公开(公告)号：US20210028481A1

公开(公告)日：2021-01-28

申请号：US16523324

申请日：2019-07-26

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mengyan Hou ,  Haijing Liu ,  Mark W. Verbrugge ,  Qili Su ,  Meiyuan Wu

IPC: H01M10/04 ,  H01M10/0525 ,  H01M4/36 ,  H01G11/32 ,  H01G11/46

Abstract: A bipolar battery may comprise first, second, and third bipolar electrodes that are physically and electrically isolated from one another by intervening non-liquid electrolyte layers. Each of the bipolar electrodes may comprise a bipolar current collector including a first electroactive material layer connected to a first side thereof and a second electroactive material layer connected to a second side thereof. Each electroactive material layer may comprise at least one of: (i) a lithium ion battery positive electrode material, (ii) a lithium ion battery negative electrode material, and/or (iii) a capacitor electrode material. At least one of the electroactive material layers comprises a capacitor electrode material.

公开(公告)号：US20200036053A1

公开(公告)日：2020-01-30

申请号：US16390782

申请日：2019-04-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe Li ,  Dave G. Rich ,  Haijing Liu ,  Dewen Kong ,  Sherman H. Zeng

IPC: H01M10/42 ,  H01M10/0562 ,  H01M10/0525 ,  H01M10/0565

Abstract: A capacitor-assisted, solid-state lithium-ion battery is formed by replacing at least one of the electrodes of the battery with a capacitor electrode of suitable particulate composition for the replaced battery particulate anode or cathode material. The solid-state electrodes typically contain quasi-solid-state electrode material and are separated with a layer of quasi-solid-state electrolyte material. In another embodiment the capacitor anode or cathode particles may be mixed with lithium-ion battery anode or cathode particles respectively. Preferably, the battery comprises at least two positively-charged electrodes and two negatively-charged electrodes, and the location, number and compositions of the capacitor material electrode(s) may be selected to provide a desired combination of energy and power.

公开(公告)号：US20190157659A1

公开(公告)日：2019-05-23

申请号：US16098457

申请日：2016-06-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Haijing Liu ,  Zhiqiang Yu ,  Dewen Kong ,  Meiyuan Wu

IPC: H01M4/139 ,  H01M4/36 ,  H01M4/62 ,  H01M4/04 ,  H01M10/0525 ,  H01M10/0585 ,  H01G11/06 ,  H01G11/62 ,  H01G11/50 ,  H01G11/28 ,  H01G11/86

Abstract: At least one of the anode and cathode of a lithium-ion processing electrochemical cell are prepared with a layer of mixed partides of both active lithium battery electrode materials and lithium ion adsorbing capacitor materials, or with co-extensive, contiguous layers of battery electrode particles in one layer and capacitor particles in the adjoining layer. The proportions of active battery electrode particles and active capacitor particles in one or both of the electrodes are predetermined to provide specified energy density (Wh/kg) and power density (W/kg) properties of the cell for its intended application.

公开(公告)号：US20190013552A1

公开(公告)日：2019-01-10

申请号：US15644444

申请日：2017-07-07

Applicant: GM Global Technology Operations LLC

Inventor： Qiang Wu ,  Zhiqiang Yu ,  Haijing Liu ,  Honggu Pan ,  Ion C. Halalay

IPC: H01M10/42 ,  H01M10/0525 ,  H01M10/0567 ,  H01M4/587 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0569 ,  H01M10/0568

CPC classification number: H01M10/4235 ,  H01M4/505 ,  H01M4/525 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/004

Abstract: Electrochemical cells that cycle lithium ions and methods for suppressing or minimizing dendrite formation are provided. The electrochemical cells include a positive electrode, a negative electrode, and a separator sandwiched therebetween. The positive and negative electrodes and separator may each include an electrolyte system comprising one or more lithium salts, one or more solvents, and one or more complexing agents. The one or more complexing agents binds to metal contaminants found within the electrochemical cell to form metal ion complex compounds that minimize or suppress formation of dendrite protrusions on the negative electrode at least by increasing the horizontal area (e.g., decreasing the height) of any dendrite formation.

