US20040258982A1 - Battery employing an electrode pellet having an inner electrode embedded therein - Google Patents

Battery employing an electrode pellet having an inner electrode embedded therein Download PDF

Info

Publication number
US20040258982A1
US20040258982A1 US10/709,253 US70925304A US2004258982A1 US 20040258982 A1 US20040258982 A1 US 20040258982A1 US 70925304 A US70925304 A US 70925304A US 2004258982 A1 US2004258982 A1 US 2004258982A1
Authority
US
United States
Prior art keywords
anode
pellet
battery cell
cathode
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/709,253
Other languages
English (en)
Inventor
Brendan Coffey
Charles Sesock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rechargeable Battery Corp
Original Assignee
Rechargeable Battery Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rechargeable Battery Corp filed Critical Rechargeable Battery Corp
Priority to US10/709,253 priority Critical patent/US20040258982A1/en
Assigned to RECHARGEABLE BATTERY CORPORATION reassignment RECHARGEABLE BATTERY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COFFEY, BRENDAN, SESOCK, CHARLES
Publication of US20040258982A1 publication Critical patent/US20040258982A1/en
Priority to US12/413,036 priority patent/US8133606B2/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0422—Cells or battery with cylindrical casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/24—Alkaline accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/24—Alkaline accumulators
    • H01M10/28—Construction or manufacture
    • H01M10/283—Cells or batteries with two cup-shaped or cylindrical collectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/06—Electrodes for primary cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/24—Electrodes for alkaline accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/244—Zinc electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/26—Processes of manufacture
    • H01M4/30—Pressing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/04—Cells with aqueous electrolyte
    • H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
    • H01M6/08—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with cup-shaped electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/42—Grouping of primary cells into batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/025—Electrodes composed of, or comprising, active material with shapes other than plane or cylindrical
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/043—Processes of manufacture in general involving compressing or compaction
    • H01M4/0433—Molding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/42—Alloys based on zinc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49108—Electric battery cell making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49108—Electric battery cell making
    • Y10T29/49115—Electric battery cell making including coating or impregnating

