Avery.