Title:
METHODS OF WELDING A BONDING CONNECTOR OF A CONTACT PLATE TO A BATTERY CELL TERMINAL
Document Type and Number:
WIPO Patent Application WO/2018/071823
Kind Code:
A3
Abstract:
Embodiments are directed to establishing a direct electrical bond between a bonding connector of a contact plate and a battery cell in a battery module. In a first embodiment, an oscillating laser is used to weld the bonding connector to a battery cell terminal over a target area over which the bonding connector makes non-flush contact. In a second embodiment, the bonding connector is flattened to reduce a gap between the bonding connector and the target area on the battery cell terminal, and then laser-welded (e.g., using an oscillating or non-oscillating laser). In a third embodiment, at least one hold-down mechanism is applied over the bonding connector to secure the bonding connector to the battery cell terminal, after which the bonding connector is laser-welded to the battery cell terminal.
Inventors:
FEES HEINER (US)
TRACK ANDREAS (US)
EICHHORN ALEXANDER (US)
MAISCH RALF (US)
DAMASKE JÖRG (US)
EBERHARD MARTIN (US)
TRACK ANDREAS (US)
EICHHORN ALEXANDER (US)
MAISCH RALF (US)
DAMASKE JÖRG (US)
EBERHARD MARTIN (US)
Application Number:
PCT/US2017/056597
Publication Date:
May 24, 2018
Filing Date:
October 13, 2017
Export Citation:
Assignee:
INEVIT LLC (US)
International Classes:
H01M50/528; H01M50/213; H01M50/296; H01M50/505; H01M50/509; H01M50/522; H01M50/529; H01M50/244; H01M50/264; H01M50/271
Foreign References:
| EP2613379A1 | 2013-07-10 | |||
| US20160193694A1 | 2016-07-07 | |||
| US20150099152A1 | 2015-04-09 | |||
| US20120052364A1 | 2012-03-01 | |||
| US9147875B1 | 2015-09-29 | |||
| US4322597A | 1982-03-30 | |||
| US20120129010A1 | 2012-05-24 |
Attorney, Agent or Firm:
PODHAJNY, Daniel et al. (US)
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