US Patent No. 10,219,395

POWER STORAGE UNIT AND ELECTRONIC DEVICE INCLUDING THE SAME


Patent No. 10,219,395
Issue Date February 26, 2019
Title Power Storage Unit And Electronic Device Including The Same
Inventorship Ryota Tajima, Kanagawa (JP)
Yuugo Goto, Kanagawa (JP)
Yumiko Yoneda, Kanagawa (JP)
Junya Goto, Kanagawa (JP)
Takuya Miwa, Kanagawa (JP)
Assignee Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken (JP)

Claim of US Patent No. 10,219,395

1. A power storage unit comprising:a first electrode plate;
a first insulating sheet, wherein the first electrode plate is covered with the first insulating sheet folded in two;
a second electrode plate adjacent to the first electrode plate with a first part of the first insulating sheet placed therebetween;
an exterior body covering the first electrode plate, the first insulating sheet, and the second electrode plate;
a first sealing material sealing a first edge of the exterior body; and
a second sealing material sealing a second edge of the exterior body, the second edge of the exterior body facing the first edge of the exterior body,
wherein a part of the first electrode plate and edges of the first insulating sheet are covered by the first sealing material,
wherein a part of the second electrode plate is covered by the second sealing material, and
wherein the first electrode plate and the first insulating sheet slide together in the exterior body when the exterior body is bent.