公开(公告)号：US20230282808A1

公开(公告)日：2023-09-07

申请号：US17688163

申请日：2022-03-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sanaz KETABI ,  Shuru CHEN ,  Fang DAI ,  Mei CAI

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/58 ,  H01M4/38

CPC classification number: H01M4/366 ,  H01M4/628 ,  H01M4/364 ,  H01M4/5825 ,  H01M4/382 ,  H01M4/5815 ,  H01M2004/021

Abstract: A method for forming a protective electrode coating on an electrode to be used in a lithium-sulfur battery is provided. The method includes contacting one or more surfaces of the electrode with a polymeric admixture, and polymerizing the polymeric admixture to form the protective electrode coating. The polymeric admixture includes a plurality of monomers, for example heterocyclic acetal monomers and/or cyclic ether monomers, and a lithium difluoro(oxalato)borate (LiDFOB) initiator. In certain instances, the polymeric admixture may also include a structural additive and/or a lithium salt. The contacting may include applying a thin film on the one or more surfaces of the electrode, and the polymerization may be heat activated.

公开(公告)号：US20220140394A1

公开(公告)日：2022-05-05

申请号：US17085744

申请日：2020-10-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Meinan HE ,  Mei CAI ,  Biqiong WANG

IPC: H01M10/0568 ,  H01M10/0569 ,  H01M10/052 ,  H01M2/16 ,  H01M4/38 ,  H01M4/36 ,  H01M4/62

Abstract: The present disclosure relates to electrolyte systems and/or separators for electrochemical cells that cycle lithium ions and which may have lithium metal electrodes. The electrochemical cell includes a liquid electrolyte system that fills voids and pores within the electrochemical cell. The electrolyte system includes two or more lithium salts and two or more solvents. The two or more lithium salts include bis(fluorosulfonyl)imide (LiN(FSO2)2) (LIFSI) and lithium perchlorate (LiClO4). The two or more solvents include a first solvent and a second solvent. The first solvent may be a fluorinated cyclic carbonate. The second solvent may be a linear carbonate. A volumetric ratio of the first solvent to the second solvent may be 1:4. The electrochemical cell may include a surface-modified separator that has one or more coatings or fillers.

公开(公告)号：US20210159502A1

公开(公告)日：2021-05-27

申请号：US16698303

申请日：2019-11-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Fang DAI ,  Hongliang WANG ,  Shuru CHEN ,  Qinglin ZHANG ,  Mei CAI

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M4/66

Abstract: An electrode component for an electrochemical cell is provided herein. The electrode component includes a current collector having a first surface, a metal oxide layer disposed on the first surface of the current collector, and a lithium-containing layer bonded to the first surface of the current collector. The metal oxide layer includes a plurality of features. A method for manufacturing such an electrode component is also provided herein. The method includes directing a laser beam toward the first surface of the current collector in the presence of oxygen to form the metal oxide layer on the first surface and applying the lithium-containing layer to the metal oxide layer thereby bonding the lithium-containing layer with the current collector.

公开(公告)号：US20200220223A1

公开(公告)日：2020-07-09

申请号：US16243509

申请日：2019-01-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Meinan HE ,  Shuru CHEN ,  Mei CAI

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

Abstract: An ionic liquid electrolyte composition is provided. The ionic liquid electrolyte composition includes an ionic liquid, a conductive salt, and optionally a stabilizing agent. The stabilizing agent is an oxidant, an interface additive, a co-solvent, or a combination thereof.

公开(公告)号：US20180023516A1

公开(公告)日：2018-01-25

申请号：US15549619

申请日：2015-02-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  SHANGHAI WINNING ENERGY TECHNOLOGY CORP. LTD.

Inventor： Cunman ZHANG ,  Wei ZHOU ,  Mei CAI ,  Anne M. DAILLY

IPC: F02M21/02 ,  F04C28/08 ,  B01D45/08 ,  F04C28/26 ,  B01D45/16 ,  F04C18/02 ,  F04C29/00

CPC classification number: F02M21/0245 ,  B01D45/08 ,  B01D45/16 ,  B60K15/03006 ,  F02M21/0215 ,  F02M21/0221 ,  F02M21/0227 ,  F02M21/0296 ,  F04C18/0207 ,  F04C18/0269 ,  F04C23/005 ,  F04C28/08 ,  F04C28/26 ,  F04C29/0085 ,  F04C2210/1044 ,  F04C2210/1061 ,  F04C2230/91 ,  F04C2240/40 ,  F04C2270/185 ,  F04F5/24 ,  F05C2203/08 ,  Y02T10/32

Abstract: A natural gas fueled vehicle, includes a natural gas fueled Internal Combustion Engine (ICE) to provide motive power to the vehicle. A pressurizable tank is disposed on the vehicle to contain a natural gas. A natural gas adsorbent is disposed in the tank. A fuel supply tube is to convey the natural gas to the ICE. A scroll compressor is on the vehicle to receive the natural gas from the tank and to deliver a first mixture of compressed natural gas and an oil to a gas and oil separator. The gas and oil separator is to receive the first mixture of the compressed natural gas and the oil from the scroll compressor and to separate the oil from the compressed natural gas and to deliver the compressed natural gas to the fuel supply tube substantially free from the oil.

