公开(公告)号：US12040478B2

公开(公告)日：2024-07-16

申请号：US16674224

申请日：2019-11-05

Applicant: Enevate Corporation

Inventor： Giulia Canton ,  Benjamin Park ,  Fred Bonhomme ,  David J. Lee ,  Ian Browne

IPC: H01M4/134 ,  H01M4/04 ,  H01M4/1395 ,  H01M4/66 ,  H01M4/74 ,  H01M10/0525

CPC classification number: H01M4/134 ,  H01M4/0435 ,  H01M4/1395 ,  H01M4/661 ,  H01M4/745 ,  H01M10/0525

Abstract: Systems and methods for anisotropic expansion of silicon-dominant anodes may include a cathode, an electrolyte, and an anode, where the anode may include a current collector and an active material on the current collector. An expansion of the anode during operation may be configured by a roughness and/or thickness of the current collector, a metal used for the current collector, and/or a lamination process that adheres the active material to the current collector. The expansion of the anode may be more anisotropic for thicker current collectors. A thicker current collector may be 10 μm thick or greater. The expansion of the anode may be more anisotropic for more rigid materials used for the current collector. A more rigid current collector may include nickel and a less rigid current collector may include copper. The expansion of the anode may be more anisotropic for a rougher surface current collector.

公开(公告)号：US20240234705A1

公开(公告)日：2024-07-11

申请号：US18372308

申请日：2023-09-25

Applicant: 24M Technologies, Inc. ,  Kyocera Corporation

Inventor： Naoki OTA ,  Mihai DUDUTA ,  Takaaki FUKUSHIMA ,  Hiuling Zoe YU ,  Taison TAN ,  Hiromitsu MISHIMA

IPC: H01M4/38 ,  H01M4/02 ,  H01M4/04 ,  H01M4/133 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/485 ,  H01M4/587 ,  H01M4/62 ,  H01M10/04 ,  H01M10/0525 ,  H01M10/058

CPC classification number: H01M4/382 ,  H01M4/049 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/364 ,  H01M4/587 ,  H01M4/625 ,  H01M10/049 ,  H01M10/0525 ,  H01M10/058 ,  H01M2004/027 ,  H01M4/0495 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/386 ,  H01M4/387 ,  H01M4/485

Abstract: Embodiments described herein relate generally to electrochemical cells having pre-lithiated semi-solid electrodes, and particularly to semi-solid electrodes that are pre-lithiated during the mixing of the semi-solid electrode slurry such that a solid-electrolyte interface (SEI) layer is formed in the semi-solid electrode before the electrochemical cell formation. In some embodiments, a semi-solid electrode includes about 20% to about 90% by volume of an active material, about 0% to about 25% by volume of a conductive material, about 10% to about 70% by volume of a liquid electrolyte, and lithium (as lithium metal, a lithium-containing material, and/or a lithium metal equivalent) in an amount sufficient to substantially pre-lithiate the active material. The lithium metal is configured to form a solid-electrolyte interface (SEI) layer on a surface of the active material before an initial charging cycle of an electrochemical cell that includes the semi-solid electrode.

公开(公告)号：US20240234681A9

公开(公告)日：2024-07-11

申请号：US18364196

申请日：2023-08-02

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： GA HYEON IM ,  Yun Sung Kim ,  So Yeon Kim ,  Kyu Joon Lee ,  Hong Seok Min ,  Yoon Kwang Lee

IPC: H01M4/133 ,  H01M4/04 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/66 ,  H01M10/0585

CPC classification number: H01M4/133 ,  H01M4/0404 ,  H01M4/134 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/661 ,  H01M4/663 ,  H01M4/667 ,  H01M4/668 ,  H01M4/669 ,  H01M10/0585 ,  H01M2004/027

Abstract: An anodeless all-solid-state battery includes an anode current collector, a composite structure layer positioned on the anode current collector, a solid electrolyte positioned on the composite structure layer, and a cathode positioned on the solid electrolyte, in which the composite structure layer includes a carbon layer including a carbon material, and a metal deposition layer positioned on the carbon layer and including lithiophilic metal particles.

