公开(公告)号：US12002958B2

公开(公告)日：2024-06-04

申请号：US17928195

申请日：2021-05-28

Applicant: SHOWA DENKO K. K.

Inventor： Naoto Kawaguchi ,  Yuji Ito ,  Masato Fujita ,  Hirofumi Inoue

IPC: H01M4/587 ,  C01B32/318 ,  C01B32/342 ,  C01B32/372 ,  H01M4/36 ,  H01M4/38 ,  H01M4/62 ,  H01M4/02

CPC classification number: H01M4/587 ,  C01B32/318 ,  C01B32/342 ,  C01B32/372 ,  H01M4/366 ,  H01M4/386 ,  H01M4/622 ,  H01M4/625 ,  C01P2002/02 ,  C01P2002/72 ,  C01P2002/74 ,  C01P2002/82 ,  C01P2004/61 ,  C01P2004/80 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/40 ,  H01M2004/021 ,  H01M2004/027

Abstract: The present invention relates to composite particles containing silicon and carbon, wherein a domain size region of vacancies of 2 nm or less is 44% by volume or more and 70% by volume or less when volume distribution information of domain sizes obtained by fitting a small-angle X-ray scattering spectrum of the composite particles with a spherical model in a carbon-vacancy binary system is accumulated in ascending order, and a true density calculated by dry density measurement by a constant volume expansion method using helium gas is 1.80 g/cm3 or more and 2.20 g/cm3 or less.

公开(公告)号：US20240178516A1

公开(公告)日：2024-05-30

申请号：US18477100

申请日：2023-09-28

Applicant: Samsung SDI Co., Ltd.

Inventor： Taehyun Park ,  Inhyuk Son ,  Sungnim Jo ,  Kyueun Shim ,  Jieun Lee

IPC: H01M50/383 ,  H01M4/136 ,  H01M4/58 ,  H01M4/62 ,  H01M4/66 ,  H01M10/052 ,  H01M10/056 ,  H01M10/42

CPC classification number: H01M50/383 ,  H01M4/136 ,  H01M4/5815 ,  H01M4/625 ,  H01M4/667 ,  H01M10/052 ,  H01M10/056 ,  H01M10/4235 ,  H01M2004/028 ,  H01M2300/008 ,  H01M2300/0085 ,  H01M2300/0091

Abstract: An all-solid secondary battery including a positive electrode layer including a positive current collector and a positive active material layer on one or more surfaces of the positive current collector is provided. The battery includes a negative electrode layer and a solid electrolyte layer between the positive electrode layer and the negative electrode layer. The positive active material layer includes a composite electrolyte and a lithium-containing sulfide-based positive active material including Li2S and/or a Li2S— containing composite. The composite electrolyte includes a polymer, a lithium salt, and an ionic liquid having a saturated solubility of lithium polysulfide of 5 wt % or less at 25° C.

公开(公告)号：US20240178401A1

公开(公告)日：2024-05-30

申请号：US18509758

申请日：2023-11-15

Applicant: SK On Co., Ltd.

Inventor： Byoung Ho Ko

IPC: H01M4/62 ,  C09D5/24 ,  C09D7/40 ,  C09D7/61 ,  C09D133/04 ,  H01M4/13

CPC classification number: H01M4/625 ,  C09D5/24 ,  C09D7/61 ,  C09D7/70 ,  C09D133/04 ,  H01M4/13 ,  H01M2004/028

Abstract: A conductive material dispersed solution includes an acrylic dispersant containing an acrylic compound, a conductive material, and a dispersion medium. A solids content of the conductive material dispersed solution is 3% by weight or more, and a shear viscosity value of the conductive material dispersed solution measured at 25° C. and a shear rate of 1/s is 70 Pa·s or less. Provided is a conductive material dispersed solution, in which the conductive material is pre-dispersed to an excellent level through an acrylic dispersant to effectively improve dispersibility of the conductive material when added to the cathode slurry composition, and high solids characteristics of the cathode slurry and the like may be secured by suppressing aggregation between active material particles in the cathode slurry.

