公开(公告)号：US20220021044A1

公开(公告)日：2022-01-20

申请号：US17203863

申请日：2021-03-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dewen KONG ,  Dave G. RICH ,  Lyall K. WINGER ,  Meiyuan WU ,  Jingyuan LIU ,  Haijing LIU

IPC: H01M10/63 ,  H02J7/00 ,  H01M10/615 ,  H01M10/625

Abstract: A thermal device comprises a first layer of a non-metallic material that is a good conductor of heat and electricity, that includes a first terminal and a second terminal, and that has a first surface and a second surface; a metallic material disposed on the first surface of the first layer; a first plastic layer disposed on the metallic material; and a second plastic layer disposed on the second surface of the first layer. The first plastic layer and the second plastic layer include a plastic material that is a good conductor of heat.

公开(公告)号：US20210110980A1

公开(公告)日：2021-04-15

申请号：US17069932

申请日：2020-10-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili SU ,  Haijing LIU ,  Meiyuan WU ,  Dewen KONG ,  Mengyan HOU

IPC: H01G11/08 ,  H01G11/28 ,  H01G11/32 ,  H01G11/68 ,  H01G11/46 ,  H01G11/54 ,  H01G11/82

Abstract: Hybrid lithium-ion electrochemical cells include a first electrode having a first polarity and a first electroactive material that reversibly cycles lithium ions having a first maximum operational voltage and a second electrode having the first polarity with a second electroactive material having a second maximum operational voltage. A difference between the second and first maximum operational voltages defines a predetermined voltage difference. Also included are at least one third electrode including a third electroactive material that reversibly cycles lithium ions having a second polarity opposite to the first polarity, a separator, and electrolyte. A voltage modification component (e.g., diode) is in electrical communication with the first and the second electrodes. In a first operational state corresponding to charging, the at least one voltage modification component is configured to induce a voltage drop corresponding to the predetermined voltage difference providing high power density and high energy density hybrid lithium-ion electrochemical cells.

公开(公告)号：US20180331389A1

公开(公告)日：2018-11-15

申请号：US15775696

申请日：2015-11-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Haijing LIU ,  Xiaochao QUE ,  Meiyuan WU ,  Dewen KONG ,  Jianyong LIU ,  Zhiqiang YU ,  Shawn DENG

IPC: H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M4/66 ,  H01M10/42 ,  H01M10/0569 ,  H01M2/16

CPC classification number: H01M10/0525 ,  H01M2/162 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/621 ,  H01M4/623 ,  H01M4/625 ,  H01M4/661 ,  H01M4/663 ,  H01M4/667 ,  H01M10/0569 ,  H01M10/42 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2010/4292

Abstract: A lithium ion battery is provided that includes: a positive electrode; a negative electrode; and a polymer separator soaked in an electrolyte solution, the polymer separator being disposed between the positive electrode and the negative electrode. The positive electrode includes an active material of lithium manganese oxide, lithium nickel manganese cobalt oxide, or combinations thereof. The negative electrode includes lithium titanate. A method of making the lithium ion battery is also provided.