公开(公告)号：US20230282887A1

公开(公告)日：2023-09-07

申请号：US18004398

申请日：2021-07-06

Applicant: RENAULT S.A.S.

Inventor： Mohamed CHAKIR ,  Akhil DILEEP ,  Balaji KALYANARANGAN ,  Madhumithaa MURALI-A ,  Jayanth-Ramaswami RAMAMURTHY ,  Konda-Shiva REDDY

IPC: H01M10/058 ,  H01M10/0565 ,  H01M4/66 ,  H01M4/587 ,  H01M4/525 ,  H01M50/512 ,  H01M4/505 ,  H01M4/131

CPC classification number: H01M10/058 ,  H01M10/0565 ,  H01M4/661 ,  H01M4/587 ,  H01M4/525 ,  H01M50/512 ,  H01M4/505 ,  H01M4/131 ,  H01M2300/0082

Abstract: A solid lithium cell is formed by stacking an etched copper substrate, a layer of graphite, an electrolyte, and a layer of nickel, manganese, and cobalt oxides. The electrolyte is in contact with the graphite layer and the layer of nickel, manganese, and cobalt oxides. The copper substrate forms the anode of the cell. The layer of nickel, manganese and cobalt oxides forms the cathode of the cell. The electrolyte is a solid lithium-based electrolyte. The graphite layer has a first solid electrolyte interface produced during a pre-lithiation with a liquid lithium-based electrolyte and a second solid electrolyte interface produced during a pre-lithiation with the solid lithium-based electrolyte.

公开(公告)号：US20230275219A1

公开(公告)日：2023-08-31

申请号：US18315240

申请日：2023-05-10

Applicant: Applied Materials, Inc.

Inventor： Subramanya P. HERLE

IPC: H01M4/38 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/052 ,  H01M50/42 ,  H01M50/417 ,  H01M50/426 ,  H01M50/497 ,  H01M50/491 ,  H01M50/437 ,  H01M50/434 ,  H01M50/451 ,  H01M50/489 ,  H01M4/40

CPC classification number: H01M4/382 ,  H01M4/661 ,  H01M10/0525 ,  H01M4/38 ,  H01M10/052 ,  H01M50/42 ,  H01M50/417 ,  H01M50/426 ,  H01M50/497 ,  H01M50/491 ,  H01M50/437 ,  H01M50/434 ,  H01M50/451 ,  H01M50/489 ,  H01M4/405 ,  H01M2004/027

Abstract: The present disclosure generally relate to separators, high performance electrochemical devices, such as, batteries and capacitors, including the aforementioned separators, and methods for fabricating the same. In one implementation, a separator for a battery is provided. The separator comprises a substrate capable of conducting ions and at least one dielectric layer capable of conducting ions. The at least one dielectric layer at least partially covers the substrate and has a thickness of 1 nanometer to 2,000 nanometers.

公开(公告)号：US20230268516A1

公开(公告)日：2023-08-24

申请号：US18014065

申请日：2021-07-23

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jung Pil LEE ,  Hyea Eun HAN ,  Hoe Jin HAH ,  Sung Ju CHO

IPC: H01M4/66 ,  H01M4/70 ,  H01M4/04

CPC classification number: H01M4/661 ,  H01M4/0404 ,  H01M4/70

Abstract: The present disclosure relates to an all-solid-state battery including a thin film current collector and a method of manufacturing the same, and more particularly to a current collector having a thickness of less than 5 µm, which is thermally treated together with a solid electrolyte, whereby interfacial resistance between the current collector and the solid electrolyte is reduced, and therefore the overall size of the all-solid-state battery is reduced.

公开(公告)号：US11735738B2

公开(公告)日：2023-08-22

申请号：US17511108

申请日：2021-10-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tatsuya Ikenuma

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/66 ,  H01M4/139 ,  H01M10/052 ,  H01M4/13

CPC classification number: H01M4/623 ,  H01M4/0404 ,  H01M4/049 ,  H01M4/13 ,  H01M4/139 ,  H01M4/625 ,  H01M4/663 ,  H01M4/666 ,  H01M4/667 ,  H01M10/052 ,  H01M4/661 ,  Y02E60/10 ,  Y02T10/70

Abstract: An electrode improved for achieving a storage battery having both a high electrode strength and favorable electrode conductivity is provided. The electrode includes graphene and a modified polymer in an active material layer or includes a layer substantially formed of carbon particles and an active material layer including a modified polymer over a current collector. The modified polymer has a poly(vinylidene fluoride) structure and partly has a polyene structure or an aromatic ring structure. The polyene structure or the aromatic ring structure is sandwiched between poly(vinylidene fluoride) structures.

