GB1259053A - - Google Patents
Info
- Publication number
- GB1259053A GB1259053A GB1745870A GB1259053DA GB1259053A GB 1259053 A GB1259053 A GB 1259053A GB 1745870 A GB1745870 A GB 1745870A GB 1259053D A GB1259053D A GB 1259053DA GB 1259053 A GB1259053 A GB 1259053A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gelling agent
- binder
- vinyl acetate
- blended
- ethylene
- 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
- 239000003349 gelling agent Substances 0.000 abstract 7
- 239000011230 binding agent Substances 0.000 abstract 5
- 239000003792 electrolyte Substances 0.000 abstract 3
- 239000011347 resin Substances 0.000 abstract 3
- 229920005989 resin Polymers 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 229920002472 Starch Polymers 0.000 abstract 2
- 229920001038 ethylene copolymer Polymers 0.000 abstract 2
- 235000013312 flour Nutrition 0.000 abstract 2
- 239000000499 gel Substances 0.000 abstract 2
- 235000019698 starch Nutrition 0.000 abstract 2
- 239000008107 starch Substances 0.000 abstract 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 abstract 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 229920000084 Gum arabic Polymers 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 241000978776 Senegalia senegal Species 0.000 abstract 1
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 abstract 1
- 239000000205 acacia gum Substances 0.000 abstract 1
- 235000010489 acacia gum Nutrition 0.000 abstract 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical group C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 abstract 1
- 239000001768 carboxy methyl cellulose Substances 0.000 abstract 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 abstract 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 abstract 1
- 229940105329 carboxymethylcellulose Drugs 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 abstract 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 229920000609 methyl cellulose Polymers 0.000 abstract 1
- 239000001923 methylcellulose Substances 0.000 abstract 1
- 235000010981 methylcellulose Nutrition 0.000 abstract 1
- 238000003801 milling Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229920003052 natural elastomer Polymers 0.000 abstract 1
- 229920001194 natural rubber Polymers 0.000 abstract 1
- 229920002401 polyacrylamide Polymers 0.000 abstract 1
- -1 polyethylene Polymers 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 229920003051 synthetic elastomer Polymers 0.000 abstract 1
- 239000005061 synthetic rubber Substances 0.000 abstract 1
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
- 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
- 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
-
- 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
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)
Abstract
1,259,053. Polymer compositions. ESB Inc. 13 April, 1970, No. 17458/70. Heading C3P. [Also in Division H1] A battery separator in the form of a film comprises 10-30% by weight of an elastomeric resin binder blended with a gelling agent, at least 50% by weight of the binder being a vinylacetate-ethylene copolymer, the binder and agent being blended in such a manner that the gelling agent does not gel until contacted by the aqueous electrolyte. Suitable binders include polyethylene, vinyl acetate-ethylene copolymers, vinyl chloride-vinyl acetate copolymers, natural and synthetic rubber. Suitable gelling agents which absorb electrolyte include starch, flour, carboxymethyl-cellulose, methyl cellulose, polyacrylamide resins, gums such as gum arabic and inorganic gelling agents such as silica gels. Examples relate to the use of ethylene/vinyl acetate copolymer with starch and flour. The binder and gelling agent are preferably dry blended and formed into films by roller milling. The film may be either self-supporting or applied to a paper backing. The resin forms a continuous matrix for the gelling agent and the gelling agent swells when it absorbs the battery electrolyte.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1745870 | 1970-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1259053A true GB1259053A (en) | 1972-01-05 |
Family
ID=10095536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1745870A Expired GB1259053A (en) | 1970-04-13 | 1970-04-13 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1259053A (en) |
-
1970
- 1970-04-13 GB GB1745870A patent/GB1259053A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |