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Compared with lithium iron phosphate batteries, lead-acid batteries (VRLA) performance characteristics and problems

by:dcfpower     2021-03-21
Lead-acid batteries (VRLA), the electrodes are mainly made of lead and its oxides. The electrolyte is a kind of storage battery of sulfuric acid solution. When the lead-acid battery is charged. The main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead; the main component of the positive and negative electrodes in the discharge state is lead sulfate. u003cpu003e1 Classification and performance are based on the structure and use of lead-acid batteries. Roughly divide the batteries into four categories: (1) Lead-acid batteries for starting; (2) Lead-acid batteries for power; (3) Fixed valve-regulated sealed lead-acid batteries; (4) Other types, including small valve-controlled Sealed lead-acid batteries, lead-acid batteries for miner’s lamps, etc. The nominal voltage of a single-cell lead-acid battery is 2.0V. It can discharge to 1.5V and charge to 2.4V. In application. Often 6 single-cell lead-acid batteries are connected in series to form a nominal 12V lead-acid battery. There are 24V 36V 48V and so on. u003cpu003e2 Main features (1) Safety seal: in normal operation. The electrolyte will not leak out of the battery terminal or case. (2) There is no free acid: a special absorbent partition keeps the acid inside. There is no free acid inside the battery, so the battery can be placed anywhere. (3) Venting system: When the internal pressure of the battery exceeds the normal level, the VRLA battery will release excess gas and automatically reseal to ensure that there is no excess gas in the battery. (4) Simple maintenance: Because of the unique gas compounding system, the produced gas can be converted into vesic acid. There is no need to add water during the use of VRLA batteries. (5) Long service life: VRLA battery with lead-calcium alloy fence with anti-corrosion structure can be used for floating charge for 10-15 years. (6) Stable quality and high reliability: Using advanced production technology and strict quality control system, VRLA batteries have stable quality and reliable performance. The voltage, capacity, and sealing line are 100% inspected. (7) Safety certification: All VRLA batteries have passed UL safety certification. u003cpu003e3 Precautions before use (1) Ensure that adequate insulation measures are taken between and around the battery and the device. Insufficient insulation measures may cause electric shock. Short-circuit heat, smoke or burn. (2) For charging applications, a charger that is directly connected to a DC power supply may cause battery leakage, heating or burning. (3) Due to self-discharge. The battery capacity will slowly decrease. Please recharge the battery before using it after storage for a long time. Comprehensive analysis of the above is not difficult to see. The performance of lithium iron phosphate batteries is far superior to that of lead-acid batteries. Therefore, the battery has been included in the '863 National High-tech Development Plan' during the 'Tenth Five-Year Plan' period, and has become a national key support and encouragement project. Therefore, lithium iron phosphate was chosen. As an electric vehicle battery, it will be a wise choice with long-term strategic significance!u003c/pu003e
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