| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery of which variation in melting state and melting of an insulating sheet are prevented when welding an electrode body to a collector terminal for assuring battery quality. <P>SOLUTION: The nonaqueous electrolyte battery 1 comprises an electrode body 2 equipped with edges 33 and 43 in which non-coated 32 and 42 are stacked with sheet-like electrode plates 3 and 4 without coating electrode active material, and a collector terminal 6 to which the edges 33 and 43 of the electrode body 2 are welded. The electrode body 2 is jointed to the collector terminal 6 by a plurality of points. The collector terminal 6 comprises a heat shield 64 that blocks transfer of heat between the joints. The nonaqueous electrolyte battery 1 assures a good melting state and prevents shorting due to melting of the insulating sheet by providing the collector terminal 6 with the heat insulator 64. <P>COPYRIGHT: (C)2008,JPO&INPIT |