Definitions

  • the present invention generally relates to electrochemical battery cells, and more particularly to electrochemical pellet-type battery cells that employ electrode assemblies in the form of pellets.
  • electrochemical battery cells employed in a variety of applications and in both rechargeable and disposable platforms.
  • the most popular battery cells for consumer applications include alkaline cells, nickel metal hydride cells, nickel cadmium cells, and lithium ion cells.
  • alkaline batteries based on manganese oxide cathodes are widely used for consumer applications.
  • device power requirements of consumer applications have increased in recent years, alkaline battery producers have sought methods for improving the high drain output of their cells while retaining a simple low cost design and method of assembly. Numerous design strategies have been proposed and implemented to address the requirement of higher capacity utilization at high drain rates.
  • a typical primary disposable or rechargeable alkaline battery cell configuration is shown in the form of a bobbin cell 10 .
  • the cell 10 includes: a cell housing in the form of a steel can 12 defining a cylindrical inner space and interior surface, which can optionally be coated with a conductive coating; a manganese dioxide cathode 14 formed by a plurality of hollow or tubular cylindrical pellets 16 pressed in the can 12 ; a zinc anode 18 made of an anode gel and arranged within the hollow portion of the cylindrical pellets 16 forming the cathode 14 ; and a cylindrical separator 20 separating the anode 18 from the cathode 14 .
  • the ionic conductivity between the anode and the cathode is facilitated by the presence of an electrolyte, such as potassium hydroxide (KOH), which is added into the cell in a predetermined quantity.
  • KOH potassium hydroxide
  • the can 12 is closed at its bottom, and has a central circular pip 22 serving as a positive terminal for the cell.
  • a cell closure assembly hermetically seals a top end of the can 12 .
  • the cell closure assembly comprises a negative cap 24 formed by a thin metal sheet, a current collector nail 26 attached to the negative cap 24 and disposed within the anode 18 to provide electrical contact with the anode 18 , and a plastic top 28 that electrically insulates the negative cap 24 from the can 12 and separates gas spaces formed beyond the cathode and anode structures, respectively.
  • the bottom of the separator 20 is typically sealed by means of a hot-melt bead 34 , which is used to seal the separator 20 to a washer 33 in the cell.
  • a hot-melt bead 34 which is used to seal the separator 20 to a washer 33 in the cell.
  • the washer is omitted and only a hotmelt adhesive is used.
  • a bottom seal cup may be employed without the use of a hot-melt adhesive.
  • FIG. 1 illustrates a viable alkaline battery cell configuration
  • FIG. 1 illustrates a viable alkaline battery cell configuration
  • battery cell configurations having lower costs, more robust design characteristics, and ease of manufacturability while maintaining and continually improving current outputs and other performance parameters. This remains a significant challenge given the current trend of designing consumer electronics with ever increasing power requirements while constantly seeking to reduce product and manufacturing costs to increase profit margins.
  • the present invention provides an improved battery cell that, among other things, addresses these growing needs.
  • the integrated inner/outer electrode pellet configuration of the present invention facilitates lowers costs, a more robust design and ease of manufacturability while maintaining and allowing increased performance characteristics of the battery cell.
  • the present invention provides the advantages of a high surface area electrochemical cell wherein the formation of an integrated inner/outer electrode pellet configuration allows for greater tolerances in positioning and alignment of the electrodes with respect to each other while preserving efficient usage of space within the cell housing or container.
  • the inner electrode comprises a thin and substantially flat structure in a coiled configuration.
  • the inner electrode includes an electrical lead to facilitate electrical communication with the second terminal of the cell housing.
  • the outer electrode is a cathode of positive polarity and the inner electrode is an anode of negative polarity.
  • the cathode is preferably formed largely from manganese dioxide and the anode is preferably formed largely of zinc.
  • the anode comprises a material selected from the group consisting of metallic zinc, zinc alloy, zinc oxide and combinations thereof.
  • the material of the cathode portion consists essentially of MnO 2 ; a conductive powder; and an additive selected from the group consisting of a binder, an electrolyte, a recombination catalyst, and combinations thereof.
  • a method of manufacturing a pellet for use with a battery cell comprises the steps of forming an inner electrode; applying a separator to the inner electrode; embedding the inner electrode into an outer electrode material formulation; and forming the outer electrode material formulation to geometrically define the pellet.
  • One particular embodiment of a method of manufacturing an electrochemical battery cell comprises the steps of forming a battery cell casing including a first terminal and a second terminal; forming an inner electrode; applying a separator to the inner electrode; embedding the inner electrode into an outer electrode material formulation; forming the outer electrode material formulation to geometrically define a pellet; connecting the inner electrode to the second terminal; and disposing the pellet into the battery cell casing such that the outer electrode material formulation is in communication with the first terminal.
  • Yet another embodiment of a method of manufacturing an electrochemical battery cell comprises the steps of: (A) forming a battery cell casing including a first terminal and a second terminal; (B) forming a plurality of pellets, each pellet formed by forming an inner electrode; applying a separator to the inner electrode; embedding the inner electrode into an outer electrode material formulation; and forming the outer electrode material formulation to geometrically define the pellet; (C) connecting each of the inner electrodes to one of either the second terminal or another inner electrode; and (D) disposing the pellets into the battery cell casing such that the outer electrode material formulation of each of the pellets is in communication with the first terminal.
  • FIG. 1 is a cross-sectional view of a typical cylindrical battery bobbin cell as known in the prior art.
  • FIG. 2A is a cross-sectional view of a cylindrical battery cell incorporating a first embodiment of a pellet in accordance with the principles of the present invention.
  • FIG. 2C is a cross-sectional elevational view of the pellet of FIG. 2B.
  • FIG. 3 is a schematic cross-sectional plan view of a second embodiment of a pellet for use with a battery cell in accordance with the principles of the present invention, wherein a current collector has been added.
