公开(公告)号：US20250112230A1

公开(公告)日：2025-04-03

申请号：US18890479

申请日：2024-09-19

Applicant: Apple Inc.

Inventor： Jian Hong ,  Jinjun Shi

IPC: H01M4/38 ,  H01M4/02 ,  H01M4/04 ,  H01M4/36 ,  H01M10/04 ,  H01M50/491

Abstract: A battery pre-lithiation assembly includes an anode having first holes and a cathode having second holes. The first holes and the second holes are configured to enable an electrolyte to pass therethrough. Further, the first holes and the second holes are configured to enable movement of Li+ ions associated with the lithium metal during a pre-lithiation process. The lithium metal may be coated on the anode (e.g., on active material of the anode), or the lithium metal may correspond to at least one lithium metal electrode, such as first and second lithium metal electrodes disposed on opposing sides of an electrode stack (e.g., a jelly roll) including the anode, the cathode, and a separator.

公开(公告)号：US20240106011A1

公开(公告)日：2024-03-28

申请号：US18367987

申请日：2023-09-13

Applicant: Apple Inc.

Inventor： Jian Hong ,  Shabab Amiruddin ,  Karthikeyan Kumaresan

IPC: H01M10/42 ,  H01M4/134 ,  H01M4/38 ,  H01M10/04 ,  H01M50/609

CPC classification number: H01M10/4235 ,  H01M4/134 ,  H01M4/382 ,  H01M10/0431 ,  H01M50/609

Abstract: Described are pre-lithiated anode active materials, lithium-ion electrochemical cells comprising pre-lithiated anode active materials, methods for preparing pre-lithiated anode active materials, and lithium-ion electrochemical cells comprising pre-lithiated anode active materials. The disclosed processes are useful for adapting various methods for manufacturing for lithium-ion electrochemical cells with modifications to achieve pre-lithiation. The pre-lithiation process used by some embodiments described herein include treating an incomplete lithium-ion cell structure with a lithiation redox agent prior to injecting electrolyte into the cell, using techniques similar to the electrolyte injection process.