Power storage device
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsSHINICHI SAKAMOTO, KIYOMI KOZUKI, SHINYA GESHI
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Abstract
A power storage device including: an electrode body including a positive electrode and a negative electrode being wound with a separator interposed therebetween; and a negative electrode current collector plate joined to the negative electrode disposed at one end in an axial direction of the electrode body. The current collector plate includes a core material joint part extending in a radiation direction of the electrode body, and including a surface facing the negative electrode joined to the negative electrode in the axial direction, and eaves parts formed on both end parts in a circumferential direction of the core material joint part, and extending toward the negative electrode in the axial direction.
Claims7
A power storage device comprising:
- an electrode body including a first electrode plate and a second electrode plate which are wound with a separator interposed between the first electrode plate and the second electrode plate;
- and
- a current collector plate joined to a part of the first electrode plate, the part being disposed at one end in an axial direction of the electrode body,
- the current collector plate including:
- a joint part extending in a radial direction of the electrode body, and including a surface facing the first electrode plate joined to the first electrode plate in the axial direction, and eaves parts disposed on both end parts in a circumferential direction of the joint part, and extending toward the first electrode plate in the axial direction.
Dependencies are inferred from the claim text.