公开(公告)号：US20240178400A1

公开(公告)日：2024-05-30

申请号：US18432903

申请日：2024-02-05

Applicant: The Government of the United States of America, as represented by the Secretary of the Navy

Inventor： Megan B. Sassin ,  Jeffrey W. Long ,  Debra R. Rolison

IPC: H01M4/62 ,  B82Y30/00 ,  H01M4/02 ,  H01M4/04 ,  H01M4/50 ,  H01M4/86 ,  H01M4/96

CPC classification number: H01M4/625 ,  H01M4/043 ,  H01M4/50 ,  H01M4/622 ,  H01M4/861 ,  H01M4/96 ,  B82Y30/00 ,  H01M2004/021

Abstract: A laminated article having a first layer and a second layer. Each layer has a porous carbon structure and a porous polymer. The pores of the two porous polymers are from 1 nanometer to 10 microns in diameter, and the two porous polymers have different pore size distributions. A method of making the laminated article by hot-pressing the two or more layers. The article may be used in an electrochemical cell.

公开(公告)号：US20240174531A1

公开(公告)日：2024-05-30

申请号：US18285086

申请日：2022-03-31

Applicant: JOHNSON MATTHEY PUBLIC LIMIITED COMPANY

Inventor： Yang Liu

IPC: C01G45/12 ,  H01M4/505 ,  H01M4/62 ,  H01M10/0525

CPC classification number: C01G45/1228 ,  H01M4/505 ,  H01M4/625 ,  H01M10/0525 ,  C01P2002/60 ,  C01P2002/72 ,  C01P2002/76 ,  C01P2002/77 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2006/40

Abstract: The present invention provides a lithium metal oxide composition, a method of synthesis of said composition, an electrode and a battery incorporating said composition, and a use of said composition. The lithium metal oxide composition has a cation-disordered rock salt structure, and a non-stoichiometric composition such that lithium vacancies are present in the material. The lithium metal oxide composition has a general formula: Li1+xM′yM1-x-y-βO2, wherein M comprises a transition metal element, M′ comprises a redox-inactive d0 element, and wherein 0

公开(公告)号：US11996546B2

公开(公告)日：2024-05-28

申请号：US16985983

申请日：2020-08-05

Applicant: RESEARCH FOUNDATION OF THE CITY UNIVERSITY OF NEW YORK

Inventor： Nilesh Ingale ,  Tal Sholklapper ,  Sanjoy Banerjee ,  Michael Nyce

IPC: H01M10/28 ,  H01M4/24 ,  H01M4/29 ,  H01M4/30 ,  H01M4/50 ,  H01M4/62 ,  H01M4/66 ,  H01M4/74 ,  H01M4/80 ,  H01M50/417 ,  H01M50/429 ,  H01M50/44 ,  H01M50/463 ,  H01M50/70 ,  H01M50/77 ,  H02J7/00 ,  H01M4/02

CPC classification number: H01M4/29 ,  H01M4/24 ,  H01M4/244 ,  H01M4/30 ,  H01M4/50 ,  H01M4/622 ,  H01M4/625 ,  H01M4/661 ,  H01M4/74 ,  H01M4/80 ,  H01M4/806 ,  H01M10/28 ,  H01M50/417 ,  H01M50/429 ,  H01M50/4295 ,  H01M50/44 ,  H01M50/463 ,  H01M50/70 ,  H01M50/77 ,  H02J7/0068 ,  H01M2004/021 ,  H01M4/62

Abstract: In an embodiment, a secondary Zn—MnO2 battery comprises a battery housing, a MnO2 cathode, a Zn anode, and an electrolyte solution. The MnO2 cathode, the Zn anode, and the electrolyte solution are disposed within the battery housing, and the MnO2 cathode comprises a MnO2 cathode mixture and a current collector. The MnO2 cathode mixture is in electrical contact with at least a portion of an outer surface of the current collector, and the MnO2 cathode has a porosity of from about 5 vol. % to about 90 vol. %, based on the total volume of the MnO2 cathode mixture of the MnO2 cathode.

公开(公告)号：US11996516B2

公开(公告)日：2024-05-28

申请号：US17643187

申请日：2021-12-08

Applicant: HONDA MOTOR CO., LTD.

