Flexible battery
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsMitsuhiro Iseri, Tomohiro Ueda, Yuya Asano, Haruhisa Yagi
Life of this patent
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Abstract
A thin pouch battery, which is used as a power source of a portable electronic apparatus, a portable electronic terminal, or the like, includes protrusions, into which an electrode group is inserted, formed in both a laminate film on the upper side and a laminate film on the lower side. Then, concentrically concave and convex wave shapes (concentric crest ridges or trough furrows) are formed on the top surface of each of the protrusions such that the protrusion can extend or shrink in any direction, or the protrusion has a side surface that is gradually inclined and a wave shape is formed on the side surface of the protrusion.
Claims8
A battery comprising:
- laminate films that interpose an electrode group including an electrode, a separator, and an electrolyte,
- wherein, on a top surface of a protrusion of the laminate films, in which the electrode group is interposed therebetween, a plurality of concave and convex portions, which are not continuous in straight lines from one end of the top surface to the other end thereof, are formed,
- wherein the plurality of concave or convex portions are in a state of being alternately parallel to side surfaces of the protrusion in the right-left direction and to side surfaces thereof in the front-rear direction, and of being continuous in a step shape.
Dependencies are inferred from the claim text.