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- W619974953 abstract "Silica based gel electrolyte has been used as one of the routes in the development of maintenance free lead acid batteries.Both precipitated silica samples and pyrogenic silica have been characterised in terms of their properties, namely, apparentdensity, particle size and size distribution, surface area, acid absorption etc. The samples show a wide variation in apparentdensity values, the pyrogenic samples having the lowest value. The particle size distribution of the pyrogenic sample is notas expected, probably because of the difference in the particle shape and formation of agglomerates. Acid absorption valuesalso show a regular increase with the fineness of the silica sample. It is also found that the pyrogenic sample forms a gelsuitable for battery electrolyte with sulphuric acid alone while the other samples require a gelling agent for repelling the silicaparticles and for catalysing the cross linking of siloxane groups. The finer the sample, the better the conductivity as well asthe performance of the battery using the gel electrolyte. Temperature is also having an influence in the formation of the gel,high temperature accelerating the gel formation and low temperatures retarding the same. The keeping quality of the gel isalso found to be good. Test results of a few small capacity batteries with gel electrolyte are presented and compared withthose with pure sulphuric acid" @default.
- W619974953 created "2016-06-24" @default.
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- W619974953 date "1988-01-01" @default.
- W619974953 modified "2023-09-23" @default.
- W619974953 title "Characterisation of sample of silica for use in gel type maintenance free lead acid batteries" @default.
- W619974953 hasPublicationYear "1988" @default.
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