NDLI: A look back at forty years of lead-acid-battery development; A survey especially regarding stationary applications

Content Provider	IEEE Xplore Digital Library
Author	Berndt, D.
Copyright Year	2005
Abstract	Forty years ago, lead-acid batteries were already the dominating electrochemical storage system. As standby batteries, they mostly were used as large central batteries of flooded cells. Although they already represented a matured system, development went on, mainly in the areas of safety aspects and reduction of maintenance expenses. An important turning point was the introduction of the valve-regulated design, abbreviated as VRLA batteries, characterized by immobilized electrolyte and an internal-oxygen cycle. This design implies a number of advantages: spillage of acid no longer is possible, the battery can be installed in any position, gassing by overcharging is largely reduced, acid fumes do not escape, and, as a consequence, water loss can be neglected under normal operational conditions. Furthermore, this design extends the possibilities of lead-acid batteries in various aspects, e.g., discharge/charge cycles are feasible in a partly charged state. But there also are a number of constraints that had to be learned, partly by sobering and costly experience. All materials have to be scrutinized and selected to minimize water loss. Special absorbent separators had to be developed, and there must be a certain balance between corrosion and hydrogen evolution. Internal catalysts are a possibility to improve this balance
Sponsorship	pels IEEE
Starting Page	269
Ending Page	275
File Size	6144702
Page Count	7
File Format	PDF
ISBN	9783800729050
DOI	10.1109/INTLEC.2005.335104
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-18
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	VDE-VERLAG
Subject Keyword	Batteries Electrodes Voltage Corrosion Hydrogen Lead compounds Oxygen Nickel Safety Turning
Content Type	Text
Resource Type	Article

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