with older battery chemistries. Tweaks in the chemistry and the design of the over- all battery have led to increased energy densities. Although earlier in the devel- opmental
cycle when compared with
lithium ion batteries, lithium air batteries are being studied as a means of achieving the next leaps in energy density.
One innovative application of lithium ion batteries, developed by the U.S. Army’s Natick Soldier Research, Development, and Engineering Center (NSRDEC), Natick, MA, in conjunction with the Communications-Electronics
Research, Development, and Engineering Center
(CERDEC), Aberdeen Proving Ground, MD, is the Soldier Conformal Battery— a thin battery design engineered to align with the contours of Soldier-worn body armor plates. The concept with this application is to increase Soldier mobility and agility by distributing weight around a Soldier’s core, thus freeing up space and weight for other essential Soldier gear such as
ics and ammunition. (See related article, Page 12.)
The Soldier Conformal Battery, which weighs less than three pounds and generates up to 16.8 volts over its use
cycle,
is
guided weight distribution.
Also, using lithium ion technology, the Army S&T community improved the energy density of
the battery for
its widely used handheld, multiband radio,
the AN/PRC-148 Multiband electron-
Inter/Intra Team Radio; the effort was able to shrink the BA 5590/U military battery to about one-half its former size, weight, and volume while preserving the same amount of power generation.
NSRDEC is also working on high-tech, next-generation concepts
aimed at
MANAGING THE SOLDIER’S LOAD The Army’s science and technology community is trying to lighten the Soldier’s load with modular, renewable power solutions. The idea is to increase mobility and agility by distributing weight around a Soldier’s core. Here, SSG James Wardle (left) and 2LT Raymond Vetter of Task Force 1-71, 172nd Infantry Brigade provide security during a dismounted patrol outside of Forward Operating Base Curry, Paktika Province, Afghanistan, Sept. 20, 2011. (U.S. Army photo.)
by
the concept of
ASC.ARMY.MIL
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SCIENCE & TECHNOLOGY
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