公开(公告)号：US20240047821A1

公开(公告)日：2024-02-08

申请号：US17880521

申请日：2022-08-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Biqiong WANG ,  Meinan HE ,  Mei CAI ,  Andrew J. GALANT ,  William OSAD

IPC: H01M4/04 ,  H01M4/36 ,  H01M4/62 ,  H01M50/403 ,  H01M50/431 ,  H01M50/449 ,  H01M50/46 ,  C23C16/30 ,  C23C16/455

CPC classification number: H01M4/0428 ,  H01M4/366 ,  H01M4/62 ,  H01M50/403 ,  H01M50/431 ,  H01M50/449 ,  H01M50/46 ,  C23C16/30 ,  C23C16/45553 ,  H01M2004/027

Abstract: A method for manufacturing an interfacial lithium fluoride layer for an electrochemical cell that cycles lithium ions is disclosed. In the method, a substrate is positioned in a reaction chamber of an atomic layer deposition reactor and a lithium fluoride (LiF) precursor is introduced into the reaction chamber such that the LiF precursor contacts and chemically reacts with functional groups on the substrate. Then, an oxidant is introduced into the reaction chamber to form a single molecular layer of lithium fluoride on the substrate. The lithium fluoride layer is formed on the substrate at a temperature of greater than or equal to about 110 degrees Celsius to less than or equal to about 250 degrees Celsius.

公开(公告)号：US20230194242A1

公开(公告)日：2023-06-22

申请号：US17556430

申请日：2021-12-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Fang DAI ,  Hongliang WANG ,  Shuru CHEN ,  Mei CAI

IPC: G01B11/06

CPC classification number: G01B11/0641 ,  H01M2004/027

Abstract: A system for measuring a thickness of a coating arranged on an anode substrate includes an optical measurement system configured to transmit a light signal having a known first polarization toward the anode substrate through the coating such that the light signal is reflected from the surface of the anode substrate, a detection module positioned to receive the reflected light signal and configured to determine a second polarization of the reflected light signal that is different from the first polarization and measure a polarization difference between the first polarization and the second polarization, and a measurement module configured to receive the measured polarization difference, calculate the thickness of the coating based on the measured polarization difference, and generate an output based on the calculated thickness.

公开(公告)号：US20230187607A1

公开(公告)日：2023-06-15

申请号：US17548499

申请日：2021-12-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Biqiong WANG ,  Fang DAI ,  Shuru CHEN ,  Mei CAI

IPC: H01M4/1395 ,  H01M4/134 ,  H01M4/38 ,  H01M10/052 ,  H01M10/0565

CPC classification number: H01M4/1395 ,  H01M4/134 ,  H01M4/382 ,  H01M10/052 ,  H01M10/0565 ,  H01M2300/0085

Abstract: A method of preparing a lithium metal electrode for an electrochemical cell, such as a lithium metal battery, includes introducing a treatment gas into a chamber including an electrode precursor. The treatment gas may include a reactant gas and/or a plasma. The electrode precursor includes lithium metal and a passivation layer. The method further includes forming the lithium metal electrode by contacting the treatment gas with the passivation layer to remove at least a portion of the passivation layer. The present disclosure also provides pretreated electrodes and electrode assemblies.

公开(公告)号：US20230087207A1

公开(公告)日：2023-03-23

申请号：US17482236

申请日：2021-09-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xingcheng XIAO ,  Yangbing ZENG ,  Mei CAI

IPC: H01M10/613 ,  H01M10/6566 ,  H01M10/653 ,  A62C3/16 ,  H01M50/119

Abstract: A thermal barrier component for an electrochemical cell according to various aspects of the present disclosure includes a functional material. The functional material includes at least one of a hydrate of a metal carbonate and a hydrate of a metal phosphate. The functional material is configured to release water vapor at a first temperature of greater than or equal to about 100° C. and decompose to release a gaseous fire retardant at a second temperature of greater than or equal to about 300° C. Another thermal barrier component according to various aspects of the present disclosure includes a hydrate and a fire retardant. The hydrate is configured to release water in an amount greater than or equal to about 1 kg at a first temperature of greater than or equal to about 100° C. The fire retardant is configured to decompose at a second temperature of greater than or equal to about 300° C.

公开(公告)号：US20230024073A1

公开(公告)日：2023-01-26

申请号：US17375414

申请日：2021-07-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xingcheng XIAO ,  Mei CAI

IPC: H01M50/431 ,  H01M10/0525 ,  H01M50/491 ,  H01M50/497 ,  C01B39/38 ,  C01B39/24 ,  C01B39/32 ,  C01B39/14 ,  H01M50/451

Abstract: Lithium ion-exchanged zeolite particles and methods of making such lithium ion-exchanged zeolite particles are provided herein. The method includes combining precursor zeolite particles with (NH4)3PO4 to form a first mixture including intermediate zeolite particles including NH4+ cations. The method further includes adding a lithium salt to the first mixture to form the lithium ion-exchanged zeolite particles, or separating the intermediate zeolite particle from the first mixture and combining the intermediate zeolite particles with the lithium salt to form the lithium ion-exchanged zeolite particles.