Benefits of controlling plate-group expansion: opening the door to advanced lead/acid batteries

被引:8
作者
Hollenkamp, AF [1 ]
Newnham, RH [1 ]
机构
[1] CSIRO,DIV MINERALS,MELBOURNE,VIC 3207,AUSTRALIA
关键词
lead/acid batteries; cell-group compression; positive active-material constraint; compression plates; compression-resistant separators; cycle-life rests;
D O I
10.1016/S0378-7753(97)02494-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Highly compressed, flooded-electrolyte cells have been constructed with pure-lead positive plates prepared from the following starting materials: (i) standard positive paste; (ii) standard negative paste; (iii) mixture of lead sulfate and barium sulfate; (iv) active-material removed from a cured negative-plate. All the cells return excellent cycle lives under deep-cycle service. The exceptional performance is attributed to the high level of cell-group compression that minimizes active-material shedding and maintains electrical conductivity within the positive active-mass. The results demand that traditional methods used to process battery plates be reviewed, especially in terms of positive-paste composition and curing conditions. Cost-effective strategies are identified to assist in the implementation of significant cell-group compression into commercial gelled- and flooded-electrolyte batteries. This involves the development of devices that apply accurate support to the cell group along with a compression-resistant separator system that can withstand high levels of compression. (C) 1997 Published by Elsevier Science S.A.
引用
收藏
页码:27 / 32
页数:6
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