LEAD ACCUMULATOR BATTERY
To provide a lead accumulator battery capable of improving the short circuit resistance between a separator and a positive electrode composed of an active material holding member.SOLUTION: A lead accumulator battery 100 comprises an electrode group 110 in which a negative electrode 20 and a positive...
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Format | Patent |
Language | English Japanese |
Published |
07.07.2023
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Abstract | To provide a lead accumulator battery capable of improving the short circuit resistance between a separator and a positive electrode composed of an active material holding member.SOLUTION: A lead accumulator battery 100 comprises an electrode group 110 in which a negative electrode 20 and a positive electrode 10 that is configured to include an active material holding member 11 composed of a plurality of cylindrical members 12 and a positive electrode material 16 filled in the cylindrical members 12, are laminated via a separator 30. The cylindrical members 12 configuring the active material holding member 11 include a first cylindrical member 12A formed by welding a longitudinal end part 13c of a belt-like base material 13 when the base material 13 is spirally wound. At least a part of a welded portion 70 welded in the first cylindrical member 12A is formed with a projection 71 protruded outside an outer surface of the base material 13 and having a density higher than that of the base material 13. The projection 71 of the cylindrical member 12 is protruded in a direction where the separator 30 is arranged.SELECTED DRAWING: Figure 6
【課題】活物質保持部材からなる正極とセパレータとの間の耐短絡性を向上させることができる、鉛蓄電池を提供する。【解決手段】鉛蓄電池100は、複数の筒状部材12からなる活物質保持部材11と筒状部材12に充填される正極材16とを含んで構成される正極10と負極20とがセパレータ30を介して積層される電極群110を備える。活物質保持部材11を構成する筒状部材12の中には、帯状の基材13を螺旋状に巻き回したときに基材13の長手方向端部13cが溶着されることによって形成されている第一筒状部材12Aが含まれている。第一筒状部材12Aにおいて溶着された溶着部分70の少なくとも一部は、基材13の外表面よりも外側に突出すると共に、基材13の密度よりも密度が高い突出部71が形成されている。筒状部材12の突出部71は、セパレータ30が配置されている方向に突出している。【選択図】図6 |
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AbstractList | To provide a lead accumulator battery capable of improving the short circuit resistance between a separator and a positive electrode composed of an active material holding member.SOLUTION: A lead accumulator battery 100 comprises an electrode group 110 in which a negative electrode 20 and a positive electrode 10 that is configured to include an active material holding member 11 composed of a plurality of cylindrical members 12 and a positive electrode material 16 filled in the cylindrical members 12, are laminated via a separator 30. The cylindrical members 12 configuring the active material holding member 11 include a first cylindrical member 12A formed by welding a longitudinal end part 13c of a belt-like base material 13 when the base material 13 is spirally wound. At least a part of a welded portion 70 welded in the first cylindrical member 12A is formed with a projection 71 protruded outside an outer surface of the base material 13 and having a density higher than that of the base material 13. The projection 71 of the cylindrical member 12 is protruded in a direction where the separator 30 is arranged.SELECTED DRAWING: Figure 6
【課題】活物質保持部材からなる正極とセパレータとの間の耐短絡性を向上させることができる、鉛蓄電池を提供する。【解決手段】鉛蓄電池100は、複数の筒状部材12からなる活物質保持部材11と筒状部材12に充填される正極材16とを含んで構成される正極10と負極20とがセパレータ30を介して積層される電極群110を備える。活物質保持部材11を構成する筒状部材12の中には、帯状の基材13を螺旋状に巻き回したときに基材13の長手方向端部13cが溶着されることによって形成されている第一筒状部材12Aが含まれている。第一筒状部材12Aにおいて溶着された溶着部分70の少なくとも一部は、基材13の外表面よりも外側に突出すると共に、基材13の密度よりも密度が高い突出部71が形成されている。筒状部材12の突出部71は、セパレータ30が配置されている方向に突出している。【選択図】図6 |
Author | SUZUKI KEITA MINAMIYAMA MION |
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Snippet | To provide a lead accumulator battery capable of improving the short circuit resistance between a separator and a positive electrode composed of an active... |
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SubjectTerms | BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY |
Title | LEAD ACCUMULATOR BATTERY |
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