公开(公告)号：US11223036B2

公开(公告)日：2022-01-11

申请号：US16686889

申请日：2019-11-18

Applicant: Apple Inc.

Inventor： Zuqin Liu ,  Richard M. Mank ,  Hyea Kim ,  Hongli Dai ,  Sunho Kang ,  Ji-Guang Zhang ,  Ran Yi ,  Qiuyan Li ,  Xiaolin Li ,  Wu Xu ,  Rajankumar L. Patel ,  Hyung-Seok Lim ,  Chongmin Wang ,  Langli Luo ,  Yang He

IPC: H01M4/134 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/02

Abstract: An anode active material comprises a silicon-carbon secondary particle comprising a composite having an exterior conformal carbon coating and formed of type I primary particles. Each type I primary particle comprises a core particle of interconnected silicon, the interconnected silicon formed of nano-sized silicon particles each connected to at least one other particle, inner pores internal to the core particle and defined by the interconnected silicon, an internal carbon coating on internal wall surfaces of the inner pores and a conformal carbon coating on the core particle.

公开(公告)号：US20200161635A1

公开(公告)日：2020-05-21

申请号：US16686889

申请日：2019-11-18

Applicant: Apple Inc.

Inventor： Zuqin Liu ,  Richard M. Mank ,  Hyea Kim ,  Hongli Dai ,  Sunho Kang ,  Ji-Guang Zhang ,  Ran Yi ,  Qiuyan Li ,  Xiaolin Li ,  Wu Xu ,  Rajankumar L. Patel ,  Hyung-Seok Lim ,  Chongmin Wang ,  Langli Luo ,  Yang He

IPC: H01M4/134 ,  H01M4/133 ,  H01M10/0525

Abstract: An anode active material comprises a silicon-carbon secondary particle comprising a composite having an exterior conformal carbon coating and formed of type I primary particles. Each type I primary particle comprises a core particle of interconnected silicon, the interconnected silicon formed of nano-sized silicon particles each connected to at least one other particle, inner pores internal to the core particle and defined by the interconnected silicon, an internal carbon coating on internal wall surfaces of the inner pores and a conformal carbon coating on the core particle.