NDLI: Evaluation of overcharge protection life in nickel cadmium cells with nonnylon separators

Content Provider	IEEE Xplore Digital Library
Author	Scoles, D.L. Johnson, Za.W. Hayden, J.W. Pickett Jr., D.F.
Copyright Year	1997
Description	Author affiliation: Dept. of Power Syst., Eagle-Picher Ind. Inc., Colorado Spring, CO, USA (Scoles, D.L.)
Abstract	Hydrogen gassing and the potential for cell rupture in aerospace nickel cadmium cells is directly related to loss of overcharge protection built into the cell during manufacturing. It is well known that cells having nylon separators contribute to this loss via a hydrolysis reaction of the nylon in the potassium hydroxide electrolyte environment in the cell. The hydrolysis reaction produces lower chain organics which are oxidized by the positive electrode and oxygen. Oxidation of the organics diminishes the overcharge protection. With introduction of the Super NiCd/sup TM/ and the Magnum/sup TM/ nickel cadmium cells the nylon hydrolysis reaction is eliminated, but any reducing agent in the cell such as nickel or an organic additive can contribute to loss of overcharge protection. The present effort describes analyses made to evaluate the extent of overcharge protection loss in cells which do not have nylon hydrolysis and quantifies the diminished amount of overcharge protection loss as a result of eliminating nylon from aerospace cells.
Starting Page	49
Ending Page	59
File Size	558537
Page Count	11
File Format	PDF
ISBN	0780336313
ISSN	10898182
DOI	10.1109/BCAA.1997.574076
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-01-14
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Nickel Cadmium Particle separators Batteries Power system protection Aerospace industry Electrodes Hydrogen Oxidation Aerospace materials
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in