ENDURANCE OF BATTERIES AND SEPARATORS IN AUTOMOTIVE APPLICATIONS UNDER HIGH-TEMPERATURE CONDITIONS

Authors
Citation
T. Higashi et H. Endoh, ENDURANCE OF BATTERIES AND SEPARATORS IN AUTOMOTIVE APPLICATIONS UNDER HIGH-TEMPERATURE CONDITIONS, Journal of power sources, 73(1), 1998, pp. 110-121
Citations number
1
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Electrochemistry,"Energy & Fuels
Journal title
ISSN journal
0378-7753
Volume
73
Issue
1
Year of publication
1998
Pages
110 - 121
Database
ISI
SICI code
0378-7753(1998)73:1<110:EOBASI>2.0.ZU;2-D
Abstract
Endurance tests under high-temperature conditions have been performed on three groups of automotive batteries. One group has been assembled with polyethylene pocket separators fur thr negative plates, another w ith polyethylene pocket separators with glass mats for the positive pl ates. and a third with leaf-type synthetic pulp separators with glass mats. Negative plates developed a sand-like appearance in the batterie s assembled with the polyethylene pocket separators for the negative p lates. Evidence of piercing shorts is found in batteries assembled wit h polyethylene pocket separators with glass mars for the positive plat es. Also presented are the results of a structural analysis of failure s in polyethylene separators after a series of cycle-life tests under high-temperature conditions, together with a theoretical examination o f the deterioration process of the polyethylene pocket separators. It is concluded that battery assembly with polyethylene pocket separators with glass mat is an effective way to achieving good endurance (i.e. life extension at high temperature). On the other hand, the selection of leaf-type synthetic pulp separators with glass mars is the best app roach for hot climatic conditions. (C) 1998 Published by Elsevier Scie nce S.A. All rights reserved.