公开(公告)号：US20180048040A1

公开(公告)日：2018-02-15

申请号：US15560206

申请日：2015-03-25

Applicant: Haijing LIU ,  GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Haijing Liu ,  Xiaohong Q. Gayden ,  Zhiqiang Yu

IPC: H01M12/00 ,  H01M4/66 ,  H01G11/08 ,  H01G11/06 ,  H01G11/46 ,  H01G11/86 ,  H01G11/58 ,  H01G11/66 ,  H01G11/34 ,  H01M4/04 ,  H01G11/24

CPC classification number: H01M12/02 ,  H01G11/06 ,  H01G11/08 ,  H01G11/24 ,  H01G11/34 ,  H01G11/46 ,  H01G11/58 ,  H01G11/62 ,  H01G11/66 ,  H01G11/72 ,  H01G11/78 ,  H01G11/86 ,  H01M2/024 ,  H01M4/0404 ,  H01M4/485 ,  H01M4/505 ,  H01M4/661 ,  H01M10/0459 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0583 ,  H01M10/4264 ,  H01M12/005 ,  H01M16/00 ,  H01M2220/20 ,  Y02E60/122 ,  Y02E60/13 ,  Y02T10/7011 ,  Y02T10/7022

Abstract: Atmospheric plasma spray devices and methods are used in the making of the electrodes for both a lithium-ion battery and a lithium-ion utilizing capacitor structure, which are to be placed in a common container and infiltrated with a common lithium-ion transporting, liquid electrolyte. The lithium-ion-utilizing capacitor and lithium-ion cell battery are combined such that the respective electrodes may be electrically connected, either in series or parallel connection for in energy storage and management in an automotive vehicle or other electrical power supply application.

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：US20250149546A1

公开(公告)日：2025-05-08

申请号：US18654585

申请日：2024-05-03

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Zhe LI ,  Qili Su ,  Yong Lu ,  Meiyuan Wu ,  Haijing Liu

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/04 ,  H01M4/1395 ,  H01M4/38 ,  H01M10/0562

Abstract: A battery cell includes C cathode electrodes including a cathode active material layer arranged on a cathode current collector, A anode electrodes including an anode active material layer arranged on an anode current collector, and S separators, where A, C and S are integers greater than one. The anode active material layer comprises silicon and a metal that are co-sputtered. The metal is different than the silicon.

公开(公告)号：US12272788B2

公开(公告)日：2025-04-08

申请号：US17542299

申请日：2021-12-03

Applicant: GM Global Technology Operations LLC

Inventor： Zhe Li ,  Meiyuan Wu ,  Yong Lu ,  Haijing Liu ,  Xiaochao Que

IPC: H01M10/0565 ,  H01M10/0585 ,  H01M4/02

Abstract: A method for forming a bipolar solid-state battery includes preparing a mixture of gel precursor solution and solid electrolyte. The gel precursor includes a polymer, a first solvent, and a liquid electrolyte. The liquid electrolyte includes a second solvent, a lithium salt, and electrolyte additive. The method includes loading the mixture onto at least one of a first electrode, a second electrode, and a third electrode. Each of the first, second, and third electrodes includes a plurality of solid-state electroactive particles. The method includes removing at least a portion of the first solvent from the mixture to form a gel and positioning one of the first, second, and third electrodes with respect to another of the first, second, and third electrodes. The method includes applying a polymer blocker to a border of the first, second, or third electrodes.

公开(公告)号：US20250062327A1

公开(公告)日：2025-02-20

申请号：US18476826

申请日：2023-09-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili Su ,  Zhe Li ,  Meiyuan Wu ,  Haijing Liu

IPC: H01M4/38 ,  H01M4/04 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/44

Abstract: Lithium-ion batteries are provided that include a columnar silicon anode including a carbon fiber network on exposed surfaces of the columnar silicon anode. The columnar silicon is formed by plasma vapor deposition. Also disclosed are processes for forming the carbon fiber network, which generally includes spraying a dilute carbon fiber precursor solution including carbon nanotubes, an optional polymeric dispersing agent and a solvent, which is then subjected to facile evaporation at an elevated temperature to remove the solvent and form the carbon fiber network. The carbon fiber network is uniformly and multi-directionally provided on the exposed surfaces of the columnar silicon anode. The presence of the carbon fiber network provides high electronic pathways to enhance battery power capability especially at the higher current rates.

公开(公告)号：US12176510B2

公开(公告)日：2024-12-24

申请号：US17542974

申请日：2021-12-06

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jingyuan Liu ,  Dewen Kong ,  Zhe Li ,  Meiyuan Wu ,  Haijing Liu

IPC: H01M16/00 ,  H01G11/08 ,  H01G11/28 ,  H01G11/52 ,  H01G11/56 ,  H01G11/58 ,  H01M10/0525 ,  H01M50/51

Abstract: A bipolar capacitor assisted battery includes a bipolar capacitor including a first capacitor, and a second capacitor. The second capacitor is connected in series with the first capacitor. A lithium ion battery is connected in parallel to the bipolar capacitor.