  • the present invention facilitates integration of an inner electrode, preferably an anode, and an outer electrode, preferably a cathode, into a single pellet configuration for use with an electrochemical battery cell in any type of format utilizing one or more electrode pellets.
  • the pellet configuration can be utilized in any number of battery cell electrochemistry formats, such as, for example, nickel metal hydride (NiMH), lithium ion (Li-ion), nickel cadmium (NiCd), and alkaline cells. Further, the pellet configuration is applicable to any type of battery cell format utilizing one or more pellets, such as, for example, bobbin type cylindrical cells, coin cells or flat plate cells.
  • the integration of the electrodes in accordance with the principles of the present invention does not adversely affect the performance characteristics of the battery cell.
  • one particular characterization of the present invention comprises an electrochemical battery cell 50 having a cell housing 52 defining an inner space 54 , a first terminal in the form of a positive terminal 56 and a second terminal in the form of a negative terminal 58 .
  • the terminals 56 and 58 can be integrally formed with the housing 52 or connected thereto as a separate component as part of the housing, such as a cap. Further, depending on the particular embodiment, the polarity of each of the terminals 56 and 58 is not limited to one of either a positive or negative polarity.
  • the battery cell 50 includes at least one pre-formed pellet 60 disposed within the inner space 54 of the cell housing 52 .
  • the pellet 60 includes an outer electrode in the form of a cathode portion 62 , which is formed from a cathode material formulation that, when formed, geometrically defines the pellet.
  • the material formulation can be of any type typically utilized to form cathode pellets and known in the art.
  • the material formulation of the cathode portion consists essentially of electrolytic MnO 2 (EMD), a conductive powder, and one or more additives, such as, for example, a binder, an electrolyte, a recombination catalyst, or one or more combinations thereof.
  • the pellet 60 also includes an inner electrode in the form of an anode 64 embedded within the cathode portion 62 .
  • each of the anodes 64 is either in direct electrical contact with another anode 64 or the negative terminal 58 of the battery cell 50 . Electrical connection of the anodes 64 is facilitated by an electrical lead 64 a, such as a wire, tab, terminal, extension of the anode, or the like.
  • the pellets 60 include a thru-hole 65 to facilitate electrical connections between the anodes 64 of the pellets 60 . Other electrical connection schemes known in the art are contemplated as well.
  • the anode 64 Prior to formation of the cathode portion 62 from the cathode material, the anode 64 is embedded within the material. Formation of the cathode portion 62 may be facilitated by a number of formation techniques and means, such as, for example, compression formation, molding, casting, extruding, or the like. As shown in the embodiment depicted in FIG. 2B, the anode 64 is a thin and substantially flat or plate-like structure in a coiled configuration. However, other types of configurations or shapes may be utilized, particularly configurations that maximize surface area of the anode 64 .
  • the anode 64 is encapsulated by a separator 66 .
  • the separator 66 comprises a laminated or composite material typically used as a separator material.
  • the separator 66 comprises a combination of an absorbent fibrous sheet material wettable by an electrolyte and an insulating material that is impermeable to small particles while being permeable to ions.
  • the absorbent material is preferably a macro-porous structure, such as a non-woven polyamide. Shorting is prevented by the insulating material, which may comprise one or more layers of a micro-porous or non-porous material laminated to or coated onto the absorbent fibrous sheet material.
  • the insulating material may comprise one or more cellophane membranes laminated onto a non-woven polyamide sheet.
  • Another example of an insulating material is one or more coatings of regenerated cellulose or viscose coated onto and partially impregnating the non-woven polyamide sheet, resulting in a composite material.
  • Another suitable coating comprises a polymeric material such as sulfonated polyphenylene oxide and its derivatives.
  • One or more layers of the laminated or composite material are preferably wound or coiled to form a spiral-like or coiled structure as shown in the figures.
  • a coiled current collector 70 may be embedded into the cathode portion of the pellet, as shown in FIG. 3.
  • the current collector 70 facilitates additional current collection for the cathode portion 62 .
  • the current collector 70 is a nickel mesh-like material and is incorporated into the cathode portion 62 of the pellet 60 .
  • a method of manufacturing a pellet for use in an electrochemical battery cell comprises the steps of: (A) forming an inner electrode, such as an anode, preferably in a configuration having a large surface area; (B) applying a separator to the inner electrode; (C) embedding the inner electrode into an outer electrode material formulation, such as a cathode material formulation; and (D) forming the outer electrode material formulation to geometrically define the pellet.
  • a method of manufacturing an electrochemical battery cell utilizing at least one pellet comprises the steps of: (A) forming a battery cell casing including a first terminal, preferably of positive polarity, and a second terminal, preferably of negative polarity; (B) forming an inner electrode, preferably an anode and in a configuration having a large surface area; (C) applying a separator to the inner electrode; (D) embedding the inner electrode into an outer electrode material formulation, preferably a cathode material formulation; (E) forming the outer electrode material formulation to geometrically define a pellet; (F) connecting the inner electrode to the second terminal; and (G) disposing the pellet into the battery cell casing such that the outer electrode material formulation is in communication with the first terminal.
  • Yet another embodiment of a method of manufacturing an electrochemical battery cell in accordance with the principles of the present invention comprises the steps of: (A) forming a battery cell casing including a first terminal, preferably a positive terminal, and a second terminal, preferably a negative terminal; (B) forming a plurality of pellets, each pellet formed by: forming an inner electrode, preferably an anode in a configuration having a large surface area; applying a separator to the inner electrode; embedding the inner electrode into an outer electrode material formulation, preferably a cathode material formulation; and forming the outer electrode material formulation to geometrically define the pellet; (C) connecting each of the inner electrodes to one of either the second terminal or another inner electrode; and (D) disposing the pellets into the battery cell casing such that the outer electrode material formulation of each of the pellets is in communication with the first terminal.
