| 摘要 |
The present invention relates to an electrical energy storage device, comprising: an electrode winding body on which a positive electrode which generates electrons in accordance with an oxidation-reduction reaction, a negative electrode which absorbs the generated electrons, and a separator for the physical separation between the positive electrode and the negative electrode, are wound in sequence about a winding core, wherein said electrode winding body has an electrolyte solution provided between the positive electrode and the negative electrode; a terminal plate for external connection for connecting the electrode winding body to an external electrode connection member such as an external resistor; and a cylindrical case which accommodates the electrode winding body connected to the terminal plate for external connection, wherein said terminal plate and a lead of one polarity of the electrode winding body are interconnected by plasma spraying, welding, soldering, and a conductive connection member which is selectively adhered thereto by conductive adhesive materials. The electrical energy storage device of the present invention employs said connection member which reduces the differences in thickness among a plurality of objects to be welded together, and thus significantly reduces defects in welding the lead of the polarity of the electrode winding body and the terminal plate together, and improves the efficiency of high-rate discharge (high current discharge). |
