AGM-free maintenance battery charge and discharge generation water decomposition?

The chemical reaction principle of the AGM-free maintenance valve-controlled lead-acid battery is to charge the electrical energy into chemical energy to store the chemical energy to electrical supply external system when discharged. Its charging and discharging process is done by chemical reaction. The chemical reaction formula is as follows: from the above reaction, there is a water decomposition reaction during charging, when the positive electrode is charged to 70%, start precipitation oxygen, and the negative electrode is charged to 90%. When the hydrogen is precipitated, the battery will lose water if the gas generated by the hydroxide cannot be re-used, and the battery is dry; for the early conventional lead-acid battery, due to the precipitation of hydroxide and from the inside of the battery, not The re-compix of the gas is an important reason for the need for acid and addition maintenance; and the valve-controlled lead-acid battery can re-composite the oxygen in the battery, while inhibiting the precipitation of hydrogen, overcoming the main disadvantage of the conventional lead-acid battery. . The valve-controlled lead-acid battery uses an anode active material excessive design, AGM or GEL electrolyte adsorption system, and the oxygen generated by the positive electrode is diffused into the negative electrode through the AGM or GEL void, and the negative electrode sponge lead will become water to make the negative electrode. In the depolarization state or the charge is not enough, the hydrogen is not added, so the negative electrode does not precipitate hydrogen due to charging, and the battery is low, so there is no need to add water during use. In the valve-controlled lead-acid battery, the negative electrode has a double 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, and the other is oxidized into a lead, on the other hand The lead in the polar panel is also to receive the electron transported by the external circuit for reduction reaction, and the lead in the lead reaction of the sulfate into a sponge lead. Inside the battery, to make the composite reaction of oxygen can be performed, oxygen must be diffused from the positive electrode to the negative electrode. The easier the oxygen movement is easier, the easier the oxygen circulation is established. In the case of 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 electrode surface is reached; the second is to diffuse in the form of a gas phase to the negative surface. In a conventional rich liquid, oxygen transmission can only be dissolved in oxygen in the positive electrode region H2SO4 solution, and then rely on the liquid phase to the negative electrode. If oxygen moves directly between the electrodes, the migration rate of oxygen is much larger than the migration rate of the oxygen is much higher than that in the liquid phase. The final phase 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, the gas passage is moved 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 oxygen-reacted reaction, and its sealing reaction is almost zero. Recommend: LiFePO4 Battery Manufacturer Energy storage battery Manufacturer Integrated machine energy storage battery series Manufacturer Lead lithium battery Manufacturer Outdoor Backup Battery Manufacturer Portable outdoor power supply Manufacturer Power battery Manufacturer Powerwall LiFePO4 Battery Manufacturer Battery rack Manufacturers Telecom LiFePO4 Battery Manufacturer Wall mounted battery storage Manufacturer China Lifepo4 Battery LiFePO4 Battery 48V 150AH LiFePO4 Battery 48V 100AH