BATTERY

• Main Authors: TSUJIGUCHI MINEFUMI, OSHIMA KAZUO, YOKOYAMA YOSHIKI
• Format: Patent
• Language: English; Japanese
• Published: 06.02.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a battery with suitably improved reliability.SOLUTION: According to a preferred aspect, a battery 100 disclosed herein comprises: an electrode body 10 having positive and negative electrodes; a case body 2 which has an opening 3 and houses the electrode body 10; a sealing plate 4 which has a terminal fitting hole 8 and seals the opening 3; a collector terminal 20 which has one end electrically connected to the positive or negative electrode inside the case body 2, and the other end inserted through the terminal fitting hole 8 so as to be exposed to the outside of the sealing plate 4; and an insulation member 30 which insulates at least part of the sealing plate 4 and the collector terminal 20. The collector terminal 20 is provided with a plurality of recesses 23a. The recesses 23a are filled with the insulation member 30 which faces the recesses 23a.SELECTED DRAWING: Figure 2 【課題】信頼性が好適に向上された電池を提供すること。【解決手段】ここで開示される電池１００の好適な一態様では、正負極それぞれの電極を有する電極体１０と、開口部３を有し、電極体１０を収容するケース本体２と、端子装着孔８を有し、開口部３を封口する封口板４と、一端がケース本体２の内部で正負極のいずれかの電極と電気的に接合され、他端が端子装着孔８に挿通されて封口板４の外側に露出する集電端子２０と、封口板４および集電端子２０の少なくとも一部を絶縁する絶縁部材３０と、を備えており、集電端子２０に、複数の凹部２３ａが形成されており、凹部２３ａには、凹部２３ａに対向する絶縁部材３０が充填されている。【選択図】図２