US483692A - Anton j - Google Patents
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- US483692A US483692A US483692DA US483692A US 483692 A US483692 A US 483692A US 483692D A US483692D A US 483692DA US 483692 A US483692 A US 483692A
- Authority
- US
- United States
- Prior art keywords
- cup
- porous
- solution
- precipitate
- electric battery
- 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 - Lifetime
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- 239000000243 solution Substances 0.000 description 36
- 239000002244 precipitate Substances 0.000 description 34
- 210000000188 Diaphragm Anatomy 0.000 description 32
- 239000000126 substance Substances 0.000 description 32
- 239000011148 porous material Substances 0.000 description 24
- 239000012047 saturated solution Substances 0.000 description 22
- 238000005192 partition Methods 0.000 description 18
- 239000002253 acid Substances 0.000 description 16
- MUBZPKHOEPUJKR-UHFFFAOYSA-N oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 150000003839 salts Chemical class 0.000 description 10
- 239000011780 sodium chloride Substances 0.000 description 10
- WDIHJSXYQDMJHN-UHFFFAOYSA-L Barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 8
- 229910001626 barium chloride Inorganic materials 0.000 description 8
- 230000001419 dependent Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- JIAARYAFYJHUJI-UHFFFAOYSA-L Zinc chloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 6
- 239000002250 absorbent Substances 0.000 description 6
- 230000002745 absorbent Effects 0.000 description 6
- NLXLAEXVIDQMFP-UHFFFAOYSA-N ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 6
- 235000019270 ammonium chloride Nutrition 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 239000011701 zinc Substances 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- 239000011592 zinc chloride Substances 0.000 description 6
- 235000005074 zinc chloride Nutrition 0.000 description 6
- NUJOXMJBOLGQSY-UHFFFAOYSA-N Manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000011149 active material Substances 0.000 description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L cacl2 Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
- 239000001110 calcium chloride Substances 0.000 description 4
- 229910001628 calcium chloride Inorganic materials 0.000 description 4
- 239000004927 clay Substances 0.000 description 4
- 229910052570 clay Inorganic materials 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 235000006408 oxalic acid Nutrition 0.000 description 4
- 230000001376 precipitating Effects 0.000 description 4
- 239000001117 sulphuric acid Substances 0.000 description 4
- 235000011149 sulphuric acid Nutrition 0.000 description 4
- GXUARMXARIJAFV-UHFFFAOYSA-L Barium oxalate Chemical compound [Ba+2].[O-]C(=O)C([O-])=O GXUARMXARIJAFV-UHFFFAOYSA-L 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L Barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- QXDMQSPYEZFLGF-UHFFFAOYSA-L Calcium oxalate Chemical compound [Ca+2].[O-]C(=O)C([O-])=O QXDMQSPYEZFLGF-UHFFFAOYSA-L 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 229960003351 Prussian blue Drugs 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229940094800 barium oxalate Drugs 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- DTYCRHCCLVCUDT-UHFFFAOYSA-J calcium;magnesium;tetrachloride Chemical compound [Mg+2].[Cl-].[Cl-].[Cl-].[Cl-].[Ca+2] DTYCRHCCLVCUDT-UHFFFAOYSA-J 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003247 decreasing Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- DCYOBGZUOMKFPA-UHFFFAOYSA-N iron(2+);iron(3+);octadecacyanide Chemical compound [Fe+2].[Fe+2].[Fe+2].[Fe+3].[Fe+3].[Fe+3].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] DCYOBGZUOMKFPA-UHFFFAOYSA-N 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- QDHHCQZDFGDHMP-UHFFFAOYSA-N monochloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O([C@H]1[C@@H]([C@H]([C@H]2C[C@@H]3C4=C(C5=CC=C(OC)C=C5N4)CCN3C[C@H]2C1)C(=O)OC)OC)C(=O)C1=CC(OC)=C(OC)C(OC)=C1 QEVHRUUCFGRFIF-MDEJGZGSSA-N 0.000 description 2
- 230000000717 retained Effects 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- BYGOPQKDHGXNCD-UHFFFAOYSA-N tripotassium;iron(3+);hexacyanide Chemical compound [K+].[K+].[K+].[Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] BYGOPQKDHGXNCD-UHFFFAOYSA-N 0.000 description 2
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 2
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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion 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
- 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
Definitions
- porous diaphragms or cups were placed in batteries to which the salt of a metal had been added, so that the salt in solution, in the excitant surrounding the electro-negative pole of the cell, would react upon the salt or base in the solution around the electro-positive pole, and thus form a precipitate in the pores of the diaphragm.
