Provided is a cylindrical battery with which it is possible to suppress an increase in weight while increasing capacity. A cylindrical battery includes: an electrode body comprising a positive electrode and a negative electrode, which are wound together via a separator; an electrolyte; a bottomed cylindrical outer can for accommodating the electrode body and the electrolyte; and a sealing body that is fixed to an open end portion of the outer can by swaging and is for sealing the outer can. In regard to the outer can, the outer diameter of a body part for accommodating the electrode body is 20 mm or greater, and the outer diameter of the open end portion for accommodating the sealing body is less than the outer diameter of the body part.

A battery cell includes an electrode assembly, a housing, a cover plate, and a support member. The housing includes a first electrode plate and a second electrode plate. At least a part of the first electrode plate is stacked with the second electrode plate. The housing is provided with an opening and an accommodation cavity configured to accommodate the electrode assembly. The housing includes a side plate. The cover plate is perpendicular to the side plate and configured to close the opening. At least a part of the support member is disposed between the side plate and the electrode assembly, and the support member is configured to support the electrode assembly so that a spacing between an end, facing the side plate, of the first electrode plate and the side plate in a first direction is greater than a preset value. The first direction being a direction perpendicular to the side plate.

A battery cell includes an electrode assembly, a housing, a cover plate, and a support member. The housing includes a first electrode plate and a second electrode plate. At least a part of the first electrode plate is stacked with the second electrode plate. The housing is provided with an opening and an accommodation cavity configured to accommodate the electrode assembly. The housing includes a side plate. The cover plate is perpendicular to the side plate and configured to close the opening. At least a part of the support member is disposed between the side plate and the electrode assembly, and the support member is configured to support the electrode assembly so that a spacing between an end, facing the side plate, of the first electrode plate and the side plate in a first direction is greater than a preset value. The first direction being a direction perpendicular to the side plate.

A main object of the present disclosure is to provide a battery in which wrinkles in its outer package is prevented from generating. The present disclosure achieves the object by providing a battery including: an internal element including at least a power generating element, and a laminate-type outer package in which the internal element is sealed; wherein the internal element includes a groove structure; and the battery includes a storing part where a part of the outer package is stored in the groove structure.

A main object of the present disclosure is to provide a battery in which wrinkles in its outer package is prevented from generating. The present disclosure achieves the object by providing a battery including: an internal element including at least a power generating element, and a laminate-type outer package in which the internal element is sealed; wherein the internal element includes a groove structure; and the battery includes a storing part where a part of the outer package is stored in the groove structure.

Provided are an electronic device and a manufacturing method therefor. The electronic device includes a first housing, a second housing, a cover plate, and a cell. The first housing includes a bottom plate and a first enclosure wall annularly disposed on a side of the bottom plate. The second housing includes a top plate and a second enclosure wall annularly disposed on a side of the top plate. The second enclosure wall is sleeved on an outer side wall of the first enclosure wall. The top plate is provided with an exit hole. The cover plate plugs the exit hole. One of a positive tab or a negative tab of the cell is connected to a part of the cover plate facing the exit hole. The other one of the positive tab or the negative tab is sandwiched between the first enclosure wall and the second enclosure wall.

In one embodiment, a battery includes an exterior unit, an electrode group, an electrode terminal, tab bundles and a lead. The electrode group is housed in an interior cavity of the exterior unit, and the electrode terminal is exposed to an outside. Current collecting tabs are stacked in the thickness direction of the electrode group in each of the tab bundles having the same polarity. The tab bundles protrude from the electrode group to the same side in the length direction of the electrode group. The lead establishes an electric connection between the respective tab bundles and the electrode terminal. The tab bundles are bonded to the lead at positions deviated from one another in the thickness direction, and are mounted on the lead from the same side in the thickness direction.

In one embodiment, a battery includes an exterior unit, an electrode group, an electrode terminal, tab bundles and a lead. The electrode group is housed in an interior cavity of the exterior unit, and the electrode terminal is exposed to an outside. Current collecting tabs are stacked in the thickness direction of the electrode group in each of the tab bundles having the same polarity. The tab bundles protrude from the electrode group to the same side in the length direction of the electrode group. The lead establishes an electric connection between the respective tab bundles and the electrode terminal. The tab bundles are bonded to the lead at positions deviated from one another in the thickness direction, and are mounted on the lead from the same side in the thickness direction.

The present invention features a pouch comprising a single layer of polymer material having a first surface and a second surface, wherein the second surface is disposed to define an interior space surrounded by the second surface of the pouch, and wherein the first surface is disposed to define the exterior of the pouch, wherein the single layer has a uniform thickness between the first surface and second surface, wherein the polymer material comprises a liquid crystal polymer, and wherein the pouch has a water vapor transmission rate of less than 0.1 g/m2/day between the interior space and the first surface of the pouch.

The present application provides a self-powered drug-delivery device. The device includes a chamber having a wall. The chamber contains a fluid and is in connection with an administration means. The device also includes a displacement-generating battery cell. The device further includes an electrically-controlled battery unit, which includes the displacement-generating battery cell coupled to the chamber by a coupling means. The displacement-generating battery cell includes an element that changes shape as a result of charge or discharge of the battery cell so as to cause a displacement within the battery unit. The arrangement of the battery unit, the coupling means, the wall, the chamber, and the administration means is such that the displacement derived from the battery unit is conveyed by the coupling means to cause displacement of the wall of the chamber such that the fluid is expelled from the chamber to force a drug towards the administration means.