Multi-tab soft package lithium ion battery cell

The utility model discloses a multi-tab soft package lithium ion battery cell, and belongs to the field of lithium ion batteries. The battery cell is formed by winding a sheet body composed of a positive plate, a first diaphragm, a negative plate and a second diaphragm which are sequentially arrange...

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Bibliographische Detailangaben
Hauptverfasser: HU QIHUI, LI CHUANYI, LI YAN, LI QIANHUAN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model discloses a multi-tab soft package lithium ion battery cell, and belongs to the field of lithium ion batteries. The battery cell is formed by winding a sheet body composed of a positive plate, a first diaphragm, a negative plate and a second diaphragm which are sequentially arranged, the positive plate is provided with a positive empty foil area and a positive active material area, the negative plate is provided with a negative empty foil area and a negative active material area, and the positive empty foil area and the negative empty foil area are free of active materials. The positive active material area and the negative active material area are provided with active materials, and one ends of the positive empty foil area, the negative empty foil area, the first diaphragm and the second diaphragm are wound to form a cell inner ring. According to the utility model, the positive empty foil region and the negative empty foil region without active substances, and one ends of the first diaphrag