NEGATIVE ELECTRODE FOR LEAD-ACID BATTERY
PROBLEM TO BE SOLVED: To reduce the quantity of sodium lignosulfate in a negative electrode active material so as to lower unsatisfactory filling to improve the charging acceptability, and to reduce the calorific power to prevent the lowering of low-temperature high efficiency discharge capacity by...
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creator | ARAI YOSHIHARU HIRASAWA IMAKICHI |
description | PROBLEM TO BE SOLVED: To reduce the quantity of sodium lignosulfate in a negative electrode active material so as to lower unsatisfactory filling to improve the charging acceptability, and to reduce the calorific power to prevent the lowering of low-temperature high efficiency discharge capacity by adding sodium lignosulfate to a negative electrode plate for lead-acid battery restraining the flocculation of lead during the charging to refine lead particles, and adding a specified quantity of phosphoric acid or boric acid thereto. SOLUTION: A negative electrode active material paste formed by adding an addition agent such as sodium lignosulfonate and sulfuric acid to lead powder composed mainly of lead oxide, is filled in a collector, and aged, dried, and formed to obtain a negative electrode plate for lead-acid battery. At this stage, phosphoric acid or boric acid at 0.01-0.1wt.% (vs. lead powder) is added to the negative electrode active material. With this composition, the quantity of sodium lignosulfonate as a surfactant is reduced, and the paste is hardened to lower the imperfect filling and to improve the conductivity of an electrode plate and the charge acceptability is thereby improved. |
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SOLUTION: A negative electrode active material paste formed by adding an addition agent such as sodium lignosulfonate and sulfuric acid to lead powder composed mainly of lead oxide, is filled in a collector, and aged, dried, and formed to obtain a negative electrode plate for lead-acid battery. At this stage, phosphoric acid or boric acid at 0.01-0.1wt.% (vs. lead powder) is added to the negative electrode active material. With this composition, the quantity of sodium lignosulfonate as a surfactant is reduced, and the paste is hardened to lower the imperfect filling and to improve the conductivity of an electrode plate and the charge acceptability is thereby improved.</description><edition>6</edition><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRICITY ; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><creationdate>1998</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19980721&DB=EPODOC&CC=JP&NR=H10188989A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19980721&DB=EPODOC&CC=JP&NR=H10188989A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ARAI YOSHIHARU</creatorcontrib><creatorcontrib>HIRASAWA IMAKICHI</creatorcontrib><title>NEGATIVE ELECTRODE FOR LEAD-ACID BATTERY</title><description>PROBLEM TO BE SOLVED: To reduce the quantity of sodium lignosulfate in a negative electrode active material so as to lower unsatisfactory filling to improve the charging acceptability, and to reduce the calorific power to prevent the lowering of low-temperature high efficiency discharge capacity by adding sodium lignosulfate to a negative electrode plate for lead-acid battery restraining the flocculation of lead during the charging to refine lead particles, and adding a specified quantity of phosphoric acid or boric acid thereto. SOLUTION: A negative electrode active material paste formed by adding an addition agent such as sodium lignosulfonate and sulfuric acid to lead powder composed mainly of lead oxide, is filled in a collector, and aged, dried, and formed to obtain a negative electrode plate for lead-acid battery. At this stage, phosphoric acid or boric acid at 0.01-0.1wt.% (vs. lead powder) is added to the negative electrode active material. With this composition, the quantity of sodium lignosulfonate as a surfactant is reduced, and the paste is hardened to lower the imperfect filling and to improve the conductivity of an electrode plate and the charge acceptability is thereby improved.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>ELECTRICITY</subject><subject>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1998</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNDwc3V3DPEMc1Vw9XF1Dgnyd3FVcPMPUvBxdXTRdXT2dFFwcgwJcQ2K5GFgTUvMKU7lhdLcDIpuriHOHrqpBfnxqcUFicmpeakl8V4BHoYGhhYWlhaWjsbEqAEA9Q0kKQ</recordid><startdate>19980721</startdate><enddate>19980721</enddate><creator>ARAI YOSHIHARU</creator><creator>HIRASAWA IMAKICHI</creator><scope>EVB</scope></search><sort><creationdate>19980721</creationdate><title>NEGATIVE ELECTRODE FOR LEAD-ACID BATTERY</title><author>ARAI YOSHIHARU ; HIRASAWA IMAKICHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH10188989A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1998</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>ELECTRICITY</topic><topic>PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY</topic><toplevel>online_resources</toplevel><creatorcontrib>ARAI YOSHIHARU</creatorcontrib><creatorcontrib>HIRASAWA IMAKICHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ARAI YOSHIHARU</au><au>HIRASAWA IMAKICHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>NEGATIVE ELECTRODE FOR LEAD-ACID BATTERY</title><date>1998-07-21</date><risdate>1998</risdate><abstract>PROBLEM TO BE SOLVED: To reduce the quantity of sodium lignosulfate in a negative electrode active material so as to lower unsatisfactory filling to improve the charging acceptability, and to reduce the calorific power to prevent the lowering of low-temperature high efficiency discharge capacity by adding sodium lignosulfate to a negative electrode plate for lead-acid battery restraining the flocculation of lead during the charging to refine lead particles, and adding a specified quantity of phosphoric acid or boric acid thereto. SOLUTION: A negative electrode active material paste formed by adding an addition agent such as sodium lignosulfonate and sulfuric acid to lead powder composed mainly of lead oxide, is filled in a collector, and aged, dried, and formed to obtain a negative electrode plate for lead-acid battery. At this stage, phosphoric acid or boric acid at 0.01-0.1wt.% (vs. lead powder) is added to the negative electrode active material. With this composition, the quantity of sodium lignosulfonate as a surfactant is reduced, and the paste is hardened to lower the imperfect filling and to improve the conductivity of an electrode plate and the charge acceptability is thereby improved.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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subjects | BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY |
title | NEGATIVE ELECTRODE FOR LEAD-ACID BATTERY |
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