The oxygen circulation principle of the battery is in a valve-controlled lead-acid battery, and the negative electrode is a dual action, that is, when the charging is at the end of the charging, the sponge lead in the surface of the plate is oxidized to the positive electrode. Lead, on the other hand, the lead of the lead in the plates in the plates and the electrons transmitted by the external circuits are reduced by the reduction reaction, and the lead-by sulfate is a sponge lead. Inside the battery, to make the compound reaction of oxygen can be performed, the oxygen must be diffused from the positive electrode to the negative electrode. The easier the oxygen movement process is easier, the easier the oxygen circulation is established. In the valve-controlled battery, oxygen is transmitted in two ways: one is to dissolve in the electrolyte, that is, by diffusion in the liquid phase, the negative surface is reached; the second is to spread into the negative surface in the form of a gas phase. In a conventional rich liquid, oxygen transmission can only be dissolved in oxygen in the positive electrode region H2S04 solution, and then rely on the liquid phase to the negative electrode. If oxygen moves directly between the electrodes directly through the open channel, then the migration rate of oxygen is much more diffused in the liquid phase. The positive absorption of the charge of the charging is oxygen, and there is a slight overvoltage near the positive electrode, and the negative polarization is oxygen, producing a slight vacuum, which is positive, and the pressure difference between the negative interchange will push the gas passage between the gas-based oxygen through the electrode to the negative electrode. The design of the valve-controlled lead battery provides this channel to operate the valve-controlled battery at the voltage required for the floating charge without loss of water. For oxygen circulation reaction efficiency, the AGM battery has good sealing reaction efficiency, and the oxygen composite efficiency of the lean fluid can reach more than 99%; the colloidal battery is relatively small, in the dry fracture state, up to 70-90% The rich liquid-rich battery is hardly established an oxygen-reacted reaction, and its sealing reaction is almost zero.
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