公开(公告)号：US20250055000A1

公开(公告)日：2025-02-13

申请号：US18366641

申请日：2023-08-07

Applicant: City University of Hong Kong

Inventor： Chunyi ZHI ,  Huilin CUI ,  Jiaxiong ZHU

IPC: H01M6/04 ,  C07D241/46 ,  H01M4/32 ,  H01M4/60 ,  H01M4/62 ,  H01M4/66

Abstract: The present invention relates to a phenazine derivative-based alkaline battery, which includes an anode formed by a phenazine derivative having 1 to 4 side group substituents, a cathode, a separator placed between the cathode and the anode and an electrolyte disposed in a space between the cathode and the anode. The present invention not only investigates the impact of hydroxyl substituents on electrochemical potential and reaction kinetics but also paves the way for the development of stable anodes for alkaline-based batteries. The phenazine derivative-based alkaline battery of the present invention exhibits a reversible capacity of at least 170 mAh g−1 at 0.2 A g−1, a power density of at least 20 KW kg−1 at 10 A g−1, a, and a stable cyclability over 9000 cycles.

公开(公告)号：US20240088452A1

公开(公告)日：2024-03-14

申请号：US18269900

申请日：2022-03-04

Applicant: AISIN CORPORATION

Inventor： Toru JOBOJI ,  Katsuhiko SAGUCHI ,  Norifumi HASEGAWA

IPC: H01M10/36 ,  H01M6/04

CPC classification number: H01M10/36 ,  H01M6/045 ,  H01M2300/0002

Abstract: A catalytic solution for a halide ion battery, which is an aqueous solution containing a quaternary ammonium halide salt or a hydrate thereof at 9.0 mol/kg to 11.0 mol/kg, is an electrolyte for a halide ion battery that has excellent safety and a wide potential window.

公开(公告)号：US20230387379A1

公开(公告)日：2023-11-30

申请号：US18251042

申请日：2020-11-20

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Masaya Nohara ,  Mikayo Iwata ,  Hiroaki Taguchi ,  Takeshi Komatsu

IPC: H01M4/06 ,  H01M4/46 ,  H01M4/52 ,  H01M4/66 ,  H01M6/46 ,  H01M4/04 ,  H01M6/04

CPC classification number: H01M4/06 ,  H01M4/46 ,  H01M4/521 ,  H01M4/661 ,  H01M2004/028 ,  H01M4/0404 ,  H01M4/663 ,  H01M6/045 ,  H01M6/46

Abstract: A primary battery including a positive electrode containing iron oxyhydroxide, a negative electrode containing magnesium or aluminum, and an electrolyte disposed between the positive electrode and the negative electrode.

公开(公告)号：US11575168B2

公开(公告)日：2023-02-07

申请号：US17365328

申请日：2021-07-01

Applicant: Energizer Brands, LLC

Inventor： Tony Rubsam ,  John Kania ,  Danielle Proffit ,  Katharine Kerr ,  Marc Syvertsen ,  Ian Pozdol

IPC: H01M12/06 ,  H01M50/138 ,  H01M6/04

Abstract: A battery includes an air cathode, an anode, an aqueous electrolyte, and a housing, wherein, the housing includes one or more air access ports defining a total vent area, the battery exhibit a current density, a ratio of current density to total vent area is greater than about 100 mA/mm2, and the aqueous electrolyte comprises an amphoteric fluorosurfactant.

公开(公告)号：US11552305B2

公开(公告)日：2023-01-10

申请号：US16455124

申请日：2019-06-27

Applicant: Energizer Brands, LLC

Inventor： Weiwei Huang ,  Frank J. Kerosky

IPC: H01M6/04 ,  H01M4/74 ,  H01M4/66 ,  H01M4/75 ,  H01M4/06 ,  H01M4/24 ,  H01M4/78 ,  H01M6/02 ,  H01M4/02

Abstract: An alkaline electrochemical cell has a central cathode having a corresponding cathode current collector electrically connected with a positive terminal of the electrochemical cell. The cathode current collector has a tubular shape, such as a cylindrical shape or rectangular shape, extending parallel with the length of the central cathode. The cathode current collector is embedded within the central cathode, such as at a medial point of a radius of the central cathode, thereby minimizing the distance between the cathode current collector and any portion of the central cathode, thereby increasing the mechanical strength of the cathode and facilitating charge transfer to the cathode current collector.

公开(公告)号：US11552304B2

公开(公告)日：2023-01-10

申请号：US16454991

申请日：2019-06-27

Applicant: Energizer Brands, LLC

Inventor： Weiwei Huang ,  Frank J. Kerosky

IPC: H01M6/04 ,  H01M4/74 ,  H01M4/66 ,  H01M4/75 ,  H01M4/06 ,  H01M4/24 ,  H01M4/78 ,  H01M6/02 ,  H01M4/02

Abstract: An alkaline electrochemical cell has a central cathode having a corresponding cathode current collector electrically connected with a positive terminal of the electrochemical cell. The cathode current collector has a tubular shape, such as a cylindrical shape or rectangular shape, extending parallel with the length of the central cathode. The cathode current collector is embedded within the central cathode, such as at a medial point of a radius of the central cathode, thereby minimizing the distance between the cathode current collector and any portion of the central cathode, thereby increasing the mechanical strength of the cathode and facilitating charge transfer to the cathode current collector.

