Patent ID: 9647246
Date: 2017-05-09
CPC Classifications: H01M,Y02E,Y02P

Claim:
1. A battery comprising: a case having an accommodation space in a tubular interior; and an electrode body disposed in the accommodation space in the case, and including a positive plate, a negative plate, and a separator disposed between the positive plate and the negative plate, wherein a spacer formed of a dense body and an electrolyte storage space in which an electrolyte is stored are provided between the electrode body and the case on one end or both ends of the case in an axial direction of the electrode body; the spacer comprises three or four plates having flat surfaces, the flat surfaces being in parallel to the axial direction of the electrode body; when the spacer comprises the three plates, the three plates are disposed at an angle of about 120 degrees from each other around the axial direction of the electrode body; and when the spacer comprises the four plates, the four plates are disposed at an angle of about 90 degrees from each other around the axial direction of the electrode body.