Invention Grant
- Patent Title: Binders for wet and dry lamination of battery cells
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Application No.: US15727988Application Date: 2017-10-09
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Publication No.: US10074838B2Publication Date: 2018-09-11
- Inventor: Mikyong Yoo , Richard M. Mank , Bookeun Oh
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Polsinelli PC
- Main IPC: H01M2/16
- IPC: H01M2/16 ; H01M4/133 ; H01M4/66 ; H01M10/0525 ; H01M10/0585 ; H01M10/0587

Abstract:
Cell stacks are presented that include binders for wet and dry lamination processes. The cell stacks, when laminated, produce battery cells (or portions thereof). The cell stacks include a cathode having a cathode active material disposed on a cathode current collector. The cell stacks also include an anode having an anode active material disposed on an anode current collector. The anode is oriented towards the cathode such that the anode active material faces the cathode active material. A separator is disposed between the cathode active material and the anode active material and comprising a binder comprising a PVdF-HFP copolymer. In certain instances, an electrolyte fluid is in contact with the separator. Methods of laminating the cell stacks are also presented.
Public/Granted literature
- US20180034030A1 BINDERS FOR WET AND DRY LAMINATION OF BATTERY CELLS Public/Granted day:2018-02-01
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