  • the step of forming the inner electrode may comprise coiling the inner electrode into a spiral-like configuration; the step of forming the outer electrode material formulation may comprise molding the material formulation to geometrically define the pellet; the step of applying the separator to the inner electrode may comprise coating the inner electrode with an adherent and flexible microporous separator material; or the step of forming the outer electrode material formulation may comprise compression-forming the material formulation to geometrically define the pellet.
  • each alkaline cell contains three cathode/anode pellets, such as the three pellets 60 shown in the cell 50 in FIG. 2A.
  • the outer electrode material portion of each pellet which in this example is a cathode material portion, is approximately 3.4 g.
  • the cathode material formulation is a Type I formulation typical of primary alkaline cells and consists of 88 wt % EMD (MnO 2 ), 7.5 wt % conductive powder, and the remainder being other additives such as binders, electrolyte, and recombination catalyst.
  • the components of the cathode material formulation are blended and an inner electrode in the form of an anode is embedded therein.
  • the material formulation is then pressed into a pellet geometry.
  • Sufficient zinc weight (approx. 1 g) should be present in the anode to match the cathode capacity per pellet.
  • the anode is pre-formed, preferably with a solid density of 4-5 g/cm3 of dry thin flexible charge zinc structures coated onto an absorber and/or a thin flexible metal mesh current collector.
  • Suitable formulation ingredients for the anode include Zn powder in a range of particle sizes, a composite including Zn fibers to give good electrical conductivity throughout the composite, polymers such as ground KC32 or other absorber material, nylon, PP, or Kraton®.
  • Suitable processing methods for the anode formulation include pasting, melt processing, roll milling, pasting impregnated absorber or expanded metal such as Exmet®, pressing the formulation onto the absorber or expanded metal. Pressing dry Pgel-Size should be about 80% of pellet height, length 1.5 2 inches and thickness 30-60 mils. Anodes should be semi-solid, rigid to hold their shape once formed, but not so brittle that they crack on bending or compressing. Dimensions should be reasonably controlled but anodes should absorb electrolyte with moderate swelling. An insulated wire can be attached to the metal substrate in the anode to facilitate electrical connections.
  • an electrical lead integrally formed with the anode and allowed to extend outwardly during formation of the pellet may also be devised, such as, for example, an electrical lead integrally formed with the anode and allowed to extend outwardly during formation of the pellet.
  • the formed anode is encapsulated by a separator coating before being embedded in the pellet.
  • the separator coating in this example is “starch,” which could further include suspended TiO2 powder.
  • the anode is preferably dried after coating.
  • the anode may be wrapped with a flexible separator material made from polytetrafluoroethylene (PTFE), such as that manufactured by W.L. Gore and Associates, Inc. under the trade name Excellerator®, or other suitable separator materials, such as separators manufactured by Advanced Membrane Systems, Inc under the trade name FASTM, or the like.
  • PTFE polytetrafluoroethylene
  • the anode is preferably loosely coiled in a spiral-like configuration and embedded in the cathode material formulation in such a way as to ensure that there is not excessive deformation of the anode coil and shorting during forming of the cathode material into the pellet form.
  • a cathode current collector may optionally be embedded alongside the coiled anode or integrated therewith so as to be embedded by virtue of the anode being embedded.
  • Cells of each of the various types may be subjected to a cyclic electrical test regimen consisting of discharge at 1 Amp to 1 volt, and in the case of rechargeable forms of cells, followed by taper charging at 1.75 Volts for 12 hours with a 500 mA current limit.
  • an alkaline manganese dioxide cell incorporating a relatively high surface area anode structure is embedded within the cathode material of the cathode portion when it is formed to geometrically define the pellet.
  • the anode structure is flexible so that it may be coiled within the pellet mold prior to pressing and may be deformed during pressing without breaking.
  • the anode structure consists of a composite mixture of zinc powder and or fiber, polymer binders, absorbers and other additives overlaying a thin metal foil or mesh current collector, which may be copper or brass.
  • the anode structure is coated with a separator layer that is also flexible so that it does not crack or tear away from the anode surface in the pellet molding process.
  • the separator coating is suitably microporous to allow good ion transport between the anode and cathode while not permitting short circuit contact between the two electrodes either before or subsequent to the pressing operation.
  • a parallel cathode current collector may also be embedded in the pellet to improve electron transfer to the cathode.
  • a wire, lead, or tab connection can be bonded to the anode structure prior to pellet formation and brought outside the pellet during or after formation. The wire, lead or tab connection facilitates connection to the negative contact of the can or cell housing.
  • an alkaline manganese dioxide-zinc cell comprising a manganese dioxide cathode, a zinc anode, a separator between the anode and cathode, and an aqueous alkaline potassium hydroxide electrolyte.
  • the anode comprises a zinc component, an absorber, a polymer and other additives formed into a high surface area form and coated with a well adherent and flexible microporous separator.
  • the anode is coiled and placed into a pellet mold wherein the cathode material formulation is added as a powder and the entire mass pressed into a pellet.
  • the pellet can then be disposed in a cell housing or casing, such as a can of the typical bobbin type cylindrical cell. If necessary, leads or wires are brought out from the anode structure and connected to the negative can terminal. Additional electrolyte may be added and the anode may undergo some volume changes. However throughout these processing steps the separator coating retains a suitable microporous characteristic to prevent zinc dendrites and shorting between the anode and the cathode.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Primary Cells (AREA)
  • Secondary Cells (AREA)
US10/709,253 2003-04-23 2004-04-23 Battery employing an electrode pellet having an inner electrode embedded therein Abandoned US20040258982A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/709,253 US20040258982A1 (en) 2003-04-23 2004-04-23 Battery employing an electrode pellet having an inner electrode embedded therein
US12/413,036 US8133606B2 (en) 2003-04-23 2009-03-27 Battery employing an electrode pellet having an inner electrode embedded therein

