GB1113942A - Improvements in or relating to primary cells - Google Patents

Improvements in or relating to primary cells

Info

Publication number
GB1113942A
GB1113942A GB22177/65A GB2217765A GB1113942A GB 1113942 A GB1113942 A GB 1113942A GB 22177/65 A GB22177/65 A GB 22177/65A GB 2217765 A GB2217765 A GB 2217765A GB 1113942 A GB1113942 A GB 1113942A
Authority
GB
United Kingdom
Prior art keywords
depolarizer
mixture
primary cell
formaldehyde
benzene
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.)
Expired
Application number
GB22177/65A
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.)
FOERDERUNG DER FORSCHUNG DER E
Original Assignee
FOERDERUNG DER FORSCHUNG DER E
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 FOERDERUNG DER FORSCHUNG DER E filed Critical FOERDERUNG DER FORSCHUNG DER E
Publication of GB1113942A publication Critical patent/GB1113942A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/443—Particulate material
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • 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
    • H01M6/12—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with flat electrodes
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/44—Fibrous material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Primary Cells (AREA)
  • Cell Separators (AREA)

Abstract

1,113,942. Primary cell depolarizer mixture. GESELLSCHAFT ZUR FORDERUNG DER FORSCHUNG DER EIDGENOSSISCHEN TECHNISCHEN HOCHSCHULE. 25 May, 1965 [26 May, 1964], No. 22177/65. Heading H1B. A depolarizer body for a primary cell is prepared by precipitating silver oxide from aqueous silver nitrate solution with aqueous sodium hydroxide, reducing it with formaldehyde to form silver particles of 0À01-0À04 mm. size, washing and drying the powder and mixing 5 weight per cent of it with 95 weight per cent of a mercuric oxide depolarizer mixture in benzene, evaporating the benzene and pressing the mixture into the desired shape. A primary cell contains such a depolarizer body and a porous zinc anode separated by a diaphragm. Zinc having a pore volume over 50% is preferred for the anode. Suitable separators may be prepared by stretching flat over a smooth horizontal plate, e.g. of glass, a thin fleece or fabric of 1000/2000 mesh/square inch, e.g. of cellulose, synthetic fibre, or glass fibre, and impregnating this with a 10% solution of acetyl cellulose in 90/10 methylene dichloride/ethanol, optionally adding plasticizer, e.g. dimethyl phthalate, then drying and saponifying for 50 hours at 90‹ C. in 30% NaOH; alternatively the fabric may be treated with 10% polyvinyl alcohol in water, followed by 10% formaldehyde and 1% HCl in water. In the example the depolarizer mixture comprises 94.2 p.b.w. HgO and 0.8 p.b.w. polystyrene binder.
GB22177/65A 1964-05-26 1965-05-25 Improvements in or relating to primary cells Expired GB1113942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH693164A CH422919A (en) 1964-05-26 1964-05-26 Electrochemical primary cell of high power density and method for manufacturing the cell

Publications (1)

Publication Number Publication Date
GB1113942A true GB1113942A (en) 1968-05-15

Family

ID=4317285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22177/65A Expired GB1113942A (en) 1964-05-26 1965-05-25 Improvements in or relating to primary cells

Country Status (7)

Country Link
BE (1) BE664510A (en)
CH (1) CH422919A (en)
DE (1) DE1596091B2 (en)
FR (1) FR1442613A (en)
GB (1) GB1113942A (en)
NL (1) NL129099C (en)
SE (1) SE326473B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013024666A1 (en) 2011-08-12 2013-02-21 Nec Corporation Communication system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013024666A1 (en) 2011-08-12 2013-02-21 Nec Corporation Communication system

Also Published As

Publication number Publication date
BE664510A (en) 1965-09-16
CH422919A (en) 1966-10-31
NL6506666A (en) 1965-11-29
SE326473B (en) 1970-07-27
NL129099C (en) 1970-07-15
FR1442613A (en) 1966-06-17
DE1596091A1 (en) 1971-03-18
DE1596091B2 (en) 1972-10-05

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