Development of Hybrid (Sb/Ca) Flooded Lead-Acid Battery for Minimizing Water Loss

Seung Yun Song; Tae Seop Lim; Sung Jun Kim; Yeon-Gil Jung; SeungCheol Yang

doi:10.3740/MRSK.2022.32.3.146

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2022 Vol.32, Issue 3 Preview Page Next Page

Development of Hybrid (Sb/Ca) Flooded Lead-Acid Battery for Minimizing Water Loss 감액 특성 향상을 위한 하이브리드(Sb/Ca) 액식 연축전지 개발

March 2022. pp. 146-152

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Abstract

One disadvantage of deep cycle flooded lead-acid batteries is increasing water loss caused by use of (+) Pb-Sb / (-) Pb-Sb alloy grid. Water loss is generated by the emission of hydrogen gas from the (-) electrode during battery charging. In this paper, we maintain cycle life aspect through the development of hybrid flooded lead-acid batteries to which a (+) Pb- Sb / (-) Pb-Ca grid is applied and deal with the improvement of water loss. The amount of water loss compared to that of the (-) Pb-Sb grid decreased when Ca was added to the (-) Pb grid. For the (-) Pb-Ca grid, it was confirmed that the time to reach 0.0 V, at which water decomposition occurs, was increased compared to that of the (-) Pb-Sb grid at the NPV (Negative Potential Voltage). In the cycle life test conducted with the BCI (Battery Council International) standard, compared to the (+) Pb-Ca grid, the (+) Pb-Sb grid increased the life cycle of the batteries and the (+) Pb-Ca grid showed an early end of life due to PbO corrosion layer generation, as determined through SEM / EDS and Tear Down analysis. In conclusion, by addition of Sb to (+) Pb grid and Ca to (-) Pb grid, we developed a hybrid flooded lead-acid battery that meets user requirements to improve water loss characteristics and preserve cycle life characteristics.

Keywords

flooded lead-acid battery

grid

electrode

water loss

corrosion layer

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Information

Publisher :Materials Research Society of Korea
Publisher(Ko) :한국재료학회
Journal Title :Korean Journal of Materials Research
Journal Title(Ko) :한국재료학회지
Volume : 32
No :3
Pages :146-152
Received Date : 2022-01-11
Revised Date : 2022-02-26
Accepted Date : 2022-03-11
DOI :https://doi.org/10.3740/MRSK.2022.32.3.146

Korean Journal of Materials Research ISSN:1225-0562(Print) 2287-7258(Online) 한국재료학회지

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