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46469803P 2003-04-23 2003-04-23
US10/709,253 US20040258982A1 (en) 2003-04-23 2004-04-23 Battery employing an electrode pellet having an inner electrode embedded therein

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/413,036 Division US8133606B2 (en) 2003-04-23 2009-03-27 Battery employing an electrode pellet having an inner electrode embedded therein

Publications (1)

Publication Number Publication Date
US20040258982A1 true US20040258982A1 (en) 2004-12-23

Family

ID=33310937

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/709,253 Abandoned US20040258982A1 (en) 2003-04-23 2004-04-23 Battery employing an electrode pellet having an inner electrode embedded therein
US12/413,036 Expired - Fee Related US8133606B2 (en) 2003-04-23 2009-03-27 Battery employing an electrode pellet having an inner electrode embedded therein

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/413,036 Expired - Fee Related US8133606B2 (en) 2003-04-23 2009-03-27 Battery employing an electrode pellet having an inner electrode embedded therein

Country Status (5)

Country Link
US (2) US20040258982A1 (de)
EP (1) EP1632003A4 (de)
JP (1) JP2006524901A (de)
CA (1) CA2523120A1 (de)
WO (1) WO2004095606A2 (de)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060035140A1 (en) * 2003-02-20 2006-02-16 Kenji Matsumoto Accumulator cell assembly
US20070252556A1 (en) * 2006-04-27 2007-11-01 Dorian West System and method for interconnection of battery packs
US20080268341A1 (en) * 2007-03-14 2008-10-30 Teck Cominco Metals Ltd. High power batteries and electrochemical cells and methods of making same
US20120058376A1 (en) * 2010-02-01 2012-03-08 Lg Chem, Ltd. Cable-type secondary battery
WO2015120303A1 (en) * 2014-02-06 2015-08-13 Cardiac Pacemakers, Inc. Battery for use with medical devices
CN105390725A (zh) * 2014-08-21 2016-03-09 庄臣及庄臣视力保护公司 用于生物相容性电池的粒料形式阴极
US9343773B2 (en) 2010-02-01 2016-05-17 Lg Chem, Ltd. Cable-type secondary battery
US9577259B2 (en) 2014-08-21 2017-02-21 Johnson & Johnson Vision Care, Inc. Cathode mixture for use in a biocompatible battery
US9599842B2 (en) 2014-08-21 2017-03-21 Johnson & Johnson Vision Care, Inc. Device and methods for sealing and encapsulation for biocompatible energization elements
US9715130B2 (en) 2014-08-21 2017-07-25 Johnson & Johnson Vision Care, Inc. Methods and apparatus to form separators for biocompatible energization elements for biomedical devices
US9746695B2 (en) 2014-08-21 2017-08-29 Johnson & Johnson Vision Care, Inc. Methods and apparatus to form biocompatible energization primary elements for biomedical devices
US9899700B2 (en) 2014-08-21 2018-02-20 Johnson & Johnson Vision Care, Inc. Methods to form biocompatible energization elements for biomedical devices comprising laminates and deposited separators
US9923177B2 (en) 2014-08-21 2018-03-20 Johnson & Johnson Vision Care, Inc. Biocompatibility of biomedical energization elements
US9941547B2 (en) 2014-08-21 2018-04-10 Johnson & Johnson Vision Care, Inc. Biomedical energization elements with polymer electrolytes and cavity structures
US10345620B2 (en) 2016-02-18 2019-07-09 Johnson & Johnson Vision Care, Inc. Methods and apparatus to form biocompatible energization elements incorporating fuel cells for biomedical devices
US10361405B2 (en) 2014-08-21 2019-07-23 Johnson & Johnson Vision Care, Inc. Biomedical energization elements with polymer electrolytes
US10361404B2 (en) 2014-08-21 2019-07-23 Johnson & Johnson Vision Care, Inc. Anodes for use in biocompatible energization elements
US10361469B2 (en) * 2014-05-29 2019-07-23 Lg Chem, Ltd. Battery module having water-cooled type cooling structure
US10381687B2 (en) 2014-08-21 2019-08-13 Johnson & Johnson Vision Care, Inc. Methods of forming biocompatible rechargable energization elements for biomedical devices
US10451897B2 (en) 2011-03-18 2019-10-22 Johnson & Johnson Vision Care, Inc. Components with multiple energization elements for biomedical devices
US10627651B2 (en) 2014-08-21 2020-04-21 Johnson & Johnson Vision Care, Inc. Methods and apparatus to form biocompatible energization primary elements for biomedical devices with electroless sealing layers
US10775644B2 (en) 2012-01-26 2020-09-15 Johnson & Johnson Vision Care, Inc. Ophthalmic lens assembly having an integrated antenna structure
US11552305B2 (en) 2019-06-27 2023-01-10 Energizer Brands, Llc Electrochemical cell with improved high-rate discharge performance

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100068609A1 (en) * 2008-09-15 2010-03-18 Ultralife Corportion Hybrid cell construction for improved performance
US11865036B2 (en) 2019-09-27 2024-01-09 L'oreal Integrated heater on facial skincare mask

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US808755A (en) * 1904-02-27 1906-01-02 Rock Island Battery Company Electrical battery.
US1631528A (en) * 1924-01-23 1927-06-07 Nat Carbon Co Inc Dry cell
US2436382A (en) * 1943-07-17 1948-02-24 Deibel Dry cell battery of the flat type
US2970180A (en) * 1959-06-17 1961-01-31 Union Carbide Corp Alkaline deferred action cell
US4585715A (en) * 1984-06-29 1986-04-29 Union Carbide Corporation Metal cathode collector having a protective surface layer of a metal oxide
US6060197A (en) * 1998-01-06 2000-05-09 Ceramtec, Inc. Zinc based electrochemical cell
US6472099B1 (en) * 2000-06-13 2002-10-29 The Gillette Company Cathode indentations in alkaline cell
US6586907B1 (en) * 2000-04-28 2003-07-01 Matsushita Electric Industrial Co., Ltd. Cell tube and method of manufacturing the cell tube

