PREPARATION METHOD OF LAMINATED CELL

摘要

The present disclosure provides a preparation method of a laminated cell comprising: providing a laminated pack: the laminated pack comprises n laminated groups, the each laminated group comprises m electrode plate assemblies, a spacer is provided between the adjacent laminated groups, the electrode plate assemblies of all the laminated groups of the laminated pack and the spacers between the adjacent laminated groups are orderly positioned in a Z-shaped separator in a laminating direction, an upper part and a lower part of the separator adjacent to the each spacer are separated by the each spacer; forming a laminated cell: the separator is broken at an end of the each spacer positioned in the separator to allow the each spacer and the each laminated group to separate from each other, so as to obtain the corresponding laminated cell formed by the electrode plate assembly of the each laminated group and the corresponding separator.

主权项

1. A preparation method of a laminated cell, comprising steps of:
providing a laminated pack: the laminated pack (1) comprising n laminated groups (11), the each laminated group (11) comprising m electrode plate assemblies and the numbers of the electrode plate assemblies of all the laminated groups (11) being the same or different, and n≧2, m≧2, a spacer (2) being provided between the adjacent laminated groups (11), the electrode plate assemblies of all the laminated groups (11) of the laminated pack (1) and the spacers (2) between the adjacent laminated groups (11) being orderly positioned in a Z-shaped separator (3) in a laminating direction (S), an upper part and a lower part of the separator (3) adjacent to the each spacer (2) being separated by the each spacer (2); and forming a laminated cell: the separator (3) being broken at an end of the each spacer (2) positioned in the separator (3) to allow the each spacer (2) and the each laminated group (11) to separate from each other, so as to obtain the corresponding laminated cell (SC) formed by the electrode plate assembly of the each laminated group (11) and a corresponding part of the separator (3); the each laminated cell (SC) comprising a positive electrode plate (P) and a negative electrode plate (N), or a mono-cell (BC), or combination of the mono-cell (BC) and the positive electrode plate (P) and/or the negative electrode plate (N); the positive electrode plate (P), the negative electrode plate (N), and the mono-cell (BC) being collectively referred to as the electrode plate assembly; the mono-cell (BC) being composed of the positive electrode plate (P), the negative electrode plate (N), and another separator (3′) between the positive electrode plate (P) and the negative electrode plate (N); the positive electrode plate (P) being provided with a positive electrode tab (TP), the negative electrode plate (N) being provided with a negative electrode tab (TN); the positive electrode tab (TP) and the negative electrode tab (TN) of the each laminated cell (SC) being provided on the same side or different sides in a direction perpendicular to the laminating direction (S) of the laminated pack (1) and a folding direction (F) of the Z-shaped separator (3).