公开(公告)号：US20230261280A1

公开(公告)日：2023-08-17

申请号：US18308789

申请日：2023-04-28

Applicant: PROLOGIUM TECHNOLOGY CO., LTD. ,  PROLOGIUM HOLDING INC.

Inventor： Szu-Nan YANG

IPC: H01M10/653 ,  H01M10/0525 ,  H01M10/42

CPC classification number: H01M10/653 ,  H01M10/0525 ,  H01M10/4235 ,  H01M4/661

Abstract: A suppression element includes a passivation composition supplier and a polar solution supplier. The passivation composition supplier is capable of releasing a metal ion (A), selected from a non-lithium alkali metal ion, an alkaline earth metal ion or a combination thereof, and an aluminum etching ion (B). The polar solution of the polar solution supplier carries the metal ion (A) and the aluminum etching ion (B) to an aluminum current collector to etched through thereof, and the metal ion (A) and the aluminum ion, generated during the etching, are seeped into the electrochemical reaction system. Then, the positive active material is transformed to a crystalline state with lower electric potential and lower energy, and the negative active material is transformed to an inorganic polymer state with higher electric potential and lower energy to prevent the thermal runaway from occurring.

公开(公告)号：US20230253571A1

公开(公告)日：2023-08-10

申请号：US17667998

申请日：2022-02-09

Applicant: SOCPRA SCIENCES ET GÉNIE S.E.C.

Inventor： Arthur DUPUY ,  Abderraouf BOUCHERIF ,  Richard ARES

IPC: H01M4/80 ,  H01M4/66

CPC classification number: H01M4/80 ,  H01M4/661 ,  H01M4/667 ,  H01M2004/027

Abstract: An anode for batteries having a columnar nanostructured porous germanium for its active material. This nanostructured porous germanium can be produced with the novel etching method disclosed herein. Such anode can be easily mass-produced with the presented method that requires pre-existing, affordable and easy to integrate equipment. In some embodiments, the produced columnar porous germanium can be directly used as a monolithic anode after its etching nanostructuration for on-chip anodes for example, where the anisotropic nanostructured germanium acts as the active material and where the remaining bulk germanium layer act as the current collector. This can be easily implemented in lithium batteries. The cycle life of such anodes could be extended by a factor of 26 and 1.8 for high rate and high energy applications, respectively.

公开(公告)号：US11721812B2

公开(公告)日：2023-08-08

申请号：US17292433

申请日：2018-11-09

Applicant: XINGYAO TECHNOLOGY (SHENZHEN) CO., LTD

Inventor： Jingrui Xu

IPC: H01M4/66 ,  C23C28/00

CPC classification number: H01M4/667 ,  C23C28/345 ,  C23C28/42 ,  H01M4/661 ,  H01M4/668 ,  Y10T428/24975

Abstract: A film includes a base layer, where each of front and back sides of the base layer is provided with a bonding layer, a composite structure layer, an aluminum material layer, and an anti-oxidation layer in sequence. The composite structure layer includes at least two structure layers. Each structure layer is composed of an aluminum material layer and a reinforcement layer, and the structure layers are stacked. With the composite structure layer, the new film has a resistivity as low as 4.5×10−8 Ω·m, a peel force as high as 4.8 N to 5.2 N, and improved bonding force and compactness.

公开(公告)号：US11718906B2

公开(公告)日：2023-08-08

申请号：US17188571

申请日：2021-03-01

Applicant: TREADSTONE TECHNOLOGIES, INC.

