公开(公告)号：US20240347770A1

公开(公告)日：2024-10-17

申请号：US18300486

申请日：2023-04-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Meng Jiang ,  Chuanlong Wang

IPC: H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M10/0569 ,  H01M2300/0037

Abstract: An electrolyte composition for batteries is provided. The electrolyte composition includes a solvent blend that includes cyclic carbonate and linear carbonate. The electrolyte composition further includes a lithium-based salt, fluoroethylene carbonate, vinylene carbonate, and a metal-based salt additive. The metal-based salt additive includes counterions of a metal and trifluoromethanesulfonimide. The metal is chosen from magnesium (Mg), manganese (Mn), aluminum (Al), iron (Fe), nickel (Ni), or combinations thereof.

公开(公告)号：US20250167211A1

公开(公告)日：2025-05-22

申请号：US18514142

申请日：2023-11-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Bradley R. FRIEBERG ,  Chuanlong Wang ,  Xiaosong Huang

IPC: H01M4/1391 ,  H01M4/02 ,  H01M4/04 ,  H01M4/1393 ,  H01M4/485 ,  H01M4/587 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M10/058

Abstract: A battery that cycles lithium ions includes a negative electrode including an electroactive negative electrode material, a polymer binder, and a nitrate additive. The negative electrode is manufactured by depositing a precursor mixture on a substrate to form a precursor layer. The precursor mixture includes an electroactive negative electrode material, a polymer binder, a nitrate additive, and an aqueous solvent. The electroactive negative electrode material includes silicon, silicon oxide, lithiated silicon suboxide, graphite, or a combination thereof. The aqueous solvent is removed from the precursor layer to form the negative electrode on the substrate.

公开(公告)号：US20250023092A1

公开(公告)日：2025-01-16

申请号：US18352096

申请日：2023-07-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gongshin QI ,  Chuanlong Wang ,  Devendrasinh Darbar ,  Wei Li

IPC: H01M10/0525 ,  H01M4/36 ,  H01M4/505 ,  H01M4/583 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

Abstract: A battery that cycles lithium ions includes a positive electrode and an electrolyte infiltrating the positive electrode. The positive electrode includes an electroactive material comprising a lithium-and manganese-rich oxide. The electrolyte includes an organic solvent, an inorganic lithium salt, and a functional additive comprising lithium fluoride (LiF), lithium phosphate (Li3PO4), or a combination thereof.

公开(公告)号：US20230238570A1

公开(公告)日：2023-07-27

申请号：US17586035

申请日：2022-01-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chuanlong Wang ,  Xiaosong Huang

IPC: H01M10/056 ,  H01M10/0525

CPC classification number: H01M10/056 ,  H01M10/0525 ,  H01M2300/0034 ,  H01M2004/027

Abstract: An electrolyte composition for a battery is provided. The electrolyte composition includes a lithium salt in a carbonate-based solution and lithium difluoro(oxalate)borate present in the electrolyte composition in an amount from 0.1 part by weight to 5 parts by weight based on 100 parts by weight of the electrolyte composition.

公开(公告)号：US20250112271A1

公开(公告)日：2025-04-03

申请号：US18354196

申请日：2023-07-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chuanlong Wang ,  Xiaosong Huang

IPC: H01M10/0567 ,  H01M4/36 ,  H01M4/48 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

Abstract: A battery that cycles lithium ions includes a positive electrode and an electrolyte infiltrating the positive electrode. The positive electrode includes an electroactive material including a layered lithium transition metal oxide. The electrolyte includes an organic solvent, a lithium salt, and a fluorinated phosphate ester additive. The fluorinated phosphate ester includes at least one of: (i) a chemical compound comprising a phosphate group attached to two or three branched-chain fluorocarbon groups, or (ii) a chemical compound comprising a cyclic phosphate group attached to a fluorocarbon group.

公开(公告)号：US20250062411A1

公开(公告)日：2025-02-20

申请号：US18452082

申请日：2023-08-18

Applicant: GM Global Technology Operations LLC

Inventor： Gongshin Qi ,  Chuanlong Wang ,  Vamakshi Yadav ,  Wei Li

IPC: H01M10/0567 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569

Abstract: In an embodiment, an electrolyte for a lithium-ion battery includes a lithium salt, a phosphorus-containing additive, and a solvent. In an embodiment, a lithium-ion battery comprises an anode, a cathode, an electrolyte and a separator. The anode comprises an anode active layer. The cathode comprises a cathode active layer, where the cathode active layer comprises lithium and manganese-rich layered-structure material. The electrolyte comprises a phosphorus-containing additive. The separator is disposed between the anode and the cathode.