scholarly journals Lyotropic Liquid Crystalline Mesophase of Sulfuric Acid–Nonionic Surfactant Stabilizes Lead(II) Oxide in Sulfuric Acid Concentrations Relevant to Lead Acid Batteries

ACS Omega ◽  
2017 ◽  
Vol 2 (7) ◽  
pp. 3785-3791 ◽  
Author(s):  
Can Berk Uzundal ◽  
Fadime Mert Balci ◽  
Burak Ulgut ◽  
Ömer Dag
Author(s):  
Chijioke Elijah Onu ◽  
Nnabundo Nwabunwane Musei ◽  
Philomena Kanwulia Igbokwe

The adoption of aluminium sulfate and potassium sulfate as electrolyte additives were investigated to determine the possibility of enhancing the charge cycle of 2V/ 20AH lead acid battery with reference to the conventional dilute sulfuric acid electrolyte. The duration and efficiency of lead acid batteries have been a challenge for industries over time due to weak electrolyte and insufficient charge cycle leading to sulfation. This has affected the long-term production output in manufacturing companies that depend on lead acid batteries as alternative power source. Hence there is need to explore the use of specific sulfate additives that can possibly address this gap. The electrolyte solutions were in three separate charge and discharge cycles involving dilute sulfuric acid electrolyte, dilute sulfuric acid-aluminium sulfate mixed electrolyte and dilute sulfuric acid-potassium sulfate mixed electrolyte for one hour each. The total voltage after 30 minutes charge cycle was 2.3V, 2.35V and 5.10V for dilute sulfuric acid, aluminium sulfate additive and potassium sulfate additive respectively. The cell efficiency for dilute sulfuric acid, aluminium sulfate additive and potassium sulfate additive electrolytes are 77%, 77% and 33% respectively. The electrolyte sulfate additives were of no positive impact to the conventional dilute sulfuric acid electrolyte of a typical lead acid battery due to the low difference in potentials between the terminals.


2012 ◽  
Vol 217-219 ◽  
pp. 801-804 ◽  
Author(s):  
Dong Mei Li ◽  
Yan Li Xu ◽  
Guang Jin Zhao ◽  
Yong Wei Wang ◽  
Yang Guo

It is reported that large quantities of valve regulated lead-acid batteries used in the substations shall be harmlessly treated, for lead plates, sulfuric acid and other compositions are direct hazard for the environment. Herein, we have carried out the investigation on the reconstruction and reuse of the used VRLA, battery reconditioning, influence of spent VRLA to the environment, storage condition obeying to environment of state grid and directed cycle model of recycling technologies.


1990 ◽  
Vol 78 ◽  
pp. 31-34
Author(s):  
Claude Pascon

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