GB1341440A - Cylindrical galvanic primary cell - Google Patents
Cylindrical galvanic primary cellInfo
- Publication number
- GB1341440A GB1341440A GB1129671A GB1129671A GB1341440A GB 1341440 A GB1341440 A GB 1341440A GB 1129671 A GB1129671 A GB 1129671A GB 1129671 A GB1129671 A GB 1129671A GB 1341440 A GB1341440 A GB 1341440A
- Authority
- GB
- United Kingdom
- Prior art keywords
- weight
- zinc
- surface area
- bet
- depolarizer mix
- 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
Links
Classifications
-
- 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
-
- 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
- H01M4/08—Processes of manufacture
- H01M4/10—Processes of manufacture of pressed electrodes with central core, i.e. dollies
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cell Separators (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
1341440 Primary cells VARTA GmbH 26 April 1971 [30 April 1970 (2)] 11296/71 Heading H1B To improve the leak.proof qualities of the zinc can of a Leclanche type cell the depolarizer mix has a greater proportion of water. The proportion of water is in the range above 23% and less than 39% by weight and preferably is within the range 26-33%. A specific depolarizer mix comprises the following ingredients in percentages by weight: 20% of electrolytic manganese pyrolosite dioxide having a BET-surface area of 40 sq. m./g; 30% of artificial manganese having a BET-surface area of 90 sq. m./g.; 9À6% of carbon black having a BET surface area of 130 sq. m./g.; 1À2% of zinc oxide; 10À5% of zinc chloride dissolved in 28À7% of coater. The separator is a fibrous material provided with a swelling agent and is wrapped round a bobbin formed by the depolarizer mix. A specific separator comprises sulphite paper coated with an aqueous suspension of: 4 parts by weight of cross-linked starch; 1 part by weight of methylcellulose; 1 part by weight of zinc oxide. The outside of the zinc can is wrapped with selfadhesive synthetic resin foil. A cardboard sleeve surrounds the foil and the sleeve is surrounded by a steel jacket. The can may be formed by a zinc alloy having 0À04-0À8% by weight of lead and up to 0À08% by weight of cadmium. Ammonium chloride may be added to the zinc chloride electrolyte.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702021286 DE2021286A1 (en) | 1970-04-30 | 1970-04-30 | Cylindrical galvanic primary element |
DE19702021285 DE2021285A1 (en) | 1970-04-30 | 1970-04-30 | Cylindrical galvanic primary element |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1341440A true GB1341440A (en) | 1973-12-19 |
Family
ID=25759064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1129671A Expired GB1341440A (en) | 1970-04-30 | 1971-04-26 | Cylindrical galvanic primary cell |
Country Status (10)
Country | Link |
---|---|
AT (1) | AT303852B (en) |
BE (1) | BE766556A (en) |
CA (1) | CA954186A (en) |
CH (1) | CH534961A (en) |
DE (2) | DE2021285A1 (en) |
DK (1) | DK126535B (en) |
FR (1) | FR2092384A5 (en) |
GB (1) | GB1341440A (en) |
LU (1) | LU62713A1 (en) |
NL (1) | NL7105811A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5128410B2 (en) * | 1971-12-06 | 1976-08-19 | ||
JPS5128411B2 (en) * | 1971-12-10 | 1976-08-19 | ||
DE2331106C2 (en) * | 1973-06-19 | 1984-11-22 | Hitachi Maxell, Ltd., Ibaraki, Osaka | Dry element |
DE19605583A1 (en) * | 1996-02-15 | 1997-08-21 | Bayer Ag | Electrochemical sensors with improved selectivity and increased sensitivity |
-
1970
- 1970-04-30 DE DE19702021285 patent/DE2021285A1/en active Pending
- 1970-04-30 DE DE19702021286 patent/DE2021286A1/en active Pending
-
1971
- 1971-02-26 FR FR7106798A patent/FR2092384A5/fr not_active Expired
- 1971-03-03 LU LU62713D patent/LU62713A1/xx unknown
- 1971-03-08 CH CH335771A patent/CH534961A/en not_active IP Right Cessation
- 1971-03-18 AT AT232671A patent/AT303852B/en not_active IP Right Cessation
- 1971-04-26 GB GB1129671A patent/GB1341440A/en not_active Expired
- 1971-04-28 DK DK204871A patent/DK126535B/en not_active IP Right Cessation
- 1971-04-28 NL NL7105811A patent/NL7105811A/xx unknown
- 1971-04-30 BE BE766556A patent/BE766556A/en not_active IP Right Cessation
- 1971-04-30 CA CA111,838A patent/CA954186A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2092384A5 (en) | 1972-01-21 |
DK126535B (en) | 1973-07-23 |
CH534961A (en) | 1973-03-15 |
DE2021285A1 (en) | 1971-11-11 |
CA954186A (en) | 1974-09-03 |
NL7105811A (en) | 1971-11-02 |
LU62713A1 (en) | 1971-08-20 |
AT303852B (en) | 1972-12-11 |
BE766556A (en) | 1971-09-16 |
DE2021286A1 (en) | 1971-11-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |