Battery reinforcement method
AssigneesNissan Motor Co., Ltd., Automotive Energy Supply Corporation
InventorsTakeshi Yasooka, Mitiyuki Tezuka
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Abstract
A battery reinforcement method for reinforcing a rectangular battery cell in which a battery element is disposed in a rectangular external packaging, the method includes enclosing the battery element between two rectangular external packaging sheets and sealing the rectangular external packaging sheets with a sealing part that extends along edges of the rectangular external packaging sheets so as to form the rectangular external packaging, and forming a reinforcing part outside of the sealing part on the rectangular external packaging.
Claims13
A battery reinforcement method for reinforcing a rectangular battery cell in which a battery element is disposed in a rectangular external packaging, the method comprising:
- enclosing the battery element between two rectangular external packaging sheets and sealing the rectangular external packaging sheets with a sealing part that extends along edges of the rectangular external packaging sheets so as to form the rectangular external packaging;
- forming a reinforcing part outside of the sealing part on the rectangular external packaging;
- forming each of the two rectangular external packaging sheets by coating a metal sheet with a resin;
- and
- forming the sealing part and reinforcing part independently from each other by thermocompression-bonding the resin that coats the two external packaging sheets.
(canceled)
The battery reinforcement method according to claim 9, further comprising
- detecting deformation of the portion of the edge on which the reinforcing part is to be formed, the detecting deformation being performed prior to the forming the reinforcing part on at least part of the edge of the edges of the rectangular external packaging sheets.
The battery reinforcement method according to claim 9, wherein
- the edge is in contact with a device when the battery cell is transferred to or received by the device.
The battery reinforcement method according to claim 9, further comprising
- rounding corners of the edge.
Dependencies are inferred from the claim text.