Family Cites Families (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE232802C (de) *
GB232802A (en) * 1924-05-27 1925-04-30 Manhattan Electrical Supply Co Improvements in or relating to electric batteries
BE518998A (de) * 1952-04-05
US4029855A (en) 1975-12-10 1977-06-14 Globe-Union Inc. Storage battery and method of making the same
US4011103A (en) 1976-03-29 1977-03-08 Union Carbide Corporation Cathode contact member for alkaline round cells
CA1096443A (en) * 1978-10-20 1981-02-24 Her Majesty The Queen, In Right Of Canada, As Represented By The Minister Of National Defence Expanded zinc electrode for dry cells
US4215186A (en) 1979-02-26 1980-07-29 Jaeger Ben E Battery plate separator and battery containing the same
US4292357A (en) 1979-07-25 1981-09-29 Eagle-Picher Industries, Inc. Zinc/zinc oxide laminated anode assembly
US4287273A (en) * 1980-04-03 1981-09-01 Catalyst Research Corporation Plural cell battery structure
US4327163A (en) 1980-11-14 1982-04-27 General Motors Corporation Half-envelope separator assemblies on individual plates
US4396691A (en) 1981-12-18 1983-08-02 General Motors Corporation Battery having separator sheathed/supported plates
US4668320A (en) 1984-03-30 1987-05-26 Union Carbide Corporation Method of making a coiled electrode assembly
US4761352A (en) 1985-05-17 1988-08-02 Eastman Kodak Company Accordian folded electrode assembly
US4663253A (en) 1985-06-24 1987-05-05 Fremont Special Machine Company, Inc. Wrapper and wrapper blank for battery plates
US4680242A (en) 1985-06-24 1987-07-14 Fremont Special Machine Company, Inc. Wrapped battery plate
DE3622492C2 (de) 1986-07-02 1996-07-18 Hagen Batterie Ag Bleiakkumulator, dessen positive Elektrodenplatten in nach oben offene Separatortaschen eingetascht sind
US4957826A (en) 1989-04-25 1990-09-18 Dreisbach Electromotive, Inc. Rechargeable metal-air battery
US5004655A (en) 1989-12-14 1991-04-02 Globe-Union Inc. Thin bipolar lead-acid battery with individual cell vent
US5075183A (en) 1990-04-18 1991-12-24 Shin-Kobe Electric Machinery Co., Ltd. Lead acid storage battery
CA2042322A1 (en) 1990-05-16 1991-11-17 Roger J. Bones Electrochemical cells
US5209993A (en) 1990-08-24 1993-05-11 General Motors Corporation Method of enveloping battery plates
US5147737A (en) 1991-05-07 1992-09-15 Wilson Greatbatch Ltd. Electrochemical cell with improved efficiency serpentine electrode
CA2073575A1 (en) 1991-07-19 1993-01-20 Paul C. Koehler Pleated metal article
JP2559284Y2 (ja) 1991-11-06 1998-01-14 古河電池株式会社 蓄電池極板用袋状セパレータ
JP3277413B2 (ja) 1993-08-17 2002-04-22 ソニー株式会社 角形バッテリー
US5384211A (en) 1993-09-27 1995-01-24 W. R. Grace & Co.-Conn. Oxidation resistant enveloped separator
JP2603141Y2 (ja) 1993-11-30 2000-02-28 古河電池株式会社 鉛蓄電池用袋状セパレータ並びに鉛蓄電池
US5626989A (en) 1994-11-22 1997-05-06 Long Island Lighting Company Quasi-solid plate storage battery
JPH08203539A (ja) 1994-12-13 1996-08-09 Pioneer Electron Corp 積層型電池
US5563007A (en) 1995-01-11 1996-10-08 Entek Manufacturing Inc. Method of enveloping and assembling battery plates and product produced thereby
US5643391A (en) * 1995-01-13 1997-07-01 Hunt Holdings, Inc. Method and apparatus for an improved roller system for calendar machines
US5569551A (en) 1995-04-24 1996-10-29 Aer Energy Resources Inc. Dual air elecrtrode cell
US5616434A (en) 1995-07-14 1997-04-01 Exide Corporation Battery plate separator envelope and method of forming battery plate assemblies including the same
US5558952A (en) 1995-12-15 1996-09-24 East Penn Mfg. Co. Pocket separator for electric storage battery plates
US5677080A (en) 1996-04-15 1997-10-14 Delta Green Energy, Inc. Battery structure with single-body inserting and receiving electrodes
JP3374665B2 (ja) 1996-07-23 2003-02-10 松下電器産業株式会社 密閉型鉛蓄電池
US5935724A (en) 1997-04-04 1999-08-10 Wilson Greatbatch Ltd. Electrochemical cell having multiplate electrodes with differing discharge rate regions
US6677077B2 (en) 1997-04-04 2004-01-13 Wilson Greatbatch Ltd. Electrochemical cell having multiplate electrodes with differing discharge rate regions
US6521378B2 (en) 1997-08-01 2003-02-18 Duracell Inc. Electrode having multi-modal distribution of zinc-based particles
US6001503A (en) 1997-08-26 1999-12-14 General Motors Corporation Battery separator having a puncture-proof border
US5948561A (en) 1997-11-12 1999-09-07 Eveready Battery Company, Inc. Electrochemical cell and method of assembly
US5958088A (en) 1998-03-04 1999-09-28 Duracell, Inc. Prismatic cell construction
US6074781A (en) 1998-06-26 2000-06-13 Eveready Battery Company, Inc. Electrochemical cell having increased anode-to-cathode interface area
US6037077A (en) 1998-07-08 2000-03-14 Wilson Greatbatch Ltd. Electrode assembly for high energy devices
US6153335A (en) 1998-09-25 2000-11-28 Douglas Battery Manufacturing Company Battery cell construction including fiberous mat separator
US20010009735A1 (en) 2001-03-09 2001-07-26 Yang De Qian Metal-gas cell battery with soft pocket
US6207322B1 (en) 1998-11-16 2001-03-27 Duracell Inc Alkaline cell with semisolid cathode
US6326102B1 (en) 1998-11-24 2001-12-04 Eveready Battery Company, Inc. High rate electrochemical cell with increased anode-to-cathode interface surface area
AU4024800A (en) 1999-03-29 2000-10-16 Gillette Company, The Alkaline cell with improved separator
US6261717B1 (en) 1999-05-28 2001-07-17 The Gillette Company Battery having an electrode within another electrode
US6410187B1 (en) 1999-09-09 2002-06-25 The Gillette Company Primary alkaline battery
US6451486B1 (en) 2000-05-01 2002-09-17 The Gillette Company Battery cathode including a mixture of manganese dioxide with carbon particles of expanded and non-expanded graphite
DE10028084C1 (de) 2000-06-07 2001-12-06 Daramic Inc Ärmelseparator und Vorrichtung zu dessen Herstellung
US6482543B1 (en) 2000-06-13 2002-11-19 The Gillette Company Alkaline cell with improved cathode and current collector configuration
US6541140B1 (en) 2000-08-07 2003-04-01 Wilson Greatbatch Technologies, Inc. Electrochemical lithium ion secondary cell having multiplate electrodes with differing discharge rate regions
US20020106557A1 (en) 2000-09-19 2002-08-08 Graeme Fraser-Bell Separator assembly for use in a recombinant battery
US6740446B2 (en) 2001-02-28 2004-05-25 Ovonic Battery Company, Inc. Electrochemical cell with zigzag electrodes
US6630262B2 (en) 2001-03-09 2003-10-07 De-Qian Yang Metal-gas cell battery with soft pocket
US20030186117A1 (en) 2002-03-27 2003-10-02 Ntk Powerdex, Inc. Primary lithium battery and method of forming the same
US6869727B2 (en) 2002-09-20 2005-03-22 Eveready Battery Company, Inc. Battery with high electrode interfacial surface area

