公开(公告)号：US20250149576A1

公开(公告)日：2025-05-08

申请号：US18522539

申请日：2023-11-29

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xin ZHANG ,  Dewen Kong ,  Meiyuan Wu ,  Haijing Liu

IPC: H01M4/58 ,  H01M4/36 ,  H01M4/38 ,  H01M4/62 ,  H01M4/66 ,  H01M4/74 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M50/417 ,  H01M50/429 ,  H01M50/451 ,  H01M50/491

Abstract: A battery cell includes A anode electrodes including an anode active material layer comprising lithium metal active material and an anode current collector, C cathode electrodes including a cathode active material layer comprising LiFePO4 (LFP) active material and a cathode current collector, and S separators arranged between the A anode electrodes and the C cathode electrodes, where A, C, and S are integers greater than one. The S separators comprise a substrate including a coating layer.

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：US20250149650A1

公开(公告)日：2025-05-08

申请号：US18519759

申请日：2023-11-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xin ZHANG ,  Zhe LI ,  Haijing LIU

IPC: H01M10/42 ,  H01M4/02 ,  H01M4/134 ,  H01M4/38 ,  H01M10/052 ,  H01M10/0568 ,  H01M50/46

Abstract: A battery that cycles lithium ions includes a lithium metal negative electrode, a positive electrode, a porous separator disposed between opposing facing surfaces of the lithium metal negative electrode and the positive electrode, and a composite interlayer disposed on the facing surface of the lithium metal negative electrode, between the lithium metal negative electrode and the porous separator. The composite interlayer includes a polymer matrix phase and a lithium salt distributed phase embedded in and distributed throughout the polymer matrix phase. The lithium salt distributed phase constitutes, by weight, greater than or equal to about 10% and less than or equal to about 50% of the composite interlayer.