- My invention relates to a process of treating cups, diaphragms, partitions, and the like, so that the same will not be porous to the physical transfusion of liquids,while they will remain in such a condition that chemical ac tion can pass through them.
- the cups, 850., treated by my method have also the advantage in that they can be treated again and again, it through any cause the non-porosity of the cup, &c., should in any way be afifected, at the same time not appreciably increasing the resistance of the cup, &c. I will now point out some of the advantages that will be had if such a treated cup be used in place of a porous one in an electric battery-as, for instance, a sal-ammoniac open-circuit battery.
- any sal-ammoniac cell in which the porous cup is filled with a mixture of carbon and manganese dioxide and into which a carbon rod is inserted, which cup and contents is now placed in a solution of ammonium chloride into which solution, also, a zinc rod is suspended.
- a cell is in action, some of the zinc is dissolved 0E, forming zinc chloride, which, being solu-' pores of the cup and cause it to break and disintegrate, necessitating, as before, the replacing of the cup and its contents.
- Treated cups as made by me can also be placed in two-fluid batteries, where it is desired to keep two fluids apart, and by the use of such a cup, partition, or diaphragm or the like the greatest amount of useful energy can be obtained both from the zinc and acid or whatever active material or materials are made use of.
- Such cups, partitions, 850. can also be placed in electrolytic apparatus where it is desired that recombination be reduced to the minimum.
- I can use as the first solution either hot or cold, preferably hot, as such a hot saturated solution is much stronger, a saturated solution of the protosulphate of iron, and then as the second 01 precipitating solution, a saturated solution of the red prussiate of potash, when I get a blue, amorphous non gelatinous electrolytic precipitate of Prussian blue, or I can use a sat urated solution of tungstate of soda, an as the second solution any mineral acid, preferably nitric, of ordinary strength.
- any amorphous non-gelatinous precipitate whether precipitated in the pores or openings in any holder-as, for instance, a porous cup, diaphragm, or the like, or any amorphous non-gelatinous precipitate used as a partition, through which the electric current can pass, while it prevents the transfusion of liquids, and which precipitate can be made use of as a filling supported in any suitable way.
- the amorphous non-gelatinous precipitate may be supported between sheets, or it may be precipitatedin any porous substance, as felt, asbestus, or the like, or it can be precipitated in any absorbent substance or'materialas, for instance, parchment, vegetable parchment, fibrite, kartavert, hard fiber, or the like.
- the cup can be kept on hand or shipped to any part of the country, if so desired.
- Aseparating diaphragm or partition for an electric battery or electrolytic cell partially or wholly of an amorphous non-gelatinous precipitate precipitated before use in an electric battery or electrolytic cell, and which precipitate is not dependent upon the solutions subsequently used in an electric battery or electrolytic cell, substantially as described.
- a separating partition or diaphragm for an electric battery or electrolytic apparatus consisting of a porous or absorbent substance impregnated with an amorphous nongelatinous precipitate impregnated before use in an electric battery or electrolytic cell, and which precipitate-is not dependent upon the solutions subsequently used in an electrlc battery or electrolytic cell for its treatment, substantially as described.
- a separating partition or diaphragm for an electric battery or electrolytic cell consisting of a porous or absorbent substance or material having its pores or substance filled with an amorphous non-gelatinous precipitate precipitated before use in an electric battery or electrolytic cell, which precipitate is not dependent upon the solutions subsequeutly used in an electric battery or electrolytic cell for its treatment, substantially as described.
- a separating diaphragm or partition for an electric battery or electrolytic cell consisting of a porous substance having its pores filled with an amorphous non-gelatinous precipitate and said precipitate being preserved in a moist state by treatment with a deliquescent salt, substantially as described.
Description
UNITED STATES PATENT OFFICE.
ANTON J. LEnMAmor NEW YORK, N. Y.
ELECTROLYTIC DIAPHRAGM.
SPECIFICATION forming part of Letters Patent No. 483,692, dated October 4, 1892.
Application filed July 6, 1891. Serial No. 393,619. (No specimens.)
To all whom it may concern.-
Be it known that I, ANTON J. LEHMAN, a citizen of theUnited States, residin gin the city, county, and State of New York, have invented a new and useful process for treating cups, separating-partitions, or diaphragms to be used in electric batteries or electrolytic apparatus and in the arts in which it is desired to have a cup, partition, or the like to keep.two llquids apart; and I declare that the following is a full, clear, and exact description, which will enable others skilled in the arts to make and use the same.
