Separators, electrode assemblies, secondary batteries and power consumption devices
The separator with elastic deformation features addresses the volume expansion issue in secondary batteries by absorbing stress and maintaining adhesion, improving cycle performance and stability.
JP2026517870APending Publication Date: 2026-06-02CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2023-05-09
- Publication Date
- 2026-06-02
Smart Images
Figure 2026517870000001_ABST
Abstract
This application provides a separator, an electrode assembly, a secondary battery, and a power consumption device, wherein the coefficient of restitution k of the separator is 10% to 90%, where k = (H0 - H1) / H0 × 100%, where H0 represents the initial thickness of the separator at a temperature of 25°C, and H1 represents the thickness of the separator after compressing the separator having the initial thickness H0 with a load of 0.8 MPa for 60 seconds at a temperature of 25°C, then releasing the load and relaxing for 60 seconds. The separator of this application has excellent resilience.
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