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.