FIRST
DRAFT OF IEEE MOBILE COMPUTER BATTERY STANDARD IS COMPLETED
IEEE
P1625 Adopts Systems Approach to Reliability in the Next Generation
of Lithium-Ion Batteries
Contact:
Jeff Layton, Working Group Chair
+1 512-728-1192, jeff_layton@dell.com
or
Karen McCabe, IEEE Marketing Manager
+1 732-562-3824, k.mccabe@ieee.org
For Release:
Immediate
PISCATAWAY,
N.J., USA, 27 August 2003
The first full draft of a new standard for mobile computer batteries
has been completed and is circulating for comment among the companies
that created it. The standard, IEEE
P1625(TM), "Standard for Rechargeable Batteries for Mobile
Computers," takes a systems approach to improve the reliability
of the next generation of rechargeable lithium-ion and lithium-ion
polymer batteries.
Once all comments
are incorporated, it is expected that a revised draft will undergo
broader industry review in October. The standard is targeted for
completion in the first half of 2004. A copy of the current draft
standard will go on sale in mid September at http://shop.ieee.org/store/.
The IEEE P1625
effort arose because changes in notebook and handheld computers
are placing ever greater demands on their batteries. These demands
include the need for more power and greater energy density and
the ability to withstand more frequent charge-discharge cycles.
It also includes the ability to tolerate usage styles that can
cause higher operating temperatures and exposure to mechanical
shock, vibration and other stresses.
"Other
battery standards tend to emphasize the cell or the pack,"
says Jeff Layton, IEEE 1625 Working Group Chair. "This will
be the first standard that seeks to improve user experience by
addressing the entire system from individual cells to the overall
device. This approach makes a lot of sense because the interactions
between the battery cell, battery pack, and computer require a
close look at the operating envelope for all elements alone and
in concert.
"IEEE
1625 will be a voluntary standard that specifies minimum guidelines
for the design, validation, manufacture and testing of battery
cells and packs and the computer. It will address such areas as
qualification, manufacturing process control, lithium-ion batterychemistries,
packaging and end-user notification."
In addition,
the standard aims to improve battery reliability by accounting
for multi-fault scenarios. This involves examining all relevant
battery and system design margins in combination to minimize the
risks users might face should a battery fail under intended use
or reasonably foreseeable misuse conditions.
The standard
is based on the collective experience of industry leaders involved
in mobile computer cells, packs and systems. The IEEE 1625 Working
Group currently contains 18 companies: Battery-Biz, Compal, Dell,
Dynapack, Fedco Electronics, Hewlett Packard, IBM, Inventec, Motorola,
National Semiconductor, Panasonic, Quanta, Samsung, Sanyo, Sony,
Solectron, Texas Instruments and Wistron.
IEEE P1625
is sponsored by the Stationary Battery Committee of the IEEE Power
Engineering Society. For more information on this working group,
see http://grouper.ieee.org/groups/1625/.
About the
IEEE Standards Association
The
IEEE Standards Association, a globally recognized standards-setting
body, develops consensus standards through an open process that
brings diverse parts of an industry together. These standards
set specifications and procedures based on current scientific
consensus. The IEEE-SA has a portfolio of more than 870 completed
standards and more than 400 standards in development. Over 15,000
IEEE members worldwide belong to IEEE-SA and voluntarily participate
in standards activities. For further information on IEEE-SA see:
http://standards.ieee.org.
About the
IEEE
The
IEEE has more than 380,000 members in approximately 150 countries.
Through its members, the organization is a leading authority on
areas ranging from aerospace, computers and telecommunications
to biomedicine, electric power and consumer electronics. The IEEE
produces nearly 30 percent of the world's literature in the electrical
and electronics engineering, computing and control technology
fields. This nonprofit organization also sponsors or cosponsors
more than 300 technical conferences each year. Additional information
about the IEEE can be found at http://www.ieee.org.
P1625 is a trademark of the IEEE. All other names
or product names are the trademarks, service marks or registered
trademarks of their respective holders.
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