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1. WO2020139881 - METAL-AIR CELLS WITH MINIMAL AIR ACCESS

Publication Number WO/2020/139881
Publication Date 02.07.2020
International Application No. PCT/US2019/068473
International Filing Date 24.12.2019
IPC
H01M 6/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
6Primary cells; Manufacture thereof
04Cells with aqueous electrolyte
H01M 10/42 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/52 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
52Removing gases inside the secondary cell, e.g. by absorption
CPC
H01M 12/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
12Hybrid cells; Manufacture thereof
02Details
H01M 12/06
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
12Hybrid cells; Manufacture thereof
04composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
06with one metallic and one gaseous electrode
H01M 2300/0014
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2300Electrolytes
0002Aqueous electrolytes
0014Alkaline electrolytes
H01M 4/244
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
24Electrodes for alkaline accumulators
244Zinc electrodes
H01M 50/1385
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
10Primary casings, jackets or wrappings of a single cell or a single battery
138adapted for specific cells, e.g. electrochemical cells operating at high temperature
1385Hybrid cells
H01M 50/394
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
30Arrangements for facilitating escape of gases
394Gas-pervious parts or elements
Applicants
  • ENERGIZER BRANDS, LLC [US]/[US]
Inventors
  • POZDOL, Ian
  • SYVERTSEN, Marc
  • RUBSAM, Tony
  • SCHNETZ, Kokkie
Agents
  • MCPARLAND, James
  • LOMPREY, Jeffrey
  • KING, Christopher
  • EL MENAOUAR, Melissa
Priority Data
62/785,61927.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METAL-AIR CELLS WITH MINIMAL AIR ACCESS
(FR) CELLULES MÉTAL-AIR AVEC ACCÈS À L'AIR MINIMAL
Abstract
(EN)
The present technology provides a battery that includes an air cathode, an anode, an aqueous electrolyte that includes an amphoteric surfactant, and a housing that includes one or more air access ports defining a total area of void space ("vent area"), where (1) the battery is a size 13 metal-air battery and the total vent area defined by all of the air access ports is from about 0.050 mm2 to about 0.115 mm2; or (2) the battery is a size 312 metal-air battery and the total vent area defined by all of the air access ports is from about 0.03 mm2 to about 0.08 mm2.
(FR)
La présente invention concerne une batterie qui comprend une cathode à air, une anode, un électrolyte aqueux qui comprend un tensioactif amphotère, et un boîtier qui comprend un ou plusieurs orifices d'accès à l'air qui définit une superficie totale d'espace vide ("superficie d'évent"), où (1) la batterie est une batterie métal-air de taille 13 et la superficie d'évent totale définie par tous les orifices d'accès à l'air est d'environ 0,050 mm2 à environ 0,115 mm2 ; ou (2) la batterie est une batterie métal-air de taille 312 et la superficie d'évent totale définie par tous les orifices d'accès à l'air est d'environ 0,03 mm2 à environ 0,08 mm2.
Also published as
Latest bibliographic data on file with the International Bureau