发明名称 |
Current collection through the ends of a spirally wound electrochemical cell |
摘要 |
An electrochemical cell, including a jelly-roll type electrode stack, and a method for making such cell. The electrochemical cell includes folded electrode portions which form a plane recessed from the end of the electrode stack. The folded electrode portions are preferably formed by making pairs of slits in the electrode end and bending over the electrode portions between each pair of slits. The recessed plane forms a large area to which a current collection tab is subsequently connected. A coating may be applied to the folded portions of the electrode to further increase the contact area with the current collection tab by eliminating the slight variations in the recessed plane which are due to the overlap of the folded electrode portions.
|
申请公布号 |
US5972532(A) |
申请公布日期 |
1999.10.26 |
申请号 |
US19980071191 |
申请日期 |
1998.05.04 |
申请人 |
SAFT AMERICA, INC. |
发明人 |
OWEIS, SALAH;CHAGNON, GUY;ALUNANS, PETER;ROMERO, ANTONIO |
分类号 |
H01G9/016;H01M2/26;H01M10/04;H01M10/30;H01M10/38;H01M10/40;(IPC1-7):H01M4/02 |
主分类号 |
H01G9/016 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|