Composite electrode plate and battery cell using the same
AssigneeNingde Amperex Technology Limited
InventorsYi-Bo Zhang, Li Xiang, Bin Wang, Qiaoshu Hu
Life of this patent
Estimating the term…
Abstract
A composite electrode plate of increased robustness and with better electrical properties for incorporation in a battery cell includes a composite current collector, a positive active material layer, a negative active material layer, a first isolation layer, and a second isolation layer. The composite current collector is disposed between the positive active material layer and the negative active material layer. The first isolation layer connects to a surface of the positive active material layer away from the composite current collector. The second isolation layer connects to a surface of the negative active material layer away from the composite current collector.
Claims20
A composite electrode plate comprising:
- a composite current collector;
- a positive active material layer;
- a negative active material layer, the composite current collector is disposed between the positive active material layer and the negative active material layer;
- a first isolation connected to a surface of the positive active material layer away from the composite current collector;
- and
- a second isolation layer connected to a surface of the negative active material layer away from the composite current collector;
- wherein
- the composite current collector comprises:
- an insulating layer;
- a first conductive layer;
- and
- a second conductive layer, the insulating layer is disposed between the first conductive layer and the second conductive layer, and the first conductive layer is made of a material selected from a group consisting of Ni, Ti, Cu, Ag, Au, Pt, Fe, Co, Cr, W, Mo, Al, Mg, K, Na, Ca, Sr, Ba, Si, Ge, Sb, Pb, In, Zn, and any combination thereof;
- the second conductive layer is made of a material selected from a group consisting of Ni, Ti, Cu, Ag, Au, Pt, Fe, Co, Cr, W, Mo, Al, Mg, K, Na, Ca, Sr, Ba, Si, Ge, Sb, Pb, In, Zn, and any combination thereof.
A battery cell comprising:
- a composite electrode plate, the composite electrode plate wound or stacked to form the battery cell, the composite electrode plate comprising:
- a composite current collector;
- a positive active material layer;
- a negative active material layer, the composite current collector is disposed between the positive active material layer and the negative active material layer;
- a first isolation layer connected to a surface of the positive active material layer away from the composite current collector;
- and
- a second isolation layer connected to a surface of the negative active material layer away from the composite current collector;
- wherein
- the composite current collector comprises:
- an insulating layer;
- a first conductive layer;
- and
- a second conductive layer, the insulating layer is disposed between the first conductive layer and the second conductive layer, and the first conductive layer is made of a material selected from a group consisting of Ni, Ti, Cu, Ag, Au, Pt, Fe, Co, Cr, W, Mo, Al, Mg, K, Na, Ca, Sr, Ba, Si, Ge, Sb, Pb, In, Zn, and any combination thereof;
- the second conductive layer is made of a material selected from a group consisting of Ni, Ti, Cu, Ag, Au, Pt, Fe, Co, Cr, W, Mo, Al, Mg, K, Na, Ca, Sr, Ba, Si, Ge, Sb, Pb, In, Zn, and any combination thereof.
Dependencies are inferred from the claim text.