公开(公告)号：US20250007098A1

公开(公告)日：2025-01-02

申请号：US18342224

申请日：2023-06-27

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Zijie Lu ,  Minghong Liu ,  Celia Cunningham

IPC: H01M50/46 ,  H01M4/66 ,  H01M50/431 ,  H01M50/44

Abstract: The present disclosure relates to a secondary solid-state battery. This battery includes a current collector, comprising a poly 3,4-ethylenedioxythiphene polystyrene sulfonate (PEDOT-PSS) layer, which is in direct areal contact with a negative electrode. The battery also includes a positive electrode and a solid electrolyte separator between the positive and negative electrodes. The PEDOT-PSS layer can compress and expand in response to the expansion and contraction of the negative electrode. In some embodiments, the current collector may include a carrier film onto which the PEDOT-PSS layer is coated. A cell stack of multiple assemblies further comprises the positive electrode, solid electrolyte separator, negative electrode, and current collector with some adjacent pairs separated by carbon fiber papers.

公开(公告)号：US20250006948A1

公开(公告)日：2025-01-02

申请号：US18342206

申请日：2023-06-27

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Zijie Lu ,  Minghong Liu ,  Celia Cunningham

IPC: H01M4/80 ,  H01M4/66 ,  H01M10/0525

Abstract: The present disclosure relates to a secondary solid-state battery, with a current collector configuration that includes a metal foam sandwiched between two microporous carbon layers. The current collector directly interfaces with both the negative electrode and the solid electrolyte separator. Alternatively, the current collector can comprise an elastomer sandwiched between a pair of metal foil layers, enabling responsive expansion and contraction in accordance with the electrodes' changes during charge-discharge cycles. Another embodiment contemplates a carbon fiber paper current collector situated between two microporous layers.