Inventor： Conghua Wang ,  Yong Tao ,  Lin Zhang ,  Gerald A. Gontarz

IPC: C23C14/32 ,  C23C4/02 ,  C23C4/08 ,  C23C8/10 ,  C23C14/16 ,  C23C28/00 ,  C23F1/26 ,  C25B15/00 ,  H01G9/055 ,  H01G11/70 ,  H01M8/0206 ,  H01M8/0208 ,  H01M8/0228 ,  C21D6/00 ,  C21D9/00 ,  C22C14/00 ,  C22F1/18 ,  C23C4/12 ,  C23C14/02 ,  C23C14/35 ,  C23F1/28 ,  C23F17/00 ,  H01M8/021 ,  H01M8/1018 ,  H01M4/66 ,  H01M8/10

CPC classification number: C23C14/325 ,  C21D6/002 ,  C21D9/0068 ,  C22C14/00 ,  C22F1/183 ,  C23C4/02 ,  C23C4/08 ,  C23C4/12 ,  C23C8/10 ,  C23C14/02 ,  C23C14/021 ,  C23C14/16 ,  C23C14/165 ,  C23C14/35 ,  C23C28/321 ,  C23C28/345 ,  C23F1/26 ,  C23F1/28 ,  C23F17/00 ,  C25B15/00 ,  H01G9/055 ,  H01G11/70 ,  H01M8/021 ,  H01M8/0206 ,  H01M8/0208 ,  H01M8/0228 ,  H01M8/1018 ,  H01M4/661 ,  H01M4/662 ,  H01M4/667 ,  H01M2008/1095 ,  Y02E60/13

Abstract: Method for forming a metallic component surface to achieve lower electrical contact resistance. The method comprises modifying a surface chemical composition and creating a micro-textured surface structure of the metallic component that includes small peaks and/or pits. The small peaks and pits have a round or irregular cross-sectional shape with a diameter between 10 nm and 10 microns, a height/depth between 10 nm and 10 microns, and a distribution density between 0.4 million/cm2 and 5 billion cm2.

公开(公告)号：US20230246161A1

公开(公告)日：2023-08-03

申请号：US17882246

申请日：2022-08-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qili SU ,  Zhe LI ,  Dewen KONG ,  Mengyan HOU ,  Haijing LIU

IPC: H01M4/139 ,  H01M4/36 ,  H01M4/66 ,  H01M4/74 ,  H01M10/058 ,  H01M10/0525

CPC classification number: H01M4/139 ,  H01M4/74 ,  H01M4/366 ,  H01M4/661 ,  H01M10/058 ,  H01M10/0525 ,  H01M2004/027

Abstract: A pre-lithiated, precursor electrode includes an electroactive material layer, a current collector, and a lithium foil disposed between the electroactive material layer and the current collector. A method of preparing an electrode to be used in an electrochemical cell is provide. The method includes preparing a pre-lithiated, precursor electrode. Preparing the pre-lithiated precursor electrode includes contacting at least a first electroactive material layer with a first surface of a lithium foil assembly, where the lithium foil assembly includes a current collector and at least a first lithium foil disposed on or adjacent to a first surface of the current collector. The method may further include contacting the prelithiated, precursor electrode with an electrolyte in the electrochemical cell, where the first lithium foil at least partially or fully dissolves when contacted by the electrolyte to form the electrode and a lithium reservoir in the electrochemical cell.

公开(公告)号：US20230207832A1

公开(公告)日：2023-06-29

申请号：US18176321

申请日：2023-02-28

Applicant: Graphenix Development, Inc.

Inventor： John C. Brewer ,  Kevin Tanzil ,  Paul D. Garman ,  Robert G. Anstey

IPC: H01M4/66 ,  H01M4/62 ,  H01M4/38 ,  H01M4/131 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/1391 ,  H01M4/134 ,  H01M4/1395

CPC classification number: H01M4/661 ,  H01M4/626 ,  H01M4/386 ,  H01M4/131 ,  H01M4/0428 ,  H01M10/0525 ,  H01M4/1391 ,  H01M4/134 ,  H01M4/0442 ,  H01M4/669 ,  H01M4/1395 ,  H01M4/667 ,  H01M4/0404 ,  H01M2004/021

Abstract: An anode for a lithium-based energy storage device such as a lithium-ion battery is disclosed. The anode includes an electrically conductive current collector comprising an electrically conductive layer and a transition metal oxide layer overlaying the electrically conductive layer. The anode may include a continuous porous lithium storage layer provided over the transition metal oxide layer. The continuous porous lithium storage layer may include at least 80 atomic % amorphous silicon and a silicide-forming metallic element in a range of 0.1 to 10 atomic %. A method of making the anode may include providing an electrically conductive current collector having an electrically conductive layer and a transition metal oxide layer provided over the electrically conductive layer. The transition metal oxide layer may have an average thickness of at least 0.05 μm. A continuous porous lithium storage layer is deposited over the transition metal oxide layer by PECVD.