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US808755A (en) * 1904-02-27 1906-01-02 Rock Island Battery Company Electrical battery.
US1631528A (en) * 1924-01-23 1927-06-07 Nat Carbon Co Inc Dry cell
US2436382A (en) * 1943-07-17 1948-02-24 Deibel Dry cell battery of the flat type
US2970180A (en) * 1959-06-17 1961-01-31 Union Carbide Corp Alkaline deferred action cell
US4585715A (en) * 1984-06-29 1986-04-29 Union Carbide Corporation Metal cathode collector having a protective surface layer of a metal oxide
US6060197A (en) * 1998-01-06 2000-05-09 Ceramtec, Inc. Zinc based electrochemical cell
US6586907B1 (en) * 2000-04-28 2003-07-01 Matsushita Electric Industrial Co., Ltd. Cell tube and method of manufacturing the cell tube
US6472099B1 (en) * 2000-06-13 2002-10-29 The Gillette Company Cathode indentations in alkaline cell

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060035140A1 (en) * 2003-02-20 2006-02-16 Kenji Matsumoto Accumulator cell assembly
US7462418B2 (en) * 2003-02-20 2008-12-09 Honda Motor Co., Ltd. Accumulator cell assembly
US20070252556A1 (en) * 2006-04-27 2007-11-01 Dorian West System and method for interconnection of battery packs
US7667432B2 (en) * 2006-04-27 2010-02-23 Tesla Motors, Inc. Method for interconnection of battery packs and battery assembly containing interconnected battery packs
US7956574B1 (en) 2006-04-27 2011-06-07 Tesla Motors, Inc. System and method for interconnection of battery packs
US20080268341A1 (en) * 2007-03-14 2008-10-30 Teck Cominco Metals Ltd. High power batteries and electrochemical cells and methods of making same
US20120058376A1 (en) * 2010-02-01 2012-03-08 Lg Chem, Ltd. Cable-type secondary battery
US9236629B2 (en) * 2010-02-01 2016-01-12 Lg Chem, Ltd. Cable-type secondary battery
US9343773B2 (en) 2010-02-01 2016-05-17 Lg Chem, Ltd. Cable-type secondary battery
US10451897B2 (en) 2011-03-18 2019-10-22 Johnson & Johnson Vision Care, Inc. Components with multiple energization elements for biomedical devices
US10775644B2 (en) 2012-01-26 2020-09-15 Johnson & Johnson Vision Care, Inc. Ophthalmic lens assembly having an integrated antenna structure
WO2015120303A1 (en) * 2014-02-06 2015-08-13 Cardiac Pacemakers, Inc. Battery for use with medical devices
US9381369B2 (en) 2014-02-06 2016-07-05 Cardiac Pacemakers, Inc. Battery for use with medical devices
US10361469B2 (en) * 2014-05-29 2019-07-23 Lg Chem, Ltd. Battery module having water-cooled type cooling structure
US9923177B2 (en) 2014-08-21 2018-03-20 Johnson & Johnson Vision Care, Inc. Biocompatibility of biomedical energization elements
US10367233B2 (en) 2014-08-21 2019-07-30 Johnson & Johnson Vision Care, Inc. Biomedical energization elements with polymer electrolytes and cavity structures
US9746695B2 (en) 2014-08-21 2017-08-29 Johnson & Johnson Vision Care, Inc. Methods and apparatus to form biocompatible energization primary elements for biomedical devices
US9793536B2 (en) 2014-08-21 2017-10-17 Johnson & Johnson Vision Care, Inc. Pellet form cathode for use in a biocompatible battery
US9864213B2 (en) 2014-08-21 2018-01-09 Johnson & Johnson Vision Care, Inc. Methods and apparatus to form separators for biocompatible energization elements for biomedical devices
US9899700B2 (en) 2014-08-21 2018-02-20 Johnson & Johnson Vision Care, Inc. Methods to form biocompatible energization elements for biomedical devices comprising laminates and deposited separators
US9599842B2 (en) 2014-08-21 2017-03-21 Johnson & Johnson Vision Care, Inc. Device and methods for sealing and encapsulation for biocompatible energization elements
US9941547B2 (en) 2014-08-21 2018-04-10 Johnson & Johnson Vision Care, Inc. Biomedical energization elements with polymer electrolytes and cavity structures
US9946092B2 (en) 2014-08-21 2018-04-17 Johnson & Johnson Vision Care, Inc. Methods for manufacturing biocompatible cathode slurry for use in biocompatible batteries
CN105390725A (zh) * 2014-08-21 2016-03-09 庄臣及庄臣视力保护公司 用于生物相容性电池的粒料形式阴极
US10361405B2 (en) 2014-08-21 2019-07-23 Johnson & Johnson Vision Care, Inc. Biomedical energization elements with polymer electrolytes
