Bulletin of the Korean Chemical Society

  • 제29권5호
  • /
  • Pages.998-1002
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  • 2008
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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The Optimization of Gel Electrolytes on Performance of Valve Regulated Lead Acid Batteries

  • An, Sang-Yong (Department of Chemistry, Pusan National University) ;
  • Jeong, Euh-Duck (High-Technology Components & Materials Research Center, Basic Science Institute) ;
  • Won, Mi-Sook (High-Technology Components & Materials Busan Center, Basic Science Institute) ;
  • Shim, Yoon-Bo (Department of Chemistry, Pusan National University)
  • 발행 : 2008.05.20
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초록

The gel electrolytes were prepared with sulfuric acid and phosphoric acid, where hydrophilic fumed silica was used as a gelling agent. The influences of gel electrolyte on performance of the valve regulated lead acid (VRLA) batteries were investigated employing capacity tests, electrochemical impedance spectroscopy and scanning electron microscopy. The initial capacities of the sulfuric gel VRLA batteries were higher than that of phosphoric gel VRLA batteries. The sulfuric gel VRLA battery using 1.210 specific gravity of sulfuric acid with hydrophilic fumed silica exhibited the highest capacity of 0.828Ah. In the impedance measurements, the ohmic and charge transfer resistances for the phosphoric gel VRLA batteries were higher thanthat of sulfuric gel batteries. The morphology of electrodes of phosphoric gel VRLA batteries were more deteriorated in the SEM image.

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피인용 문헌

  1. Battery Technologies for Large-Scale Stationary Energy Storage vol.2, pp.1, 2011, https://doi.org/10.1146/annurev-chembioeng-061010-114116
  2. A novel polysiloxane-based polymer as a gel agent for gel–VRLA batteries vol.23, pp.8, 2017, https://doi.org/10.1007/s11581-017-2040-y
  3. Influence of morphology of colloidal nanoparticle gels on ion transport and rheology vol.150, pp.21, 2019, https://doi.org/10.1063/1.5099056