Secondary battery top cover assembly, secondary battery and vehicle
AssigneeContemporary Amperex Technology Co., Limited
InventorChengyou Xing
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a secondary battery top cover assembly, a secondary battery and a vehicle. The top cover assembly includes: a top cover plate; an electrode terminal; and a short-circuit component including a deformable plate and a conductive plate disposed above the deformable plate. The deformable plate is connected to the top cover plate, and the conductive plate is connected to the electrode terminal. The conductive plate includes a body portion and a protrusion portion protruding upwardly from the body portion, the conductive plate is provided with a gas hole, and the gas hole cuts through the protrusion portion and the body portion, an inner wall of the gas hole includes an arc-shaped smooth transition portion.
Claims12
A secondary battery top cover assembly, comprising:
- a top cover plate;
- an electrode terminal;
- an insulating cover;
- and
- a short-circuit component comprising a deformable plate and a conductive plate disposed above the deformable plate, wherein the deformable plate is connected to the top cover plate, and the conductive plate is connected to the electrode terminal;
- wherein the conductive plate comprises a body portion and a protrusion portion protruding upwardly from the body portion, the conductive plate is provided with a gas hole, the gas hole cuts through the protrusion portion and the body portion;
- wherein the insulating cover comprises a body, a covering portion, and an obstructing portion, the covering portion is provided on the body, the covering portion is disposed above the conductive plate and covers the protrusion portion and the gas hole, the obstructing portion protrudes from an edge of an outer contour of the body toward the conductive plate, and the obstructing portion surrounds the covering portion and has a mouth that allows gas in the gas hole to be expelled outward;
- wherein the insulating cover further comprises a protrusion extending from the body toward the conductive plate, the protrusion comprises a surrounding portion which surrounds the covering portion, and space is formed between the surrounding portion and the covering portion;
- and
- wherein the protrusion further comprises a convoluted portion which is disposed outside a region surrounded by the surrounding portion, and the convoluted portion is arranged at the mouth in a bent configuration and extends along a direction of a curve.
Dependencies are inferred from the claim text.