公开(公告)号：US11811051B2

公开(公告)日：2023-11-07

申请号：US17028278

申请日：2020-09-22

Applicant: Apple Inc.

Inventor： Alan A. Ritchie ,  Karl M. Brown ,  Lin Ma ,  Korhan Demirkan ,  Andrew Basile ,  Richard M. Mank ,  Bernd Jurgen Neudecker

IPC: H01M4/134 ,  H01M4/38 ,  H01M4/40 ,  H01M10/052 ,  H01M10/0565 ,  H01M10/0568 ,  H01M4/36 ,  H01M50/414 ,  H01M50/46 ,  H01M50/449 ,  H01M4/02

CPC classification number: H01M4/134 ,  H01M4/366 ,  H01M4/382 ,  H01M4/405 ,  H01M10/052 ,  H01M10/0565 ,  H01M10/0568 ,  H01M50/414 ,  H01M50/449 ,  H01M50/46 ,  H01M2004/027 ,  H01M2300/0082 ,  H01M2300/0094

Abstract: An electrochemical cell has a cathode having a cathode current collector and a cathode active material, an anode having an anode current collector, lithium metal seed, and an anode cap on the lithium metal seed, a liquid electrolyte, a separator between the cathode active material and the anode active material, and a polymer electrolyte lamination layer bonding the anode to the separator. The polymer electrolyte lamination layer is formulated using a crosslinked polymer, a lithium salt, a plasticizer, and an anode additive. The anode cap and the polymer electrolyte lamination layer work together to produce densely plated lithium metal between the lithium metal seed and the anode cap with little or no external pressure.

公开(公告)号：US10741835B1

公开(公告)日：2020-08-11

申请号：US16102863

申请日：2018-08-14

Applicant: Apple Inc.

Inventor： Karl M. Brown ,  Alan A. Ritchie

IPC: H01M4/66 ,  H01M4/38 ,  H01M4/80 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/02 ,  H01M4/62 ,  H01M4/36

Abstract: An anode for a lithium metal battery includes a current collector, a seed layer deposited onto the current collector, the seed layer comprising a seed material selected to promote electrochemical plating of metallic lithium onto the seed layer, a separator, a host structure between the seed layer and the separator, the host structure having void spaces configured to host metallic lithium during charging, a first adhesion layer bonding the host structure to the seed layer, and a second adhesion layer bonding the host structure to the separator.

公开(公告)号：US20240178449A1

公开(公告)日：2024-05-30

申请号：US18434918

申请日：2024-02-07

Applicant: APPLE INC.

Inventor： Alan A. Ritchie ,  Karl M. Brown ,  Andrew Basile ,  Bernd Jurgen Neudecker

IPC: H01M10/0567 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0028

Abstract: Liquid electrolytes for electrochemical cells with silicon-based anodes are composed of an aprotic solvent, an ionic liquid, a lithium salt, and 8 mol % to 30 mol % hydrofluoroether. A molar ratio of the hydrofluoroether to the lithium salt is 0.22:1 to 0.83:1. The liquid electrolytes achieve at least a 50% improvement in cycle life over conventional electrolytes, extend capacity retention and delay increases in internal resistance.

公开(公告)号：US20220093908A1

公开(公告)日：2022-03-24

申请号：US17028278

申请日：2020-09-22

Applicant: Apple Inc.

Inventor： Alan A. Ritchie ,  Karl M. Brown ,  Lin Ma ,  Korhan Demirkan ,  Andrew Basile ,  Richard M. Mank ,  Bernd Jurgen Neudecker

IPC: H01M4/134 ,  H01M10/052 ,  H01M4/38 ,  H01M4/40 ,  H01M10/0568 ,  H01M10/0565

Abstract: An electrochemical cell has a cathode having a cathode current collector and a cathode active material, an anode having an anode current collector, lithium metal seed, and an anode cap on the lithium metal seed, a liquid electrolyte, a separator between the cathode active material and the anode active material, and a polymer electrolyte lamination layer bonding the anode to the separator. The polymer electrolyte lamination layer is formulated using a crosslinked polymer, a lithium salt, a plasticizer, and an anode additive. The anode cap and the polymer electrolyte lamination layer work together to produce densely plated lithium metal between the lithium metal seed and the anode cap with little or no external pressure.

公开(公告)号：US10886567B1

公开(公告)日：2021-01-05

申请号：US16144947

申请日：2018-09-27

Applicant: Apple Inc.

