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1. (WO2017152089) BINDERS FOR WET AND DRY LAMINATION OF BATTERY CELLS

Pub. No.:    WO/2017/152089    International Application No.:    PCT/US2017/020720
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Sat Mar 04 00:59:59 CET 2017
IPC: H01M 2/14
H01M 2/16
Applicants: APPLE INC.
Inventors: YOO, Mikyong
MANK, Richard M.
OH, Bookeun
Title: BINDERS FOR WET AND DRY LAMINATION OF BATTERY CELLS
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.