公开(公告)号：US20240291031A1

公开(公告)日：2024-08-29

申请号：US18570587

申请日：2022-06-03

Applicant: VARTA Microbattery GmbH ,  Fundación CIDETEC

Inventor： Idoia Urdampilleta González ,  Martin Krebs ,  Iñaki Gómez Agúndez ,  Luis Cesar Colmenares Rausseo ,  Jose Alberto Blázquez Martin

IPC: H01M10/0565 ,  H01M4/02 ,  H01M4/04 ,  H01M4/42 ,  H01M4/48 ,  H01M4/62

CPC classification number: H01M10/0565 ,  H01M4/0414 ,  H01M4/42 ,  H01M4/483 ,  H01M4/622 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2300/0082 ,  H01M2300/0085

Abstract: An electrolyte hydrogel for an electrochemical cell includes a self standing polymer network with a crosslinked, non-ionic polymer and a cationic polymer and a salt in an aqueous solvent and/or dispersant.

公开(公告)号：US20240162429A1

公开(公告)日：2024-05-16

申请号：US18281407

申请日：2022-03-09

Applicant: SAFT

Inventor： Mélanie VILLALOBOS ,  Anaîs BERTHELLEMY ,  Tanalou BOURA

IPC: H01M4/42 ,  H01M4/02 ,  H01M4/24 ,  H01M10/32

CPC classification number: H01M4/42 ,  H01M4/24 ,  H01M10/32 ,  H01M2004/021

Abstract: A paste electrode comprising a current collector support, which is coated on at least one of its faces with a coating composed of a composition comprising an active material comprising an alloy of zinc with one or more chemical elements, and one or more binders. This electrode may be used as an anode of an electrochemical cell comprising alkaline electrolyte. The coating contains at most 0.5% by mass of mercury or mercury compound. The electrode in spite of this presents effective resistance to corrosion by the electrolyte.

公开(公告)号：US11892513B2

公开(公告)日：2024-02-06

申请号：US17976071

申请日：2022-10-28

Applicant: DURACELL U.S. OPERATIONS, INC.

Inventor： Michael Pozin ,  Brianna Rose Derooy ,  Nikolai N. Issaev

IPC: G01R31/382 ,  H01M4/50 ,  G01R31/389 ,  H01M4/42 ,  H01M6/04 ,  H01M4/02

CPC classification number: G01R31/382 ,  G01R31/389 ,  H01M4/42 ,  H01M4/50 ,  H01M6/04 ,  H01M2004/021

Abstract: The invention is directed toward a primary AA alkaline battery. The primary AA alkaline battery includes an anode; a cathode; an electrolyte; and a separator between the anode and the cathode. The anode includes an electrochemically active anode material. The cathode includes an electrochemically active cathode material. The electrolyte includes potassium hydroxide. The primary AA alkaline battery has an integrated in-cell ionic resistance (Ri) at 22° C. of less than about 39 mΩ. The separator has a porosity of greater than 70%.

公开(公告)号：US11888163B2

公开(公告)日：2024-01-30

申请号：US17372523

申请日：2021-07-12

Applicant: FDK CORPORATION

Inventor： Takuro Manabe ,  Yuya Suzuki ,  Toshiaki Nakano

IPC: H01M50/00 ,  H01M4/62 ,  H01M50/469 ,  H01M4/42 ,  H01M4/50 ,  H01M6/08

CPC classification number: H01M4/623 ,  H01M4/42 ,  H01M4/50 ,  H01M6/08 ,  H01M50/469

Abstract: An alkaline battery includes a bottomed tubular battery can made of metal, serving as a positive electrode current collector; a positive electrode mixture sealed in the battery can and formed in a cylindrical shape, the positive electrode mixture containing manganese dioxide as a positive electrode active material and containing a binder including fluorine resin such that a ratio of the binder to the positive electrode active material is 0.2 wt % or more and 0.8 wt % or less; a bottomed tubular separator sealed in the battery can and arranged on an inner peripheral side of the positive electrode mixture; a gel-form negative electrode mixture sealed in the battery can, arranged inside the separator, containing zinc powder as a negative electrode active material; and an electrolyte that includes an alkaline aqueous solution, sealed in the battery can.

公开(公告)号：US11784375B2

公开(公告)日：2023-10-10

申请号：US17316087

申请日：2021-05-10

Applicant: Energizer Brands, LLC

Inventor： M. Edgar Armacanqui ,  Andrew J. Roszkowski ,  Donald Raymond Crowe ,  Enqing Zhu ,  John L. Hadley ,  Matthew Hennek ,  Tim F. Turba

IPC: H01M50/44 ,  H01M50/414 ,  H01M50/489 ,  H01M4/24 ,  H01M4/42 ,  H01M4/02

CPC classification number: H01M50/44 ,  H01M4/244 ,  H01M4/42 ,  H01M50/414 ,  H01M50/489 ,  H01M2004/021 ,  H01M2004/023 ,  H01M2004/027 ,  H01M2300/0014

Abstract: An alkaline electrochemical cell includes a cathode; a gelled anode having an anode active material and an electrolyte; and a separator disposed between the cathode and the anode; wherein the separator includes a non-conductive, porous material having a mean pore size of about 1 micron to about 5 microns, a maximum pore size of about 19 microns, and an air permeability of about 0.5 cc/cm2/s to about 3.8 cc/cm2/s at 125 Pa.

