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Twin: Electrolytic Cell as the Forced-Reverse Galvanic Cell

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An electrolytic cell runs the same redox chemistry as a galvanic cell but forced nonspontaneous by external power, not generated from an already-favored reaction.

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Recharging a secondary battery is electrolysis: the cell that discharged spontaneously as galvanic is driven backward by a charger.

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Assuming galvanic and electrolytic cells use different chemistry misses that one rechargeable cell is literally both in turn.