公开(公告)号：US20240234679A9

公开(公告)日：2024-07-11

申请号：US18400926

申请日：2023-12-29

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yasuhiro HARADA ,  Kazuomi YOSHIMA ,  Norio TAKAMI

IPC: H01M4/131 ,  C01G33/00 ,  H01M4/134 ,  H01M10/0525

CPC classification number: H01M4/131 ,  C01G33/006 ,  H01M4/134 ,  H01M10/0525 ,  C01P2002/74 ,  H01M2004/027

Abstract: An electrode material may include an active material particle containing: a niobium-titanium composite oxide having an average composition in which a molar ratio of niobium to titanium (MNb/MTi) is greater than 2; and at least one element A selected from the group consisting of potassium, iron and phosphorus. The active material particle may contain the element A at a concentration in the range of 100 ppm to 2000 ppm.

公开(公告)号：US12034163B2

公开(公告)日：2024-07-09

申请号：US17492774

申请日：2021-10-04

Applicant: CAMX Power LLC

Inventor： Thomas Carney ,  Rahul Malik ,  David Ofer ,  Kenan Sahin ,  Daniel Kaplan ,  Suresh Sriramulu

IPC: H01M4/525 ,  H01M4/134 ,  H01M4/505 ,  H01M4/66 ,  H01M10/0525 ,  H01M10/0569 ,  H01M50/105 ,  H01M50/417 ,  H01M50/46 ,  H01M4/02

CPC classification number: H01M4/525 ,  H01M4/134 ,  H01M4/505 ,  H01M4/661 ,  H01M10/0525 ,  H01M10/0569 ,  H01M50/105 ,  H01M50/417 ,  H01M50/46 ,  H01M2004/021 ,  H01M2300/0028

Abstract: Provided are electrochemical secondary cells that exhibit excellent abuse tolerance, deep discharge and overcharge conditions including at extreme temperatures and remain robust and possess excellent performance. Cells as provided herein include: a cathode a polycrystalline cathode electrochemically active material including the formula Li1+xMO2+y, wherein −0.9≤x≤0.3, −0.3≤y≤0.3, and wherein M includes Ni at 80 atomic percent or higher relative to total M, an anode including an anode electrochemically active material defined by an electrochemical redox potential of 400 mV or greater vs Li/Li+.

公开(公告)号：US12034154B2

公开(公告)日：2024-07-09

申请号：US17561273

申请日：2021-12-23

Applicant: CITY UNIVERSITY OF HONG KONG

Inventor： Chunyi Zhi ,  Longtao Ma

IPC: H01M4/00 ,  H01M4/04 ,  H01M4/134 ,  H01M4/36

CPC classification number: H01M4/366 ,  H01M4/0423 ,  H01M4/134 ,  H01M2300/0002

Abstract: A novel conversion-type rechargeable zinc (Zn) battery is constructed. A zinc fluoride (Zn/ZnF2) interface provides an artificial solid electrolyte interlayer (SEI) at the Zn/electrolyte interface that allows plating of Zn dendrite free and protects the Zn metal anode from direct exposure to bulk aqueous electrolyte. This provides the advantage that the interfacial Zn2+ ion transport is regulated, which controls nucleation distribution and the growth pattern of Zn deposition on the surface of the anode, and also improve inherent H2O/O2 resistant properties.

公开(公告)号：US20240222636A1

公开(公告)日：2024-07-04

申请号：US18563280

申请日：2022-10-07

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Young Jae KIM ,  Jaewook LEE

IPC: H01M4/62 ,  C01B33/113 ,  H01M4/134 ,  H01M4/38 ,  H01M4/02

CPC classification number: H01M4/625 ,  C01B33/113 ,  H01M4/134 ,  H01M4/386 ,  C01P2006/40 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative electrode composition, a negative electrode for a lithium secondary battery, including the same, a lithium secondary battery including the negative electrode, and a method for preparing a negative electrode composition are disclosed. The negative electrode composition including a silicon-containing active material; a negative electrode conductive material; and a negative electrode binder. The negative electrode conductive material comprises a dot-shaped conductive material and a planar conductive material. The planar conductive material has a BET specific surface area of 100.0 m2/g or more. The silicon-containing active material is present in an amount of 60 parts by weight or more based on 100 parts by weight of the negative electrode composition.

