公开(公告)号：US20250070249A1

公开(公告)日：2025-02-27

申请号：US18940497

申请日：2024-11-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Inventor： Hailin ZOU ,  Ningbo XU ,  Peipei CHEN

IPC: H01M10/0567 ,  H01M10/054 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/42

Abstract: An electrolyte solution for a sodium-ion secondary battery is described. By matching a first additive of a low-boiling-point sulfur-containing compound and a second additive of an oxalate-containing salt (a compound of formula (I)) and/or an oxalate ester (a compound of formula (II)) in the electrolyte solution, stable interface passive films are formed on a positive electrode and a negative electrode, such that the self-discharge rate and the cycling performance of the battery are improved, and meanwhile, the battery has a good power performance. The present application further relates to a sodium-ion secondary battery comprising the electrolyte solution, a battery module, a battery pack, and a power consuming device.

公开(公告)号：US20250062344A1

公开(公告)日：2025-02-20

申请号：US18721290

申请日：2022-12-16

Applicant: NIPPON ELECTRIC GLASS CO., LTD.

Inventor： Kei TSUNODA ,  Hideo YAMAUCHI

IPC: H01M4/58 ,  C03C4/14 ,  C03C10/00 ,  H01M4/02 ,  H01M10/054 ,  H01M10/0562

Abstract: Provided is a novel positive-electrode active material for a sodium-ion secondary battery having an excellent discharge capacity. A positive-electrode active material for a sodium-ion secondary battery is made of a crystallized glass containing crystals represented by a general formula Nax(Ni1−a−bMaM′b)yP2Oz (where M and M′ are transition metal elements different from each other and each at least one transition metal element selected from the group consisting of Co, Mn, Cr, Fe, and Ti, and 0.6≤x≤4, 0.3≤y≤2.7, 6≤z≤7.5, 0

公开(公告)号：US20250046863A1

公开(公告)日：2025-02-06

申请号：US18792751

申请日：2024-08-02

Applicant: UIF (University Industry Foundation), Yonsei University

Inventor： Yoon Seok Jung ,  Juhyoun Park ,  Jun Pyo Son ,  Hiram Kwak

IPC: H01M10/0562 ,  H01M10/054 ,  H01M50/403 ,  H01M50/431

Abstract: Disclosed are a composite for a solid electrolyte for a sodium all-solid-state battery, sodium all-solid-state battery, and a method of manufacturing them, the composite including sodium metal tetrachloride (NaMCl4), wherein the metal (M) represents a Group 13 element on the periodic table, and the composite includes an amorphous phase.

公开(公告)号：US20250046858A1

公开(公告)日：2025-02-06

申请号：US18717052

申请日：2022-12-07

Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM

Inventor： David MITLIN ,  Hui DONG ,  Yixian WANG

IPC: H01M10/054 ,  H01M4/02 ,  H01M4/04 ,  H01M4/1395 ,  H01M4/38 ,  H01M10/0525 ,  H01M10/0562

Abstract: Disclosed is an ionophilic template comprising a microscopic array having a formula of Ma(SbxTeyVacz), wherein an M comprises one or more of Na, Li, K, Mg, Ca, Al, Zn, or alloys thereof; a Vac refers to vacancies present in a lattice of the microscopic array; wherein 0≤a≤100, 0≤x≤1; 0≤y≤1; and 0≤z≤1, wherein the microscopic array is dispersed within a metal comprising the M, and wherein the ionophilic template is a support material for a metal anode. Also disclosed are electrochemical cells comprising such templates and methods of making and using the same.

公开(公告)号：US20250026653A1

公开(公告)日：2025-01-23

申请号：US18715052

申请日：2022-05-18

Applicant: SO-FUN TECHNOLOGY CORPORATION LIMITED

Inventor： Xiongwen XU ,  Jian TU ,  Jian XIE

IPC: C01C3/12 ,  H01M4/02 ,  H01M4/133 ,  H01M10/054

Abstract: A Prussian white composite material. The Prussian white composite material includes an inner core and a carbon coating layer that coats at least a portion of an outer surface of the inner core, where the inner core has a general formula of NaxMn1-yMy[Fe(CN)6]z, in the formula, M is selected from at least one of Fe, Co, Ni, Cu and Zn, x is greater than 1.5 and equal to or less than 2, y is greater than 0 and equal to or less than 0.3, and z is greater than 0.8 and equal to or less than 1. The Prussian white composite material of the present invention is free of crystal water (including interstitial water and coordinated water), has complete crystal lattices and good ionic conductivity and thermal stability, and is hardly decomposed at 500° C. A preparation method has the advantages of being simple in process, low in cost, short in period, low in energy consumption, suitable for industrial production and the like.

