公开(公告)号：US20220255063A1

公开(公告)日：2022-08-11

申请号：US17172286

申请日：2021-02-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas A. YERSAK ,  Fan XU ,  Robert D. SCHMIDT ,  Biqiong WANG ,  James R. SALVADOR

IPC: H01M4/36 ,  H01M4/38 ,  H01M10/0562 ,  H01M4/62 ,  H01M10/052

Abstract: A lithium metal electrode including ceramic particles is provided herein as well as electrochemical cells including the lithium metal electrode and methods of making the lithium metal electrode. The lithium metal electrode includes ceramic particles present as a ceramic layer adjacent to a first surface of the lithium metal electrode, embedded within the first surface, or a combination thereof. The ceramic particles include lithium lanthanum zirconium oxide (LLZO) particles, alumina particles, or a combination thereof.

公开(公告)号：US20190372164A1

公开(公告)日：2019-12-05

申请号：US15992514

申请日：2018-05-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： James R. SALVADOR ,  Thomas A. YERSAK

IPC: H01M10/0568 ,  H01M10/0585 ,  H01M10/0569 ,  H01M4/38

Abstract: An electrolyte system for an electrochemical cell includes an aprotic solvent, such as an ether-based solvent and a lithium salt, and a solid component. The aprotic solvent has a dielectric constant of ≥3. The solid component is in direct communication with the aprotic solvent. The solid component includes a sulfide or oxy-sulfide, glass or glass-ceramic electrolyte. The sulfide or oxy-sulfide, glass or glass-ceramic electrolyte has a weighted average bond dissociation enthalpy of greater than or equal to about 380 kJ/mol, which corresponds to a glass having strong bonds. The sulfide or oxy-sulfide, glass or glass-ceramic electrolyte is therefore insoluble in the aprotic solvent. The solid component is lithium ion-conducting and electrically insulating. The electrolyte system may be disposed between a positive electrode and a negative electrode in an electrochemical cell. In various aspects, the negative electrode includes lithium metal and the positive electrode includes sulfur.

公开(公告)号：US20250140900A1

公开(公告)日：2025-05-01

申请号：US18521081

申请日：2023-11-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xin ZHANG ,  Zhe LI ,  Qili SU ,  Thomas A. YERSAK ,  Haijing LIU

IPC: H01M10/056 ,  H01M10/052

Abstract: An electrolyte membrane for a battery that cycles lithium ions includes a sulfide-based solid electrolyte, a polymer binder, an inorganic filler, an inorganic lithium salt, and an ionic liquid. The sulfide-based solid electrolyte includes lithium sulfide (Li2S) and at least one element selected from the group consisting of phosphorus (P), tin (Sn), silicon (Si), germanium (Ge), boron (B), gallium (Ga), and aluminum (Al). The ionic liquid includes substantially equimolar amounts of a cation and an anion. The cation includes a complex of lithium (Li+) and an ethylene glycol dimethyl ether, an imidazolium ion, a piperidinium ion, a pyrrolidinium ion, an ammonium ion, a phosphonium ion, or a combination thereof. The anion includes an arsenate ion, a phosphate ion, a sulfonylimide ion, a borate ion, a chlorate ion, or a combination thereof.

公开(公告)号：US20190393549A1

公开(公告)日：2019-12-26

申请号：US16560270

申请日：2019-09-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas A. YERSAK ,  James R. SALVADOR ,  Han NGUYEN

IPC: H01M10/0562 ,  C03C3/32 ,  C03C10/00 ,  C03C4/18 ,  C03B25/02

Abstract: A solid state electrolyte including an oxy-sulfide glass or glass ceramic, solid state electrolyte layer having a thickness in the range of ten micrometers to two hundred micrometers is provide. The composition of the electrolyte layer is the reaction product of a mixture initially including either a glass former including sulfur or a glass co-former including sulfur, and a glass modifier including Li2O or Na2O. The solid-state electrolyte layer is further characterized as having a wholly amorphous microstructure or as having small recrystallized regions separated from each other in an amorphous matrix, the recrystallized regions having a size of up to five micrometers. The solid-state electrolyte layer includes mobile lithium ions or mobile sodium ions associated with sulfur anions chemically anchored in the microstructure.

