Battery negative electrode sheet and battery
By setting alternating grooves and holes on the negative electrode of a lithium-ion battery, the problem of poor wettability is solved, the uniformity and wettability of electrolyte penetration are improved, and the battery's service life and performance stability are extended.
WO2026137619A1PCT designated stage Publication Date: 2026-07-02EVE ENERGY CO LTD
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- EVE ENERGY CO LTD
- Filing Date
- 2025-03-21
- Publication Date
- 2026-07-02
Smart Images
Figure CN2025084156_02072026_PF_FP_ABST
Abstract
A battery negative electrode sheet and a battery. The battery negative electrode sheet comprises a current collector and an active layer; the active layer is applied onto the surface of at least one side of the current collector; the active layer is provided with a plurality of groove structures sequentially arranged at intervals along the length direction of the current collector; the groove structures extend along the width direction of the current collector; the plurality of groove structures divide the active layer into a plurality of regions along the length direction of the current collector; and each region is provided with a plurality of hole structures.
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