Electrochemical devices and electrical devices
By designing a specific bending and arrangement of conductive segments in the button cell, the problem of the tabs easily breaking when the button cell is dropped has been solved, resulting in a longer service life and higher energy density.
CN119742508BActive Publication Date: 2026-05-26NINGDE AMPEREX TECHNOLOGY LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGDE AMPEREX TECHNOLOGY LTD
- Filing Date
- 2023-03-27
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Button batteries are prone to breakage of the tabs when dropped, which affects their lifespan.
Method used
An electrochemical device has been designed, comprising a housing, an electrode assembly, an electrical connector, and a first conductive element. The conductive segments are connected by a specific bending and arrangement method, which reduces redundant length, enhances connection reliability, disperses stress, and improves the drop resistance of the tabs.
Benefits of technology
It effectively prevents tab breakage, extends the service life of electrochemical devices, improves energy density and connection strength, and reduces wear.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN119742508B_ABST
Abstract
This application relates to the field of electrochemical device technology, and discloses an electrochemical device and an electrical device thereon. The electrochemical device includes a housing, an electrode assembly, an electrical connector, and a first conductive element. The housing includes a bottom shell and a top shell, which together form a cavity. The top shell has a through hole communicating with the cavity. The electrode assembly is housed within the cavity. The electrical connector is disposed in the through hole through an insulating layer. The first conductive element includes a first conductive segment electrically connected to the electrode assembly and extending beyond the electrode assembly, a second conductive segment bent relative to the first conductive segment toward the electrode assembly, and a third conductive segment bent relative to the second conductive segment toward the distance from the electrode assembly and electrically connected to the electrical connector. Viewed along a first direction, the second and third conductive segments are partially separated. Through the above method, the electrochemical device provided in this application can improve the situation where the tabs of the electrochemical device are easily broken when dropped, thereby increasing the service life of the electrochemical device.
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