Multiple modes of valve-regulated lead-acid batteries
by:Power Kingdom
2021-04-20
The failure modes of valve-regulated lead-acid batteries. For valve-regulated lead-acid batteries, the usual performance deterioration mechanisms are as follows. When the open-ended lead-acid battery is charged, in addition to the regeneration of the active material, the water in the sulfuric acid electrolyte is gradually electrolyzed to generate hydrogen and oxygen. When the gas flows from the vent of the battery cover to the atmosphere, 11.7 kcal of heat is generated per 18 grams of water decomposition. For valve-regulated lead-acid batteries, the internal oxygen generated during charging flows to the negative electrode. The active material spongy lead oxidizes and effectively replenishes the water lost by electrolysis. Valve-regulated lead-acid batteries rely on the heat conduction of the shell wall to dissipate heat. Good ventilation and low room temperature are important conditions for battery installation. In order to further reduce the risk of thermal runaway, the float voltage usually depends on different manufacturers and different room temperatures. Manufacturers generally give the float voltage and temperature compensation coefficient of the battery. In valve-regulated lead-acid batteries, the deterioration of this form of performance is inherently more serious. Due to the oxygen cycle reaction, the negative active material is continuously oxidized to produce lead sulfate, which effectively maintains the discharge state, thereby reducing the potential of the negative plate. For a given float charge voltage, the potential of the positive plate group is correspondingly higher. As a result, the oxidizing atmosphere is intensified, causing more oxygen to be precipitated, and the valve-regulated lead-acid battery intensifies the corrosion and shedding of the active material.
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Anyone who has seen the latest top lead acid battery manufacturers sealed lead acid battery in operation cannot help but be impressed with how far the technology has progressed over the past few years.
Shenzhen Power Kingdom Co., Ltd. will deliver superior returns to our shareholders by tirelessly pursuing new growth opportunities while continually improving our profitability, a socially responsible, ethical company that is watched and emulated as a model of success.
By investing in an ethical supply chain, Shenzhen Power Kingdom Co., Ltd. position ourselves to engage with a driven, engaged customer base.
Individuals with varied technical skills use sealed lead acid battery in a wide range of applications.
Shenzhen Power Kingdom Co., Ltd. who primarily serve our consumers need to consider offering their products in an top lead acid battery manufacturers such as sealed lead acid battery to take advantage of the growing interest from consumers in supporting top lead acid battery manufacturers.
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