Method for Treating Electrode Tabs of Crude Cell for Lithium Secondary Battery, and Crude Cell and Lithium Secondary Battery According to the Method

• US 20080028598A1
• Filed: 10/12/2007
• Published: 02/07/2008
• Est. Priority Date: 06/12/2002
• Status: Abandoned Application

• Current Assignee: SolarEdge Technologies Korea Co., Ltd. (Solaredge Technologies Incorporated)
• Original Assignee: Kokam Company Limited (Solaredge Technologies Incorporated)
• Inventors: Hong, Ji-Jun
• Application Number:
  US11/871,175
• Publication Number:
  US 20080028598A1
• Time in Patent Office: Days
• US Class Current: 29/623.1
• CPC Class Codes: H01M 10/0431 Cells with wound or folded electrodes H01M10/045 takes precedence
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/0583 of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y10T 29/49108 Electric battery cell making
• CPC Class Codes: Y10T 29/49114 including adhesively bonding

Abstract

A method for treating electrode tabs of a crude cell for a lithium secondary battery, a crude cell for a lithium secondary battery manufactured according to the method, and a lithium secondary battery employing the crude cell are disclosed. The method for treating electrode tabs of a crude cell provided with a plurality of anode plates having respective anode grids, a plurality of anode plates having respective anode grids includes the steps of: (a) welding a tab member to an end of a grid of the crude cell to create a welded portion; and (b) attaching an insulating tape to the circumference of the electrode tab so that the insulating tape can wrap around the electrode tab, which is formed by the welded portion.

Claims

1. A method of treating electrode tabs of a crude cell for a lithium secondary battery including the steps of:

(a) welding a tab member to an end of a grid of said crude cell to create a welded portion;

(b) attaching an insulating tape to the circumference of an electrode tab so that said insulating tape can wrap around said electrode tab which is formed by said welded portion.