Lithium-ion polymer 031031




Batteries/Lithium-ion Polymer Topic
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(Oct. 2003) Electrovaya receives major contract from NASA.
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(Sept. 2003) IEEE (Institute of Electrical and Electronic Engineers)  completes new draft of standard for mobile computer batteries.  The standard IEEE 1625, “Standard for Rechargeable Batteries for Mobile Computers,” utilizes a system approach to improve the reliability of the next generation of rechargeable Lithium-ion and Lithium-ion polymer batteries.  A revised draft will be studied and reviewed by  a broader scope in the industry in October.  

Jeff Layton, IEEE 1625 Working Group Chair, said, “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 the 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 battery chemistries, packaging and end-user notification.  

The following 18 companies, the IEEE Working Group, have used their collective experience to make such a standard possible: Battery-Biz, Compal, Dell, Dynapack, Fedco Electronics, Hewlett Packard, IBM, Inventec, Motorola, National Semiconductor, Panasonic, Quanta, Samsung, Sanyo, Sony, Solectron, Texas Instruments and Wistron.

More information on the IEEE P1625 Standard can be found in the article entitled “A Revisit to Lithium-ion Safety.”
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(October, 02) Solar and Lithium
(February 2002) Lithium-ion polymer Poised for Market Recovery

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