About 220 results
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https://drivepatents.com/patents/1397551 · 16 Oct 2024
The present application provides a battery, a manufacturing method and apparatus thereof, and an electric device. The battery includes: a box; a battery unit provided in the box, the battery unit including a plurality of battery cells stacked in a first di...
https://drivepatents.com/patents/1399662 · 28 Aug 2024
In a preferred aspect of the battery disclosed herein, a region encompassing five layers of the positive electrode (negative electrode) counting from one of outer surfaces at both ends of the lamination structure in the stacking direction is a first outerm...
https://drivepatents.com/patents/1366624 · 11 Jul 2024
A reform pin is provided in which one end of a head portion extending from a body portion is provided thicker than the body portion, so that a contact surface with an inner surface of an electrode assembly is reduced when an inserted reform pin is removed ...
https://drivepatents.com/patents/939970 · 27 Jul 2016
Provided is a nonaqueous electrolyte secondary battery including a flat wound electrode body (20). The flat wound electrode body (20) has a flat portion (P), a first R portion (R 1 ), and a second R portion (R 2 ). The second R portion (R 2 ) is provided o...
https://drivepatents.com/patents/949936 · 22 Jul 2015
To provide an electrode roll capable of preventing lowering of production efficiency due to active material particles that have fallen. An electrode roll (600) in which a sheet-like electrode base material (500) which is subjected to cutting to be an elect...
https://drivepatents.com/patents/963089 · 18 Feb 2015
Provided is a nonaqueous electrolyte secondary battery 10 which, in cases where separators 70 each having a heat-resistant layer 74 on only one face thereof are used, has an excellent thermal stability and thus a higher safety and reliability when the batt...
https://drivepatents.com/patents/965553 · 31 Dec 2014
The described technology has been made in an effort to provide a rechargeable battery having advantages of protecting an electrode assembly and a case from arc debris generated from a cell fuse. A rechargeable battery in accordance with exemplary embodimen...
https://drivepatents.com/patents/966815 · 3 Dec 2014
The purpose of the present invention is to obtain a secondary battery in which the insulation property between an electrode group and a battery container against an external force can be improved without lowering the battery capacity. The secondary battery...
https://drivepatents.com/patents/967932 · 29 Oct 2014
There is provided an energy storage device including a spiral electrode group in which a first electrode plate and a second electrode plate having polarity reverse to that of the first electrode plate are spirally wound with a separator interposed therebet...
https://drivepatents.com/patents/968376 · 22 Oct 2014
A rechargeable lithium ion button cell battery having a sealed housing comprises an inner casing and an outer casing , both casings have at least one flat area as top or bottom of the battery, and a round or oval sidewall vertically formed to the flat area...