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US 10,833,298 B2Granted
Energy storage device
AssigneeGS Yuasa International Ltd.
InventorsKenji Kawate, Takeshi Kawahara, Tomoko Nishikawa
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Abstract
An energy storage device includes an electrode body in which an electrode is wound, a case that stores the electrode body, and spacers (side spacers) interposed between the case and the electrode body. The spacers each have an opening that exposes a portion of faces of curved portions of the electrode body from one end to the other end of the electrode body in a winding axis direction of the electrode body.
Claims16
An energy storage device, comprising:
- an electrode body in which an electrode is wound;
- a case configured to store the electrode body;
- and
- a spacer interposed between the case and the electrode body,
- wherein the spacer includes an opening extending in a winding axis direction of the electrode body, and
- wherein a portion of a face of a curved portion of the electrode body is disposed in the opening, the portion of the face of the curved portion of the electrode body continuously extending from one end to an other end of the electrode body in the winding axis direction of the electrode body.
3 more elements
An energy storage device, comprising:
- an electrode body in which an electrode is wound;
- a case configured to store the electrode body;
- and
- a spacer interposed between the case and the electrode body,
- wherein the spacer includes an opening configured to expose a portion of a face of a curved portion of the electrode body, the portion of the face of the curved portion of the electrode body continuously extending from one end to an other end of the electrode body in a winding axis direction of the electrode body.
2 more elements
An energy storage device, comprising:
- an electrode body in which an electrode is wound;
- a case configured to store the electrode body;
- and
- a spacer interposed between the case and the electrode body,
- wherein the spacer includes an opening configured to expose a portion of a face of a curved portion of the electrode body from one end to an other end of the electrode body in a winding axis direction of the electrode body,
- wherein the electrode body includes a main body and positive and negative tab portions protruding from one end of the main body in the winding axis direction of the electrode body, and
- wherein the portion of the face of the curved portion of the electrode body continuously extends from the one end to the other end of the electrode body in the winding axis direction of the electrode body.
4 more elements
Dependencies are inferred from the claim text.