公开(公告)号：US20250019258A1

公开(公告)日：2025-01-16

申请号：US18708878

申请日：2022-10-18

Applicant: University Court of the University of St. Andrews

Inventor： Anthony Robert Armstrong ,  Philip Adam Maughan

IPC: C01G49/00 ,  H01M10/054

Abstract: A composition having the general formula: NaaMnbFecTidMeO2, wherein: M comprises one or more elements selected from the group consisting of aluminium, magnesium, zinc, copper, silicon, and zirconium; and wherein: 0.5

公开(公告)号：US12159993B2

公开(公告)日：2024-12-03

申请号：US18199430

申请日：2023-05-19

Applicant: Purdue Research Foundation

Inventor： Vilas Ganpat Pol ,  Jialiang Tang

IPC: H01M4/139 ,  B22F1/054 ,  B22F1/18 ,  B22F9/04 ,  H01M4/04 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/587 ,  H01M10/054 ,  H01M4/02

Abstract: A method of producing metallic sodium powders. The method includes immersing one or more solid pieces of sodium metal in an organic liquid containing a hydrocarbon oil. The solid piece(s) of sodium metal immersed in the hydrocarbon oil is (are) then subjected to ultrasonic irradiation, wherein the solid piece of sodium metal is fragmented to form sodium powder, resulting in a dispersion of the sodium powder in the organic liquid. The dispersed sodium powder is then separated from the organic liquid, resulting in metallic sodium powder. A method of presodiation of an anode in an electrochemical cell. The method includes adding sodium metal powders to the surface of the anode either as a dry powder or as a suspension of the sodium particles in an organic liquid. An anode in an electrochemical cell containing metallic sodium particles. An electrochemical cell comprising a presodiated anode.

公开(公告)号：US12125993B2

公开(公告)日：2024-10-22

申请号：US18224344

申请日：2023-07-20

Applicant: Wisconsin Alumni Research Foundation

Inventor： Kyoung-Shin Choi ,  Dohwan Nam ,  Margaret Lumley

IPC: H01M10/44 ,  H01M4/38 ,  H01M4/58 ,  H01M8/18 ,  H01M10/054 ,  H01M10/36 ,  H01M10/42

CPC classification number: H01M10/44 ,  H01M4/38 ,  H01M4/5825 ,  H01M8/184 ,  H01M10/054 ,  H01M10/36 ,  H01M10/4214 ,  H01M2300/0002

Abstract: Dual-functional energy storage systems that couple ion extraction and recovery with energy storage and release are provided. The dual-functional energy storage systems use ion-extraction and ion-recovery as charging processes. As the energy used for the ion extraction and ion recovery processes is not consumed, but rather stored in the system through the charging process, and the majority of the energy stored during charging can be recovered during discharging, the dual-functional energy storage systems perform useful functions, such as solution desalination or lithium-ion recovery with a minimal energy input, while storing and releasing energy like a conventional energy storage system.

公开(公告)号：US12113164B2

公开(公告)日：2024-10-08

申请号：US18315245

申请日：2023-05-10

Applicant: Sila Nanotechnologies, Inc.

Inventor： Gleb Yushin ,  Bogdan Zdyrko ,  Alexander Thomas Jacobs ,  Eugene Michael Berdichevsky

IPC: H01M10/0525 ,  H01M10/054 ,  H01M10/42 ,  H01M10/44 ,  H01M50/691

CPC classification number: H01M10/0525 ,  H01M10/054 ,  H01M10/4235 ,  H01M10/446 ,  H01M50/691 ,  Y02T10/70 ,  Y10T29/49108

Abstract: Metal-ion battery cells are provided that take advantage of the disclosed “doping” process. The cells may be fabricated from anode and cathode electrodes, a separator, and an electrolyte. A metal-ion additive may be incorporated into (i) one or more of the electrodes, (ii) the separator, or (iii) the electrolyte. The metal-ion additive provides additional donor ions corresponding to the metal ions stored and released by anode and cathode active material particles. An activation potential may then be applied to the anode and cathode electrodes to release the additional donor ions into the battery cell.

公开(公告)号：US20240332530A1

公开(公告)日：2024-10-03

申请号：US18740192

申请日：2024-06-11

Applicant: Sila Nanotechnologies, Inc.

Inventor： Gleb YUSHIN ,  Adam KAJDOS

IPC: H01M4/587 ,  H01G11/24 ,  H01G11/34 ,  H01G11/42 ,  H01G11/44 ,  H01G11/56 ,  H01G11/86 ,  H01M4/02 ,  H01M10/052 ,  H01M10/054

CPC classification number: H01M4/587 ,  H01G11/24 ,  H01G11/34 ,  H01G11/42 ,  H01G11/44 ,  H01G11/56 ,  H01G11/86 ,  H01M10/052 ,  H01M10/054 ,  H01M2004/021

Abstract: An embodiment is directed to an electrode composition for use in an energy storage device cell. The electrode comprises composite particles, each comprising carbon that is biomass-derived and active material. The active material exhibits partial vapor pressure below around 10−13 torr at around 400 K, and an areal capacity loading of the electrode composition ranges from around 2 mAh/cm2 to around 16 mAh/cm2.