JP2877492B

JP2877492B

PURPOSE:To enhance the airtightness of a sealed battery by forming a gas vent hole through a battery container, and welding a metal ring to the container via a metal thin film which is ruptured by a rise in the internal pressure of the container, and isolating the gas vent hole from the inside. CONS...

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Hauptverfasser: KAWAHARA KATSUHIRO, NAGAO NOBUHIRO
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator KAWAHARA KATSUHIRO
NAGAO NOBUHIRO
description PURPOSE:To enhance the airtightness of a sealed battery by forming a gas vent hole through a battery container, and welding a metal ring to the container via a metal thin film which is ruptured by a rise in the internal pressure of the container, and isolating the gas vent hole from the inside. CONSTITUTION:To weld a battery container 1 to a metal thin plate 3 made of a material which is largely different in thickness from the material of which the container 1 is made, the thin plate 3 is sandwiched between the container 1 and a metallic ring 4 with the same thickness as the container 1 and then the thin plate 3 is located at the center of the overall thickness of the welding portion, so that the failure of welding can be avoided. Thereby the phenomenon of liquid leakage due to pin holes and blow holes, etc., can be prevented during installation of an implosion-proofing device, so enhancing the airtightness of the sealed battery.
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CONSTITUTION:To weld a battery container 1 to a metal thin plate 3 made of a material which is largely different in thickness from the material of which the container 1 is made, the thin plate 3 is sandwiched between the container 1 and a metallic ring 4 with the same thickness as the container 1 and then the thin plate 3 is located at the center of the overall thickness of the welding portion, so that the failure of welding can be avoided. Thereby the phenomenon of liquid leakage due to pin holes and blow holes, etc., can be prevented during installation of an implosion-proofing device, so enhancing the airtightness of the sealed battery.</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>1999</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&amp;date=19990331&amp;DB=EPODOC&amp;CC=JP&amp;NR=2877492B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19990331&amp;DB=EPODOC&amp;CC=JP&amp;NR=2877492B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KAWAHARA KATSUHIRO</creatorcontrib><creatorcontrib>NAGAO NOBUHIRO</creatorcontrib><title>JP2877492B</title><description>PURPOSE:To enhance the airtightness of a sealed battery by forming a gas vent hole through a battery container, and welding a metal ring to the container via a metal thin film which is ruptured by a rise in the internal pressure of the container, and isolating the gas vent hole from the inside. CONSTITUTION:To weld a battery container 1 to a metal thin plate 3 made of a material which is largely different in thickness from the material of which the container 1 is made, the thin plate 3 is sandwiched between the container 1 and a metallic ring 4 with the same thickness as the container 1 and then the thin plate 3 is located at the center of the overall thickness of the welding portion, so that the failure of welding can be avoided. 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CONSTITUTION:To weld a battery container 1 to a metal thin plate 3 made of a material which is largely different in thickness from the material of which the container 1 is made, the thin plate 3 is sandwiched between the container 1 and a metallic ring 4 with the same thickness as the container 1 and then the thin plate 3 is located at the center of the overall thickness of the welding portion, so that the failure of welding can be avoided. Thereby the phenomenon of liquid leakage due to pin holes and blow holes, etc., can be prevented during installation of an implosion-proofing device, so enhancing the airtightness of the sealed battery.</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 JP2877492B
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