IMPROVED CELL CASSETTE WITH INBUILT CELL TAB STRESS RELIEVING STRUCTURE

摘要

This invention presents a cassette design v to allow the cell tabs to acquire stress relieving structure (4) which is of great importance for vibration resistance. In this design, the cell tabs (2) acquire a special stress relieving structure (4) which provides vibration resistance and prevents the weld failure between cell tabs (2) and current collector (7). Such kind of vibration resistant packaging strategy is very important for transportation batteries. This invention also discusses the packaging strategy of curved tabs. A cassette design assembly process which excludes the extra efforts needed to create stress relieving structure (4) in the tab (2). This design acts as a mould for tab (2) to acquire stress relieving structure (4) when packaged. Tab support feature is in-built in the cassette.