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Title: Alkaline battery operational methodology

Abstract

Methods of using specific operational charge and discharge parameters to extend the life of alkaline batteries are disclosed. The methods can be used with any commercial primary or secondary alkaline battery, as well as with newer alkaline battery designs, including batteries with flowing electrolyte. The methods include cycling batteries within a narrow operating voltage window, with minimum and maximum cut-off voltages that are set based on battery characteristics and environmental conditions. The narrow voltage window decreases available capacity but allows the batteries to be cycled for hundreds or thousands of times.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
Research Foundation of the City University of New York, New York, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1295577
Patent Number(s):
9,419,289
Application Number:
14/380,008
Assignee:
Research Foundation of the City University of New York (New York, NY) ARPA-E
DOE Contract Number:
AR0000150
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Feb 21
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE

Citation Formats

Sholklapper, Tal, Gallaway, Joshua, Steingart, Daniel, Ingale, Nilesh, and Nyce, Michael. Alkaline battery operational methodology. United States: N. p., 2016. Web.
Sholklapper, Tal, Gallaway, Joshua, Steingart, Daniel, Ingale, Nilesh, & Nyce, Michael. Alkaline battery operational methodology. United States.
Sholklapper, Tal, Gallaway, Joshua, Steingart, Daniel, Ingale, Nilesh, and Nyce, Michael. 2016. "Alkaline battery operational methodology". United States. doi:. https://www.osti.gov/servlets/purl/1295577.
@article{osti_1295577,
title = {Alkaline battery operational methodology},
author = {Sholklapper, Tal and Gallaway, Joshua and Steingart, Daniel and Ingale, Nilesh and Nyce, Michael},
abstractNote = {Methods of using specific operational charge and discharge parameters to extend the life of alkaline batteries are disclosed. The methods can be used with any commercial primary or secondary alkaline battery, as well as with newer alkaline battery designs, including batteries with flowing electrolyte. The methods include cycling batteries within a narrow operating voltage window, with minimum and maximum cut-off voltages that are set based on battery characteristics and environmental conditions. The narrow voltage window decreases available capacity but allows the batteries to be cycled for hundreds or thousands of times.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 8
}

Patent:

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  • Apparatus for preventing overdischarging or reverse charging of the lowest capacity cell of a rechargeable battery having a plurality of serially connected sealed cells is described. A control cell is provided, and is responsive to a voltage rise above a threshold representing a predetermined discharge condition, for reducing the discharge current from the serially connected cells to a safe, damage suppressing level.
  • Alkaline batteries are described in which a special electrode is incorporated in the positive electrode in order to give added protection against electrochemical damage due to battery reversal. This special electrode contains a hydrogen-absorbing material which also acts as a hydrogen electrode for the conversion of hydrogen ions into elemental hydrogen. Such alkaline batteries are particularly well protected against hydrogen overpressure due to battery reversal with only a small penalty in energy density. Particularly suitable for this application is the use of a hydrogen-absorbing material with nominal formula LnM/sub 5/, in which Ln represents a lanthanide metal and M ismore » either cobalt or nickel. 3 figures.« less
  • A zinc--chlorine battery system is described in which chlorine gas evolved from the cell structure of the battery during charging of the battery is combined with a stored supply of water to form solid chlorine hydrate. During the discharge cycle of the battery, the chlorine hydrate is decomposed to replenish the chlorine content of the electrolyte. 1 figure.
  • An alkaline storage battery having located in a battery container a battery element comprising a positive electrode, a negative electrode, a separator and a gas ionizing auxiliary electrode, in which the gas ionizing electrode is contained in a bag of microporous film, is described.
  • An improved battery separator for alkaline battery cells is described that has low resistance to electrolyte ion transfer and high resistance to electrode ion transfer. The separator is formed by applying an improved coating to an electrolyte absorber. The absorber, preferably, is a flexible, fibrous, and porous substrate that is resistant to strong alkali and oxidation. The coating composition includes an admixture of a polymeric binder, a hydrolyzable polymeric ester and inert fillers. The coating composition is substantially free of reactive fillers and plasticizers commonly employed as porosity promoting agents in separator coatings. When the separator is immersed in electrolyte,more » the polymeric ester of the film coating reacts with the electrolyte forming a salt and an alcohol. The alcohol goes into solution with the electrolyte while the salt imbibes electrolyte into the coating composition. When the salt is formed, it expands the polymeric chains of the binder to provide a film coating substantially permeable to electrolyte ion transfer but relatively impermeable to electrode ion transfer during use.« less