公开(公告)号：US20240418610A1

公开(公告)日：2024-12-19

申请号：US18334676

申请日：2023-06-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Erik Damon HUEMILLER ,  Thomas A. YERSAK ,  James R. SALVADOR ,  Dmitriy BRUDER ,  Thaddeus EZEH

IPC: G01N1/22 ,  G01N1/24 ,  H01M10/48 ,  H01M50/317

Abstract: A battery cell gas analysis system including a degas chamber, a vacuum pump in fluid communication with the degas chamber to remove air from the degas chamber, a venting port configured to selectively vent the degas chamber, a battery cell enclosed in the degas chamber, and a gas detector in fluid communication with the degas chamber. The gas detector is configured to detect, with gas species separation, at least one parameter of a gas released from the battery cell into the degas chamber, and the at least one parameter of the gas of the battery cell is indicative of a manufacturing quality of the battery cell. The system includes at least one valve coupled between the degas chamber and the gas detector to selectively control a flow of the gas of the battery cell to the gas detector.

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.

公开(公告)号：US20210257656A1

公开(公告)日：2021-08-19

申请号：US16791158

申请日：2020-02-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas A. YERSAK

IPC: H01M10/0562 ,  H01M10/0525 ,  H01M2/16

Abstract: An electrochemical cell that cycles lithium ions is provided. The electrochemical cell includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a lithium phosphate (Li3PO4)-coated lithium lanthanum zirconium oxide (LLZO) material. The Li3PO4-coated LLZO material is a particle having a substantially spherical core comprising the LLZO and a layer comprising the Li3PO4 directly coating at least a portion of the substantially spherical core, the substantially spherical core having a diameter of less than or equal to about 100 μm; a nanowire having an elongate core comprising the LLZO and a layer comprising the Li3PO4 directly coating at least a portion of the elongate core, the elongate core having a length of less than or equal to about 10 mm and a diameter of less than or equal to about 100 μm; or a combination thereof.

公开(公告)号：US20250149651A1

公开(公告)日：2025-05-08

申请号：US18641883

申请日：2024-04-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jeffrey David CAIN ,  Yifan ZHAO ,  Yun-Yu LAI ,  Thomas A. YERSAK ,  Zhe LI ,  Fang DAI

IPC: H01M10/42 ,  H01M4/38 ,  H01M4/58 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/0568 ,  H01M10/058 ,  H01M50/383

Abstract: A battery cell includes an enclosure and a battery cell stack including C cathode electrodes each comprising a cathode active material layer arranged on a cathode current collector, S separators, and A anode electrodes each comprising an anode active material layer arranged on an anode current collector, wherein A, C, and S are integers greater than one. The anode active material layer includes an anode active material selected from a group consisting of silicon, silicon oxide, silicon alloy, and tin, a solid-state electrolyte comprising an oxysulfide, a conductive additive, and a binder. An electrolyte includes a solvate ionic liquid.

公开(公告)号：US20220166031A1

公开(公告)日：2022-05-26

申请号：US17522331

申请日：2021-11-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe LI ,  Xiaochao QUE ,  Haijing LIU ,  Yong LU ,  Meiyuan WU ,  Thomas A. YERSAK ,  Mei CAI

IPC: H01M4/80

Abstract: The present disclosure provides a solid-state bipolar battery that includes negative and positive electrodes having thicknesses between about 100 μm and about 3000 μm, and a solid-state electrolyte layer disposed between the negative electrode and the positive electrode and having a thickness between about 5 μm and about 100 μm. The first electrode includes a plurality of negative solid-state electroactive particles embedded on or disposed within a first porous material. The second electrode includes plurality of positive solid-state electroactive particles embedded on or disposed within a second porous material that is the same or different from the first porous material. The solid-state bipolar battery includes a first current collector foil disposed on the first porous material, and a second current collector foil disposed on the second porous material. The first and second current collector foils may each have a thickness less than or equal to about 10 μm.

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.