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Thread: Batteries cycle life problem

  1. #1 Batteries cycle life problem 
    Forum Professor
    Join Date
    Apr 2009
    Could anybody explain what factors limit battery cycle life or make it non-rechargeable?
    What part of battery degrade most of all,is it electrolyte or something else?
    If we will make battery casing from some chemically non-reactive substance-such as fibrerglass and will periodically-once a year-replace an electrolyte,how much could we increase a cycle life?Why supercapacitors withstand much longer cycle life then batteries?They also experience flow of electric current and some non-desirable reactions also suppose to take plase.
    What chemical properties makes battery non rechargeable?For example Aluminum-air is non rechargeable while zinc-air seems to be.
    I would be glad to know about particular systems such as:
    1)Aluminum-iodine.Is it rechargeable or not?
    2)Aluminum nitride seems to be solvable in water.Does that mean that we could make system rechargeable if we will find some cathalyst which react aluminum with nitrogen
    at ambient temperature?
    3)Is it possible to create batteries which would use energy of atom recombination?For example we could store nitrogen in atomic adsorbed form and after that recombine to receive electricity?

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  3. #2  
    Forum Freshman
    Join Date
    Mar 2011
    Electrode damage is the reason the battery life. Metal electrodes in the battery will be from a chemical reaction in solution, this is the reason for discharge of the battery automatically. Battery charge, discharge, when the positive electrode oxidation reduction reaction will consume negative electrode.
    Battery solution will also release gases due to chemical reactions, and reduce the volume.
    Chemical reaction with the temperature in it's place in the large temperature changes, the battery chemistry is more stable, shorter life expectancy.
    Super capacitor is not a battery, works differently. No drastic chemical changes within, not easily damaged.
    Improve battery performance, look for new materials or find new principles

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  4. #3  
    Forum Ph.D.
    Join Date
    Jan 2009
    look up
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