Inventor： Akihisa Tanaka ,  Yoshiyuki Morita

IPC: H01M10/0562 ,  H01M4/58 ,  H01M4/62 ,  H01M4/02

CPC classification number: H01M10/0562 ,  H01M4/582 ,  H01M4/625 ,  H01M2004/027 ,  H01M2300/0068 ,  H01M2300/008

Abstract: There is provided an anode layer including an anode active material, a conductive aid, and a solid electrolyte, the anode active material including a lanthanoid fluoride doped with an alkaline earth metal fluoride, the conductive aid including a carbon material, the solid electrolyte including at least one of BaCaF4 and SrCaF4, and the lanthanoid fluoride doped with the alkaline earth metal fluoride and the carbon material forming a complex. There is also provided a fluoride ion secondary battery including the anode layer, an electrolyte, and a cathode layer.

公开(公告)号：US20240170228A1

公开(公告)日：2024-05-23

申请号：US18263618

申请日：2022-02-04

Applicant: HYDRO-QUÉBEC

Inventor： Jean-Christophe DAIGLE ,  Francis BARRAY ,  Abdelbast GUERFI ,  Benoit FLEUTOT ,  Emmanuelle GARITTE ,  Sergey KRACHKOVSKIY ,  Ki Seok KOH

IPC: H01G11/56 ,  H01G11/24 ,  H01G11/28 ,  H01G11/46 ,  H01G11/86 ,  H01M4/04 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/056

CPC classification number: H01G11/56 ,  H01G11/24 ,  H01G11/28 ,  H01G11/46 ,  H01G11/86 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/505 ,  H01M4/525 ,  H01M4/623 ,  H01M4/625 ,  H01M10/0525 ,  H01M10/056

Abstract: The present technology relates to an ionic plastic crystal comprising at least one delocalized anion paired with at least one an organic guanidine, amidine or phosphazene organic superbase-derived cation for use in electrochemical applications, particularly in electrochemical accumulators such as batteries, electrochromic devices, and supercapacitors. The present technology also relates to an ionic plastic crystal composition, an ionic plastic crystal-based solid electrolyte composition, an ionic plastic crystal-based solid electrolyte, an electrode material comprising the ionic plastic crystal or the ionic plastic crystal composition. Their uses in electrochemical cells and electrochemical accumulators as well as their processes of manufacturing and an NHO-stabilized intermediary ion-neutral complex are also described.

公开(公告)号：US11990605B2

公开(公告)日：2024-05-21

申请号：US17739231

申请日：2022-05-09

Applicant: SK ON CO., LTD.

Inventor： Duck Chul Hwang ,  Kyung Bin Yoo ,  Kook Hyun Han

IPC: H01M4/136 ,  H01M4/04 ,  H01M4/131 ,  H01M4/1391 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0565 ,  H01M50/124

CPC classification number: H01M4/136 ,  H01M4/0404 ,  H01M4/0435 ,  H01M4/131 ,  H01M4/364 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M10/0565 ,  H01M50/124 ,  H01M50/1245 ,  H01M4/1391 ,  H01M10/052 ,  H01M10/0525 ,  H01M2300/0082

Abstract: A lithium secondary battery comprises a cathode formed from a cathode active material including a first cathode active material particle and a second cathode active material particle, an anode and a separator interposed between the cathode and the anode. The first cathode active material particle includes a lithium metal oxide including a continuous concentration gradient in at least one region between a central portion and a surface portion. The second cathode active material particle includes a constant concentration composition.

公开(公告)号：US20240162447A1

公开(公告)日：2024-05-16

申请号：US18511047

申请日：2023-11-16

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Yosuke KOIKE

IPC: H01M4/62 ,  H01M4/02 ,  H01M4/134 ,  H01M4/38 ,  H01M10/0525 ,  H01M10/0562

CPC classification number: H01M4/625 ,  H01M4/134 ,  H01M4/386 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2300/0025 ,  H01M2300/0068

Abstract: A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes first fiber parts, particle parts, and second fiber parts, and has voids. The first fiber parts are coupled to each other to thereby form a three-dimensional mesh structure having the voids. The first fiber parts each include carbon as a constituent element. The particle parts cover surfaces of the first fiber parts. Some of the particle parts are coupled to each other. The particle parts each include silicon as a constituent element. At least some of the second fiber parts are coupled to surfaces of the particle parts. The second fiber parts each include carbon as a constituent element. The first fiber parts have an average fiber diameter that is greater than or equal to 50 nm and less than or equal to 7000 nm. The second fiber parts have an average fiber diameter that is greater than or equal to 1 nm and less than or equal to 200 nm. The negative electrode has a void rate that is greater than or equal to 42 vol % and less than or equal to 73 vol %.