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If placed in the fridge can the battery work again? Well, the overall reaction in the battery consists of the transfer of electrons from zinc to the cathode, which is composed of manganese dioxide, powdered charcoal, and a slurry of ammonium chloride and zinc chloride. When this reaction takes place, the dioxide is converted to manganese trioxide, which is irreversible. The battery will only work as long as electrons continue to be transferred to the cathode. However, throughout the process, ammonia (NH3) is released, depositing itself on the graphite bar, making it difficult for electrons to pass through and causing the battery to discharge. Placing the battery in the fridge will not revert it from this state and therefore will not get it working again.
