公开(公告)号：US20250105342A1

公开(公告)日：2025-03-27

申请号：US18471878

申请日：2023-09-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yubin ZHANG ,  Thomas A. YERSAK ,  Hernando GONZALEZ MALABET

IPC: H01M10/0562 ,  C01B25/30 ,  H01M4/62 ,  H01M10/0525

Abstract: A solid electrolyte for a battery that cycles lithium ions includes an electrically insulating and ionically conductive lithium phosphorus oxysulfide (LPSO) represented by the formula Li3PSxOy, where x is greater than about 3.5 and less than or equal to about 3.8 and y is greater than or equal to about 0.2 and less than about 0.5. The LPSO solid electrolyte may be manufactured by annealing an amorphous precursor including lithium (Li), phosphorus (P), sulfur(S), and oxygen (O) at a temperature of greater than about 240 degrees Celsius and less than or equal to about 300 degrees Celsius for a duration of greater than about 1 hour and less than or equal to about 4 hours.

公开(公告)号：US20230387453A1

公开(公告)日：2023-11-30

申请号：US17824584

申请日：2022-05-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas A. YERSAK ,  Hernando Jesus GONZALEZ MALABET ,  Yubin ZHANG

IPC: H01M10/0562 ,  H01M4/38 ,  H01M4/505 ,  H01M4/525 ,  H01M4/485 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M4/382 ,  H01M4/505 ,  H01M4/525 ,  H01M4/485 ,  H01M10/0525 ,  H01M2300/008 ,  H01M2004/027

Abstract: The present disclosure provides an all-solid-state electrochemical battery that includes a positive electrode, a negative electrode, and a solid-state electrolyte layer disposed between and separating the positive electrode and the negative electrode. The positive electrode includes a positive electroactive material and a solid-state electrolyte material. The solid-state electrolyte material may be represented by Li3AB6, where A is selected from the group consisting of: yttrium (Y), indium (In), scandium (Sc), erbium (Er), and combinations thereof, and B is selected from the group consisting of: chloride (Cl), bromide (Br), ClxBr(x−1) (where 0

公开(公告)号：US20250118797A1

公开(公告)日：2025-04-10

申请号：US18482985

申请日：2023-10-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mengyuan CHEN ,  Yubin ZHANG ,  Shaomao XU ,  Xiaosong HUANG

IPC: H01M10/0562 ,  H01M4/04 ,  H01M10/052

Abstract: A method for manufacturing a composite solid-state electrolyte (SSE)/electrode for a battery cell includes providing an electrode including an active material layer. The method includes one of: melting a solid-state electrolyte to create molten solid-state electrolyte and coating the active material layer using the molten solid-state electrolyte, and arranging a solid-state electrolyte on the active material layer and heating the electrode and the solid-state electrolyte to create a molten solid-state electrolyte. The method includes solidifying the molten solid-state electrolyte to form a solid-state electrolyte layer.

公开(公告)号：US20240106072A1

公开(公告)日：2024-03-28

申请号：US17955151

申请日：2022-09-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas A. YERSAK ,  Ion C. HALALAY ,  Yubin ZHANG

IPC: H01M50/446 ,  H01M10/0525 ,  H01M10/0562 ,  H01M50/406 ,  H01M50/417 ,  H01M50/423 ,  H01M50/437 ,  H01M50/491 ,  H01M50/497

CPC classification number: H01M50/446 ,  H01M10/0525 ,  H01M10/0562 ,  H01M50/406 ,  H01M50/417 ,  H01M50/423 ,  H01M50/437 ,  H01M50/491 ,  H01M50/497 ,  H01M2300/008

Abstract: A bicontinuous separating layer include a separating matrix having pores and a solid-state electrolyte disposed in the pores of the separating matrix. In certain variations, the bicontinuous separating layer is prepared by contacting a solid-state electrolyte liquid-state precursor with the separating matrix and heating the infiltrated separating matrix to a temperature between about 25° C. and about 300° C. The solid-state electrolyte liquid-state precursor includes a solvent and a solid-state electrolyte powder or a solid-state electrolyte precursor. In other variations, the bicontinuous separating layer may be prepared by contacting a solid-state electrolyte powder with a separating matrix to form a physical mixture and heating the physical mixture to a temperature between about 240° C. and about 500° C., where the separating matrix is defined by a polymer having a melting temperature greater than about 215° C., and the solid-state electrolyte has a melting temperature greater than about 300° C.