公开(公告)号：US11811063B2

公开(公告)日：2023-11-07

申请号：US17108363

申请日：2020-12-01

Applicant: Apple Inc.

Inventor： Shawn William Snyder ,  Terry Tiegs ,  Jeffrey J. Kelly ,  Damon E. Lytle ,  Bernd Jurgen Neudecker ,  Jianer Bao ,  Mona Shirpour

IPC: H01M4/62 ,  H01M10/052 ,  H01M4/136 ,  H01M4/38 ,  H01M4/131 ,  H01M4/485 ,  H01M4/58

CPC classification number: H01M4/62 ,  H01M4/131 ,  H01M4/136 ,  H01M4/382 ,  H01M4/485 ,  H01M4/5825 ,  H01M10/052

Abstract: A solid-state cathode for a solid-state electrochemical cell includes an electrochemically active cathode material and one or more elemental dopant residing in grain boundaries of the electrochemically active cathode material. The grain boundaries contain at least 0.2 wt % of the one or more elemental dopant and the one or more elemental dopant is less than 10 wt % of the solid-state cathode. The solid-state cathode does not have liquid, gel and polymer materials.

公开(公告)号：US10784506B1

公开(公告)日：2020-09-22

申请号：US16113090

申请日：2018-08-27

Applicant: Apple Inc.

Inventor： Shawn W. Snyder ,  Damon E. Lytle ,  Jeffrey J. Kelly ,  Ronald D. Brost ,  Sandeep Rekhi ,  Bernd Jurgen Neudecker ,  Terry Tiegs

IPC: H01M4/36 ,  H01M4/48 ,  H01M4/525 ,  H01M10/052 ,  H01M4/38 ,  H01M10/0585 ,  H01M4/505 ,  H01M4/485

Abstract: A cathode for a solid-state battery comprises a composite cathode active material formed of a layered lithium cobalt oxide (LCO) in a solid solution matrix of lithium oxide (Li2O) and a cobalt oxide phase. For example, the composite cathode active material can be layered LCO in a solid solution matrix of one of Li2O—LixCo1-xO—Co3O4, Li2O—LixCo1-xO and Li2O—Co3O4, with 0≤x≤0.5. The LCO is at least 80 wt. % of the composite cathode active material. The cathode is a sintered solid-state cathode wafer that is free-standing, upon which solid-state battery cells are fabricated.

公开(公告)号：US20210234170A1

公开(公告)日：2021-07-29

申请号：US17108363

申请日：2020-12-01

Applicant: Apple Inc.

Inventor： Shawn William Snyder ,  Terry Tiegs ,  Jeffrey J. Kelly ,  Damon E. Lytle ,  Bernd Jurgen Neudecker ,  Jianer Bao ,  Mona Shirpour

IPC: H01M4/62 ,  H01M10/052 ,  H01M4/136 ,  H01M4/58 ,  H01M4/131 ,  H01M4/485 ,  H01M4/38

Abstract: A solid-state cathode for a solid-state electrochemical cell includes an electrochemically active cathode material and one or more elemental dopant residing in grain boundaries of the electrochemically active cathode material. The grain boundaries contain at least 0.2 wt % of the one or more elemental dopant and the one or more elemental dopant is less than 10 wt % of the solid-state cathode. The solid-state cathode does not have liquid, gel and polymer materials.