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二次电池及其制备方法、用电装置
InventionUnknown
15Claims · 3 independent
§ Ⅰ
Dossier Overview
Inventor
李静丽; 彭龙庆; 吉星
Filing Date
Apr 24, 2025
Publication Date
Oct 27, 2026
IPC Classification
H01M 10/058 (2010.01)H01M 10/0525 (2010.01)H01M 10/054 (2010.01)H01M 4/13 (2010.01)H01M 4/139 (2010.01)H01M 10/42 (2006.01)
本申请提供了一种二次电池及其制备方法、用电装置。二次电池，包括负极极片，所述负极极片包括：负极集流体；负极活性材料层，所述负极活性材料层位于所述负极集流体的至少一侧；所述负极活性材料层的厚度为20μm‑120μm；底涂层，所述底涂层位于所述负极集流体与所述负极活性材料层之间；所述底涂层的孔隙率为0.01％‑0.2％。由此，本申请二次电池的寿命末期(EOL)安全性能得到进一步提升。
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