公开(公告)号：US20240222601A1

公开(公告)日：2024-07-04

申请号：US18563309

申请日：2023-03-24

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Young Jae KIM ,  Jaewook LEE

IPC: H01M4/36 ,  H01M4/133 ,  H01M4/134 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/364 ,  H01M4/133 ,  H01M4/134 ,  H01M4/386 ,  H01M4/587 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative electrode composition, a negative electrode comprising the same, and a lithium secondary battery including the negative electrode are provided. The negative electrode composition comprises a silicon-based active material, a conductive material, a binder, and a carbon-based material, the carbon-based material being included in an amount of 15 parts by weight or less based on 100 parts by weight of the negative electrode composition, having a charge capacity of 400 mAh/g or higher, a discharge capacity of 350 mAh/g or higher, and a charge/discharge efficiency of 90% or less.

公开(公告)号：US12027691B2

公开(公告)日：2024-07-02

申请号：US17006073

申请日：2020-08-28

Applicant: Pure Lithium Corporation

Inventor： Emilie Bodoin

IPC: H01M4/04 ,  C25C1/02 ,  C25D7/06 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/38 ,  H01M10/052 ,  H01M10/0585 ,  C25D7/00 ,  H01M4/02

CPC classification number: H01M4/0452 ,  C25C1/02 ,  C25D7/06 ,  H01M4/0438 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/382 ,  H01M10/052 ,  H01M10/0585 ,  C25D7/006 ,  H01M2004/027

Abstract: Methods are proposed for fabricating highly pure lithium metal electrodes from aqueous lithium salt solutions. Electrolysis is performed through lithium ion selective membranes, with constant current densities between about 10 mA/cm2 and about 50 mA/cm2 being applied for a time between about 1 minute and about 60 minutes. The electrolysis is performed under a blanketing atmosphere, the blanketing atmosphere being substantially free of lithium reactive components. Methods are further proposed for vertically integrating the electrolytic fabrication of highly pure lithium metal electrodes into the production of lithium metal batteries, the fabrication of lithium electrodes and lithium metal batteries being performed in a single facility.

公开(公告)号：US20240213444A1

公开(公告)日：2024-06-27

申请号：US18465160

申请日：2023-09-12

Applicant: SK INNOVATION CO., LTD. ,  SK ON CO., LTD.

Inventor： Kwang Ho JEONG ,  Seung Deok SEO ,  Jae Young CHOI ,  Sung Do KIM ,  Jeong A KIM ,  Do Ae YU ,  Yong Seok LEE

IPC: H01M4/134 ,  H01M4/04 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/62 ,  H01M10/42

CPC classification number: H01M4/134 ,  H01M4/0404 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395 ,  H01M4/364 ,  H01M4/366 ,  H01M4/386 ,  H01M4/587 ,  H01M4/622 ,  H01M4/625 ,  H01M10/4235 ,  H01M2004/027

Abstract: An anode for a lithium secondary battery includes an anode current collector, and an anode active material layer formed on at least one surface of the anode current collector. The anode active material layer includes an anode active material and an anode binder. The anode active material includes a plurality of composite particles, each of the composite particles include a silicon-based active material particle, and a solid electrolyte interphase (SEI) layer formed on at least a portion of a surface of the silicon-based active material particle. A relative standard deviation of thickness values of the SEI layer of the composite particles, which are measured by an X-ray photoelectron spectroscopy (XPS) from 9 different composite particles among the plurality of composite particles after repeating 100 cycles of charging and discharging is 20% or less.