公开(公告)号：US11411227B2

公开(公告)日：2022-08-09

申请号：US16490789

申请日：2018-03-02

Applicant: OHIO STATE INNOVATION FOUNDATION

Inventor： Shaurya Prakash ,  Vishwanath V. Subramaniam ,  Chandan Sen ,  Asimina Kiourti ,  Shomita Steiner ,  Piya Das Ghatak ,  Ramandeep Vilkhu ,  Anne Co ,  Wesley Joo-Chen Thio

IPC: A61F13/00 ,  A61L15/44 ,  D03D1/00 ,  D06M11/83 ,  H01M4/06 ,  H01M4/38 ,  H01M4/54 ,  H01M50/411 ,  H01M50/44 ,  H01M6/04 ,  A41D1/00 ,  A41D31/12

Abstract: Disclosed and described herein are systems and methods of energy generation from fabric electrochemistry. An electrical cell is created when electrodes (cathodes and anodes) are ‘printed’ on or otherwise embedded into fabrics to generate DC power when moistened by a conductive bodily liquid such as sweat, wound, fluid, etc. The latter acts, in turn, as the cell's electrolyte. A singular piece of fabric can be configured into multiple cells by dividing regions of the fabric with hydrophobic barriers and having at least one anode-cathode set in each region. Flexible inter-connections between the cells can be used to scale the generated power, per the application requirements.

公开(公告)号：US20220209233A1

公开(公告)日：2022-06-30

申请号：US17698670

申请日：2022-03-18

Applicant: DURACELL U.S. OPERATIONS, INC.

Inventor： David Lloyd Anglin ,  Jennifer Anne Nelson ,  Paul Albert Christian ,  Thomas C. Richards

IPC: H01M4/525 ,  H01M6/50 ,  H01M4/06 ,  H01M4/24 ,  H01M4/36 ,  H01M4/52 ,  H01M4/131 ,  H01M4/32 ,  H01M10/30 ,  H01M6/04 ,  H01M4/38 ,  H01M10/48

Abstract: The invention is directed towards a battery. The battery includes a cathode, an anode, a separator between the cathode and the anode, and an electrolyte. The cathode includes a conductive additive and an electrochemically active cathode material. The electrochemically active cathode material includes a beta-delithiated layered nickel oxide. The beta-delithiated layered nickel oxide has a chemical formula. The chemical formula is LixAyNi1+a−zMzO2.nH2O where x is from about 0.02 to about 0.20; y is from about 0.03 to about 0.20; a is from about 0 to about 0.2; z is from about 0 to about 0.2; and n is from about 0 to about 1. Within the chemical formula, A is an alkali metal. The alkali metal includes potassium, rubidium, cesium, and any combination thereof. Within the chemical formula, M comprises an alkaline earth metal, a transition metal, a non-transition metal, and any combination thereof. The anode includes an electrochemically active anode material. The electrochemically active anode material includes zinc, zinc alloy, and any combination thereof.

公开(公告)号：US11367900B2

公开(公告)日：2022-06-21

申请号：US17023272

申请日：2020-09-16

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jin-Hyeok Lim ,  Younghye Kang ,  Soojin Kim ,  Aeran Kim ,  Suyeol Ryu ,  Injun Park ,  Jinah Seo ,  Jeongmin Shin ,  Junyong Lee ,  Tae Jin Lee ,  Myunghwan Jeong ,  Hyejeong Jeong ,  Wonseok Cho ,  Olga Tsay ,  Hyunbong Choi ,  Pavel Shatunov

IPC: H01M6/04 ,  H01M10/0567 ,  H01M4/36 ,  H01M4/587 ,  H01M4/38 ,  H01M4/525 ,  H01M10/0525 ,  C01G51/00 ,  C01G53/00 ,  C07F9/06 ,  H01M10/0568

Abstract: The present invention relates to a lithium secondary battery. The lithium secondary battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and an electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1. The negative active material includes Si at about 0.1 wt % to about 32 wt % in amount based on a total weight of the negative active material. wherein, in Chemical Formula 1, A is a substituted or unsubstituted aliphatic chain or (—C2H4—O—C2H4-)n, and n is an integer from 1 to 10.

公开(公告)号：US20220166012A1

公开(公告)日：2022-05-26

申请号：US17601191

申请日：2020-04-06

Applicant: President and Fellows of Harvard College

Inventor： Xin LI ,  Li HAI ,  Yichao WANG

IPC: H01M4/38 ,  H01M4/525 ,  H01M6/04

Abstract: The invention provides primary batteries that incorporate a desodiated sodium transition metal oxide into the positive electrode (a cathode). Batteries of the invention using a desodiated sodium transition metal oxide in the cathode exhibit discharge voltages, battery capacities, and energy densities higher than a traditional Zn—MnO2 dry cell battery, such as a commercially available AA battery. These batteries are also advantageous over comparable lithium ion batteries due to the high abundance and low cost of sodium precursor materials with similar electrical performance.