Inventor： Alan A. Ritchie ,  Paul M. Bayley ,  Karl M. Brown

IPC: H01M10/0567 ,  H01M10/052 ,  H01M4/38 ,  H01M10/0569 ,  H01M10/0568 ,  H01M4/485

Abstract: A liquid electrolyte for a lithium metal battery comprises 45-65 mol % of an aprotic solvent, 5-15 mol % of an ionic liquid, 28-44 mol % of a lithium salt and up to 5 mol % additives. The aprotic solvent consists of one or more of a linear carbonate and a linear ether and the ionic liquid consists of one or more of PYR13FSI, PYR14FSI, PYR13TFSI, and PYR14TFSI. The lithium salt is selected from the group consisting of LiFSI, LiTFSI, and LiBET. The liquid electrolyte can have a flash point of greater than 60° C. and a dynamic viscosity of less than 120 mPa·s.

公开(公告)号：US11908998B2

公开(公告)日：2024-02-20

申请号：US16922332

申请日：2020-07-07

Applicant: Apple Inc.

Inventor： Alan A. Ritchie ,  Bernd Jurgen Neudecker ,  Karl M. Brown ,  Andrew Basile

IPC: H01M10/0568 ,  H01M10/0569 ,  H01M10/0567 ,  H01M4/485 ,  H01M10/052 ,  H01M4/38

CPC classification number: H01M10/0567 ,  H01M4/382 ,  H01M4/485 ,  H01M10/052 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0025

Abstract: Liquid electrolytes for a lithium metal battery comprise an aprotic solvent, an ionic liquid, a lithium salt, 8 mol % to 30 mol % hydrofluoroether and up to 5 mol % additives. A molar ratio of the hydrofluoroether to the lithium salt is 0.22:1 to 0.83:1. The liquid electrolytes achieve at least a 50% improvement in cycle life over conventional electrolytes, extend capacity retention and delay increases in internal resistance.

公开(公告)号：US20220376225A1

公开(公告)日：2022-11-24

申请号：US17325376

申请日：2021-05-20

Applicant: Apple Inc.

Inventor： Penchala N. Kankanala ,  Karl M. Brown ,  Alan A. Ritchie ,  Richard M. Mank ,  Ulrich A. Bonne ,  Korhan Demirkan

IPC: H01M4/139 ,  H01M4/66 ,  H01M4/525 ,  H01M4/04

Abstract: An all-solid-state battery cell has a cathode on which a cathode current collector is attached, a solid electrolyte deposited on the cathode opposite the cathode current collector, an anode comprising lithium deposited onto the solid electrolyte opposite the cathode, and an anode current collector bonded to the anode opposite the solid electrolyte with a bonding layer of a metal alloyed with the lithium.

公开(公告)号：US11309540B1

公开(公告)日：2022-04-19

申请号：US16919151

申请日：2020-07-02

Applicant: Apple Inc.

Inventor： Karl M. Brown ,  Alan A. Ritchie

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/80 ,  H01M4/02 ,  H01M4/62 ,  H01M4/66 ,  H01M4/38

Abstract: An anode for a lithium metal battery includes a host structure configured to be between an anode current collector and a separator, the host structure having void spaces configured to host metallic lithium during charging, wherein the host structure has a void space of ≥60% and ≤80%. Another anode for a lithium metal battery includes a current collector, a separator, and a host structure between the current collector and the separator, the host structure having void spaces configured to host metallic lithium during charging, wherein the host structure is formed of fibers.

公开(公告)号：US20210083326A1

公开(公告)日：2021-03-18

申请号：US16922332

申请日：2020-07-07

Applicant: Apple Inc.

Inventor： Alan A. Ritchie ,  Bernd Jurgen Neudecker ,  Karl M. Brown ,  Andrew Basile

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/052 ,  H01M4/38 ,  H01M4/485 ,  H01M10/0568

Abstract: Liquid electrolytes for a lithium metal battery comprise an aprotic solvent, an ionic liquid, a lithium salt, 8 mol % to 30 mol % hydrofluoroether and up to 5 mol % additives. A molar ratio of the hydrofluoroether to the lithium salt is 0.22:1 to 0.83:1. The liquid electrolytes achieve at least a 50% improvement in cycle life over conventional electrolytes, extend capacity retention and delay increases in internal resistance.