ENERGY STORAGE DEVICE
3 Assignments
0 Petitions
Accused Products
Abstract
An energy storage device includes a positive electrode terminal, a first electrode body and a second electrode body, and a positive electrode current collector electrically connecting the positive electrode terminal and the first and second electrode bodies. The positive electrode current collector includes a terminal connection portion electrically connected to the positive electrode terminal, inner electrode body connection portions connected to the first and second electrode bodies, and a coupling portion extending from an end of the terminal connection portion and coupling the terminal connection portion and the inner electrode body connection portions. The coupling portion has a substantially trapezoidal shape with a width at a connection end with the end of the terminal connection portion being larger than a width at a connection end with the inner electrode body connection portions.
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Citations
15 Claims
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1-10. -10. (canceled)
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11. An energy storage device comprising:
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an electrode terminal; first and second electrode bodies, each of the first and second electrode bodies comprising a positive electrode, a negative electrode, and a separator; and a current collector electrically connecting the electrode terminal and the first and second electrode bodies, wherein the current collector includes a terminal connection portion electrically connected to the electrode terminal, two electrode body connection portions connected to the first and second electrode bodies, respectively, and a coupling portion extending from an end of the terminal connection portion and coupling the terminal connection portion and the two electrode body connection portions, and wherein when viewed parallel to a direction in which the coupling portion extends from the end of the terminal connection portion, the coupling portion is located between the first and second electrode bodies. - View Dependent Claims (12)
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13. An energy storage device comprising:
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an electrode terminal; first and second electrode bodies, each of the first and second electrode bodies comprising a positive electrode, a negative electrode, and a separator wound around a winding axis; and a current collector electrically connecting the electrode terminal and the first and second electrode bodies, wherein the current collector includes a terminal connection portion electrically connected to the electrode terminal, two outer legs extending from a side of the terminal connection portion, the side of the terminal connection portion being parallel to the winding axis, a coupling portion extending from an end of the terminal connection portion, the end of the terminal connection portion being perpendicular to the winding axis and, two inner legs extending from the coupling portion between the two outer legs. - View Dependent Claims (14, 15)
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Specification