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用于钠电芯界面膜调控的化成工艺
InventionUnknown
9Claims · 1 independent
§ Ⅰ
Dossier Overview
Inventor
宋高知
Filing Date
Aug 5, 2026
Publication Date
Oct 16, 2026
IPC Classification
H01M 10/054 (2010.01)H01M 10/058 (2010.01)H01M 10/42 (2006.01)
本发明涉及二次电池技术领域，公开了一种用于钠电芯界面膜调控的化成工艺，包括：在初始环境温度中施加恒定预充电电流至目标电位与额定电荷量；升温并交替施加脉冲充电电流阶段与脉冲弛豫阶段，采集弛豫阶段的电压衰减斜率以动态更新后续周期的充电电流密度；当端电压达到化成截止电压时，在提升温度并施加机械夹持压力的约束状态下保持恒压充电，本发明构筑兼具致密无机内层与高弹性有机外层的梯度异质界面膜，缓释晶格膨胀应力并抑制膜层开裂与副反应产气，降低界面阻抗，增强钠电芯的循环稳定性。
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