公开(公告)号：US20230282816A1

公开(公告)日：2023-09-07

申请号：US18177586

申请日：2023-03-02

Applicant: Battelle Memorial Institute

Inventor： Matthew R. Fayette ,  Xiaolin Li ,  David M. Reed

IPC: H01M4/42 ,  H01M4/04 ,  H01M10/36 ,  H01M4/60

CPC classification number: H01M4/42 ,  H01M4/0404 ,  H01M10/36 ,  H01M4/0452 ,  H01M4/60 ,  H01M2004/027

Abstract: Indium zinc-based alloy anodes include an InxMyZnz alloy, where x ranges from 0.03 to 0.20, z ranges from 0.80 to 0.97, and x+y+z=1 when the anode has not previously been cycled. M is Al, Ag, Bi, Sn, Cd, or any combination thereof. In a partially or fully discharged state after one or more cycles, the anode includes a porous surface portion enriched in indium and a bulk portion comprising the InxMyZnz alloy. In a subsequent partially or fully charged state, the pores may be at least partially filled with zinc.

公开(公告)号：US20230261319A1

公开(公告)日：2023-08-17

申请号：US18308270

申请日：2023-04-27

Applicant: Energizer Brands, LLC

Inventor： M. Edgar ARMACANQUI ,  Andrew J. ROSZKOWSKI ,  Donald Raymond CROWE ,  Enqing ZHU ,  John L. HADLEY ,  Matthew HENNEK ,  Tim F. TURBA

IPC: H01M50/44 ,  H01M4/24 ,  H01M4/42 ,  H01M50/414 ,  H01M50/489

CPC classification number: H01M50/44 ,  H01M4/42 ,  H01M4/244 ,  H01M50/414 ,  H01M50/489 ,  H01M2004/021

Abstract: An alkaline electrochemical cell includes a cathode; a gelled anode having an anode active material and an electrolyte; and a separator disposed between the cathode and the anode; wherein the separator includes a non-conductive, porous material having a mean pore size of about 1 micron to about 5 microns, a maximum pore size of about 19 microns, and an air permeability of about 0.5 cc/cm2/s to about 3.8 cc/cm2/s at 125 Pa.

公开(公告)号：US20230238650A1

公开(公告)日：2023-07-27

申请号：US18011420

申请日：2021-06-17

Applicant: Salient Energy Inc.

Inventor： Brian D. Adams ,  Marine B. Cuisinier ,  Susi Jin ,  John Philip S. Lee ,  Kendal Wilson ,  Haonan Yu

IPC: H01M50/449 ,  H01M10/44 ,  H01M4/42 ,  H01M50/491 ,  H01M50/434 ,  H01M50/403

CPC classification number: H01M50/449 ,  H01M10/44 ,  H01M4/42 ,  H01M50/491 ,  H01M50/434 ,  H01M50/403

Abstract: Separators for zinc metal batteries, zinc metal batteries, and methods of fabricating a separator for use in a zinc metal battery are provided. The separator includes a hydrophilic membrane having a first side for facing a negative electrode when arranged in the zinc metal battery and a second side for facing a positive electrode when arranged in the zinc metal battery. The hydrophilic membrane includes a plurality of pores traversing the hydrophilic membrane from the first side to the second side enabling flow of zinc cations between the negative electrode and the positive electrode through the separator. Each of the pores may have a pore size ranging from about 0.1 to 1.3 μm.

公开(公告)号：US11670823B2

公开(公告)日：2023-06-06

申请号：US16646469

申请日：2018-09-14

Applicant: Energizer Brands, LLC

Inventor： M. Edgar Armacanqui ,  Andrew J. Roszkowski ,  Donald Raymond Crowe ,  Enqing Zhu ,  John L. Hadley ,  Matthew Hennek ,  Tim F. Turba

IPC: H01M50/44 ,  H01M50/414 ,  H01M50/489 ,  H01M4/24 ,  H01M4/42 ,  H01M4/02

CPC classification number: H01M50/44 ,  H01M4/244 ,  H01M4/42 ,  H01M50/414 ,  H01M50/489 ,  H01M2004/021 ,  H01M2004/023 ,  H01M2004/027 ,  H01M2300/0014

Abstract: An alkaline electrochemical cell includes a cathode; a gelled anode having an anode active material and an electrolyte; and a separator disposed between the cathode and the anode; wherein the separator includes a non-conductive, porous material having a mean pore size of about 1 micron to about 5 microns, a maximum pore size of about 19 microns, and an air permeability of about 0.5 cc/cm2/s to about 3.8 cc/cm2/s at 125 Pa.

公开(公告)号：US20230163287A1

公开(公告)日：2023-05-25

申请号：US17933657

申请日：2022-09-20

Applicant: The Hong Kong University of Science and Technology

Inventor： QING CHEN ,  LIANGYU LI ,  YUNG CHAK ANSON TSANG

IPC: H01M4/42 ,  H01M10/26

CPC classification number: H01M4/42 ,  H01M10/26 ,  H01M2300/0014

Abstract: A method of making a free-standing nanoporous Zn is provided. The method includes compacting a predetermined amount of Zn compound precursor into a form of an anode; controlling a thickness of the Zn compound precursor to obtain desirable porosity; and reducing the Zn compound precursor in an electrochemical cell having an electrolyte at a predetermined volage against a reference electrode to obtain a nanoporous Zn anode. The nanoporous Zn includes continuous metal ligaments and pores each having a uniform width of around a few hundred nanometers. The nanoporous Zn may serve as an anode in a rechargeable Zn battery having the nanoporous Zn anode coupled to a conductive substrate, a physical block, an electrolyte, a reference electrode, and a cathode electrode, to deliver a high areal capacity and a long cycle life.