Practical Current Distribution Measurement Systems for Lead Cells

Harrison, Harry T.; Stone, D.A.; Green, James E.

doi:10.1109/tim.2018.2876016

Cited by 1 publication

(1 citation statement)

References 48 publications

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“…In two papers, Battaglia and Newman [13,14] studied the theory of the magnetic field effects in high-power batteries, giving the first approximation to the instantaneous current distribution in bipolar lead-acid batteries. Another novel application of magnetic field in studying lead-acid batteries is proposed by Harrison et al [15,16]. These researchers used the methods of magnetic tomography to non-invasively measure the current distribution of experimental lead cells.…”

Section: Introductionmentioning

confidence: 99%

Influence of Multivector Field on Paste Preparation and Formation of Negative Electrodes of Lead Batteries

Shirov

Naidenov

Markov³

2021

Batteries

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During the operation of the negative electrode, some critical processes take place, which are limiting factors for the operation of lead–acid batteries. To improve the efficiency of the negative active material and minimize these processes, external application of multivector field is proposed. Two applications of the multivector field are studied: during negative paste preparation and during formation. It is established that, when applying multivector field during negative paste preparation, the chemical processes proceed more efficiently. The results are better phase composition and crystallinity of the cured paste, thus increasing the capacity of the consequently built lead batteries by 12% on average. The application of a multivector field during the formation of negative active materials in lead batteries has a positive effect on the skeletal structure, the size and shape of the Pb crystals. This ensures longer service life, which is confirmed by the 17.5% Depth of Discharge continuous tests on 12 V/75 Ah batteries. The batteries formed under the influence of external multivector field showed 20% longer cycle life. Based on the experimental result, a most probable mechanism of the influence of the multivector field on the chemical and electrochemical processes in lead batteries during negative paste preparation and formation of negative active masses is proposed.

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