US10361404B2 (en) 2014-08-21 2019-07-23 Johnson & Johnson Vision Care, Inc. Anodes for use in biocompatible energization elements
US9577259B2 (en) 2014-08-21 2017-02-21 Johnson & Johnson Vision Care, Inc. Cathode mixture for use in a biocompatible battery
US9715130B2 (en) 2014-08-21 2017-07-25 Johnson & Johnson Vision Care, Inc. Methods and apparatus to form separators for biocompatible energization elements for biomedical devices
US10374216B2 (en) 2014-08-21 2019-08-06 Johnson & Johnson Vision Care, Inc. Pellet form cathode for use in a biocompatible battery
US10381687B2 (en) 2014-08-21 2019-08-13 Johnson & Johnson Vision Care, Inc. Methods of forming biocompatible rechargable energization elements for biomedical devices
US10386656B2 (en) 2014-08-21 2019-08-20 Johnson & Johnson Vision Care, Inc. Methods and apparatus to form separators for biocompatible energization elements for biomedical devices
EP2988357A3 (de) * 2014-08-21 2016-06-15 Johnson & Johnson Vision Care Inc. Pelletförmige kathode zur verwendung in einer biokompatiblen batterie
US10558062B2 (en) 2014-08-21 2020-02-11 Johnson & Johnson Vision Care, Inc. Methods and apparatus to form biocompatible energization primary elements for biomedical device
US10598958B2 (en) 2014-08-21 2020-03-24 Johnson & Johnson Vision Care, Inc. Device and methods for sealing and encapsulation for biocompatible energization elements
US10627651B2 (en) 2014-08-21 2020-04-21 Johnson & Johnson Vision Care, Inc. Methods and apparatus to form biocompatible energization primary elements for biomedical devices with electroless sealing layers
US10345620B2 (en) 2016-02-18 2019-07-09 Johnson & Johnson Vision Care, Inc. Methods and apparatus to form biocompatible energization elements incorporating fuel cells for biomedical devices
US11552305B2 (en) 2019-06-27 2023-01-10 Energizer Brands, Llc Electrochemical cell with improved high-rate discharge performance
US11552304B2 (en) * 2019-06-27 2023-01-10 Energizer Brands, Llc Electrochemical cell with improved high-rate discharge performance
US20230108519A1 (en) * 2019-06-27 2023-04-06 Energizer Brands, Llc Electrochemical cell with improved high-rate discharge performance
US11936073B2 (en) * 2019-06-27 2024-03-19 Energizer Brands, Llc Electrochemical cell with improved high-rate discharge performance

Also Published As

Publication number Publication date
EP1632003A4 (de) 2009-03-18
US20090229115A1 (en) 2009-09-17
US8133606B2 (en) 2012-03-13
JP2006524901A (ja) 2006-11-02
EP1632003A2 (de) 2006-03-08
CA2523120A1 (en) 2004-11-04
WO2004095606A2 (en) 2004-11-04
WO2004095606A3 (en) 2005-01-20

Similar Documents

Publication Publication Date Title
US8133606B2 (en) Battery employing an electrode pellet having an inner electrode embedded therein
CA1099334A (en) Rechargeable alkaline mn02 zinc cell
US20120297611A1 (en) Nickel-zinc battery and manufacturing method thereof
US7754386B2 (en) Rechargeable alkaline manganese cell having reduced capacity fade and improved cycle life
JP2013507752A (ja) 陽性の缶を有する円筒形ニッケル─亜鉛セル
US9306206B2 (en) Alkaline cell having increased interfacial area
US20130171482A1 (en) Nickel-zinc rechargeable pencil battery
JP4485527B2 (ja) 改善したパワー特性を有するバッテリセル及びその製造方法
US11936073B2 (en) Electrochemical cell with improved high-rate discharge performance
EP1218957A1 (de) Aufladbare nickel-zink zellen
US11588158B2 (en) Electrochemical cell with electrode filled protrusion
JP4749333B2 (ja) 改善したパワー特性を有するバッテリセル及びその製造方法
US20220149356A1 (en) Electrode for rechargeable energy storage device
CN1407647A (zh) 密闭型电池
WO2013119422A1 (en) Nickel-zinc rechargeable pencil battery
JP4129965B2 (ja) 非水電解液電池
JP2001068121A (ja) 円筒形アルカリ電池
CA2455548A1 (en) Alkaline manganese dioxide cell with improved open circuit voltage

Legal Events

Date Code Title Description
AS Assignment

Owner name: RECHARGEABLE BATTERY CORPORATION, TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:COFFEY, BRENDAN;SESOCK, CHARLES;REEL/FRAME:015730/0722

Effective date: 20040728

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION