公开(公告)号：US11735774B2

公开(公告)日：2023-08-22

申请号：US17242381

申请日：2021-04-28

Applicant: Apple Inc.

Inventor： Woo Cheol Shin ,  Aaron Smith ,  Sang Young Yoon

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0567 ,  H01M4/525 ,  H01M4/583

CPC classification number: H01M10/0568 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0037

Abstract: An electrolyte for a rechargeable lithium-ion battery includes a solvent consisting of 10.0 wt. % to 35.0 wt. % carbonate-based solvent and 50.0 wt. % to 80.0 wt. % propionate-based solvent, 1.1M to 1.3M lithium salt, 0.1 wt. % to 12.0 wt. % of a phosphazene-based flame retardant, 1,3,6-hexanetricarbonitrile and succinonitrile together in a range of 0.1 wt. % to 5.0 wt. %, and 1.7 wt. % to 15.0 wt. % additives.

公开(公告)号：US20230420742A1

公开(公告)日：2023-12-28

申请号：US17851135

申请日：2022-06-28

Applicant: Apple Inc.

Inventor： Woo Cheol Shin ,  Hyea Kim ,  OuJung Kwon

IPC: H01M10/0569 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0567

CPC classification number: H01M10/0569 ,  H01M10/0525 ,  H01M4/386 ,  H01M4/583 ,  H01M10/0567 ,  H01M2300/0042

Abstract: An electrochemical cell has an anode comprising a silicon-based active material, a cathode comprising a cathode active material, and an electrolyte. The electrolyte is formulated with a propionate-based solvent, a carbonate-based solvent, trifluoro toluene, a lithium salt with a molar concentration of 2.0 M or greater, and less than or equal to 5.0 wt. % of fluoroethylene carbonate.

公开(公告)号：US20240136585A1

公开(公告)日：2024-04-25

申请号：US18535610

申请日：2023-12-11

Applicant: Apple Inc.

Inventor： Woo Cheol Shin ,  Soonho Ahn

IPC: H01M10/0568 ,  C07C25/13 ,  C07C25/18 ,  C07C25/22 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/0568 ,  C07C25/13 ,  C07C25/18 ,  C07C25/22 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0028

Abstract: An electrolyte for a lithium-containing battery cell is described. The electrolyte includes a solvent having at least one carbonate ester, and at least one lithium salt having a concentration ranging from 3 mol/liter to 15 mol/liter in the solvent. The electrolyte also includes a diluent that includes an aromatic fluorocarbon. In some embodiments, the solution of the at least one lithium salt and the solvent is a supersaturated solution for at least some operating temperatures of the battery cell. Also described are lithium-containing battery cells that include a positive electrode, a negative electrode, and the electrolyte.

公开(公告)号：US20220352553A1

公开(公告)日：2022-11-03

申请号：US17242381

申请日：2021-04-28

Applicant: Apple Inc.

Inventor： Woo Cheol Shin ,  Aaron Smith ,  Sang Young Yoon

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0567 ,  H01M4/525 ,  H01M4/583

Abstract: An electrolyte for a rechargeable lithium-ion battery includes a solvent consisting of 10.0 wt. % to 35.0 wt. % carbonate-based solvent and 50.0 wt. % to 80.0 wt. % propionate-based solvent, 1.1M to 1.3M lithium salt, 0.1 wt. % to 12.0 wt. % of a phosphazene-based flame retardant, 1,3,6-hexanetricarbonitrile and succinonitrile together in a range of 0.1 wt. % to 5.0 wt. %, and 1.7 wt. % to 15.0 wt. % additives.

公开(公告)号：US11881558B2

公开(公告)日：2024-01-23

申请号：US16738883

申请日：2020-01-09

Applicant: Apple Inc.

Inventor： Woo Cheol Shin ,  Soonho Ahn

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0569 ,  C07C25/13 ,  C07C25/18 ,  C07C25/22 ,  H01M10/0567

CPC classification number: H01M10/0568 ,  C07C25/13 ,  C07C25/18 ,  C07C25/22 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0028

Abstract: An electrolyte for a lithium-containing battery cell is described. The electrolyte includes a solvent having at least one carbonate ester, and at least one lithium salt having a concentration ranging from 3 mol/liter to 15 mol/liter in the solvent. The electrolyte also includes a diluent that includes an aromatic fluorocarbon. In some embodiments, the solution of the at least one lithium salt and the solvent is a supersaturated solution for at least some operating temperatures of the battery cell. Also described are lithium-containing battery cells that include a positive electrode, a negative electrode, and the electrolyte.

公开(公告)号：US20230335785A1

公开(公告)日：2023-10-19

申请号：US17659611

申请日：2022-04-18

Applicant: APPLE INC.

Inventor： Woo Cheol Shin ,  Sang Young Yoon ,  Hungoo Cho

IPC: H01M10/056 ,  H01M10/052

CPC classification number: H01M10/056 ,  H01M10/052 ,  H01M2300/0034 ,  H01M2300/0037

Abstract: Electrolytes for lithium-containing battery cells are described. The electrolytes may include a solvent that includes at least one non-carbonate-containing ester compound. The electrolytes may further include one or more lithium salts, where the lithium salts have a concentration of greater than or about 2 mols/liter in the electrolyte. The electrolytes may still further include a diluent that includes an aromatic fluorocarbon.

公开(公告)号：US20220037699A1

公开(公告)日：2022-02-03

申请号：US17130088

申请日：2020-12-22

Applicant: Apple Inc.

Inventor： Hyea Kim ,  OuJung Kwon ,  Woo Cheol Shin

IPC: H01M10/0569 ,  H01M10/0525 ,  H01M4/38 ,  H01M10/0568 ,  H01M10/0567

Abstract: An electrochemical cell has an anode comprising a silicon-based active material, a cathode comprising a cathode active material, and an electrolyte having no ethylene carbonate. The electrolyte comprises a solvent, the solvent being 20 wt % to 50 wt % propylene carbonate with the remainder being a linear solvent, a lithium salt, and less than 15 wt % of one or more additives. The silicon-based anode active material has a specific capacity of ≥700 mAh/g.

公开(公告)号：US20210218061A1

公开(公告)日：2021-07-15

申请号：US16738883

申请日：2020-01-09

Applicant: Apple Inc.

Inventor： Woo Cheol Shin ,  Soonho Ahn

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0567 ,  C07C25/13 ,  C07C25/18 ,  C07C25/22

Abstract: An electrolyte for a lithium-containing battery cell is described. The electrolyte includes a solvent having at least one carbonate ester, and at least one lithium salt having a concentration ranging from 3 mol/liter to 15 mol/liter in the solvent. The electrolyte also includes a diluent that includes an aromatic fluorocarbon. In some embodiments, the solution of the at least one lithium salt and the solvent is a supersaturated solution for at least some operating temperatures of the battery cell. Also described are lithium-containing battery cells that include a positive electrode, a negative electrode, and the electrolyte.