Lithium ion battery pole piece and lithium ion battery with same

The utility model discloses a lithium ion battery pole piece and a lithium ion battery with the same. The lithium ion battery pole piece comprises a coating area, first blank areas and a second blank area, wherein two surfaces of the coating area are coated with active substances; the first blank ar...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHAN SHIYING, LI HAIJUN, MA MEIPIN
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The utility model discloses a lithium ion battery pole piece and a lithium ion battery with the same. The lithium ion battery pole piece comprises a coating area, first blank areas and a second blank area, wherein two surfaces of the coating area are coated with active substances; the first blank areas are located at two ends of the pole piece; two surfaces of the first blank areas are not coated with the active substances; the first blank areas are wound and laminated and then are led out as tabs; the second blank area is arranged in the middle of the pole piece; and two surfaces of the second blank area are not coated with the active substances. According to the lithium ion battery pole piece disclosed by the utility model, a blank current collector is arranged in the middle of the pole piece, and the permeability of electrolyte which is injected in a liquid injection process in the subsequent procedure when penetrating through the blank current collector can be increased, so that the probability of uneven electrolyte absorption is reduced.