Secondary battery
AssigneeMurata Manufacturing Co., Ltd.
InventorsNaoto AKIZUKI, Masahiro OTSUKA, Morimichi OZAKI
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Abstract
Provided is a secondary battery including an electrode assembly and an electrolyte enclosed in an exterior case. The electrode assembly includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. In the secondary battery, the electrode assembly includes current collecting tabs of the positive electrode and the negative electrode protruding from the same end face, and the current collecting tabs of the positive electrode and the negative electrode are positioned at different distances from a central axis along a direction.
Claims20
A secondary battery comprising an electrode assembly including a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode, and an electrolyte enclosed in an exterior case, wherein
- the electrode assembly includes current collecting tabs of the positive electrode and the negative electrode, the current collecting tabs protruding from a same end face of the electrode assembly, wherein
- the current collecting tabs of the positive electrode and the negative electrode are positioned at different distances from a central axis along a direction in which the current collecting tabs of the positive electrode and the negative electrode protrude in plain view of the electrode assembly, wherein
- the current collecting tabs of the positive electrode and the negative electrode each correspond to one of an outer current collecting tab relatively far from the central axis and an inner current collecting tab relatively close to the central axis in plain view of the electrode assembly, wherein
- a length dimension of the outer current collecting tab is larger than the inner current collecting tab, and wherein
- the current collecting tabs of the positive electrode and the negative electrode each have a bent shape.
Dependencies are inferred from the claim text.