Previous to myinvention attemptshave been made to treat cups, diaphragms, and the like to be used in electric batteries or electrolytic apparatus, so as to prevent or retard the transmission of liquids through the pores or spaces and at the same time still allow the currentto be drawn from or passed through the cell or apparatus. One of the methods in use is to take a porous clay cup and heat it, and While hot to partially paraffine or wax it. This method merely decreases the porosity of the cup by filling the pores with an inert substance, which in itself is not an electrolyteand will not allow the current to pass through it. It will be seen at a glance that if the cup be parafiined or waxed often enough it will eventually become an absolutely nonporous cup and will not allow any current to be drawn from or passed through it. Still another process is to fill the pores with a jellylike substance. Now all jelly-like substances, whether organic or inorganic, owe their nature to the water chemically retained, and it is due to this water that they are jelly-like. If the water be removed, either by evaporation or other means, the water previously re tained is driven oit or absorbed, and if such a cup or diaphragm were used in an electric battery, with its pores filled with such a jellylike material, it after losing its water would be as porous almost as it originally was. Again, if such a treated non-porous cup were used in an electric battery in which any strong acid was used it in a short time, depending upon the thickness of the cup, amount of acid, and the strength of the acid,would cease to be a non-porous cup. As theaffinityof strong acids for moisture of any kindiswell known,the acid would absorb or unite with the water of the jelly and the cup would be practically as porous as it originally was and there would nowloe nothing to prevent ditfusion from going on. In yet another method porous diaphragms or cups were placed in batteries to which the salt of a metal had been added, so that the salt in solution, in the excitant surrounding the electro-negative pole of the cell, would react upon the salt or base in the solution around the electro-positive pole, and thus form a precipitate in the pores of the diaphragm. There are two great objections to such a way of preventing diffusion or local action: first, substances are added to the cell that are not necessary to the working of said cell, thereby proportionately decreasing the life of the bat tery; secondly, the diaphragms increase in resistance, and if such cells are short-circuited the diaphragms in a very short time become so non-porous as to be of no use whatsoever. Such cells may show quitea high electro-motive force after such short-circuiting; but the current that can be drawn from such a cell is so slight, if there is any at all, as to be for all commercial purposes, where a large amount of current and low internal resistance is necessary, valueless.
My invention relates to a process of treating cups, diaphragms, partitions, and the like, so that the same will not be porous to the physical transfusion of liquids,while they will remain in such a condition that chemical ac tion can pass through them. The cups, 850., treated by my method have also the advantage in that they can be treated again and again, it through any cause the non-porosity of the cup, &c., should in any way be afifected, at the same time not appreciably increasing the resistance of the cup, &c. I will now point out some of the advantages that will be had if such a treated cup be used in place of a porous one in an electric battery-as, for instance, a sal-ammoniac open-circuit battery.
Take for instance any sal-ammoniac cell in which the porous cup is filled with a mixture of carbon and manganese dioxide and into which a carbon rod is inserted, which cup and contents is now placed in a solution of ammonium chloride into which solution, also, a zinc rod is suspended. When such a cell is in action, some of the zinc is dissolved 0E, forming zinc chloride, which, being solu-' pores of the cup and cause it to break and disintegrate, necessitating, as before, the replacing of the cup and its contents. By replacing the porous cup with one of my treated or non-porous ones the zinc chloride cannot come incontact with the ammonia, and consequently no zinc hydrate can be precipitated, and as there are no pores for the double salt ammonia and zinc chloride to crystallize in the cup cannot crack or fall to pieces on that account. By this change it will be seen that the efficiency and length of life of the cell is increased. Treated cups as made by me can also be placed in two-fluid batteries, where it is desired to keep two fluids apart, and by the use of such a cup, partition, or diaphragm or the like the greatest amount of useful energy can be obtained both from the zinc and acid or whatever active material or materials are made use of. Such cups, partitions, 850., can also be placed in electrolytic apparatus where it is desired that recombination be reduced to the minimum.
I will now describe the process I prefer in the manufacture of cups, partitions, or diaphragms to be used in electric batteries or in electrolytic cells or apparatus.
I take as a holder a well-baked porous clay cup or any similar substance and place it in a saturated solution of barium chloride and leave it in this solution over night. If it is desired to hasten the operation, I place the cup in a boiling saturated solution of the barium chloride and leave it in it till it has thoroughly soaked into the cup and till no more air-bubbles are seen to rise from the cup. I now gradually allow the solution to cool till it is cool enough, so that when acup is taken out of the solution it will remain wet. It must not be of such a temperature that the cup dries the minute it is removed from the solution. It should be about bloodwarm, so that when the cup is taken out of the solution it remains Wet, and while still wet I immediately place it in a 10 Baum strength of sulphuric acid, or in a saturated solution of any soluble sulphate. If a veryhigh resistance cup is wanted, it must be placed in strong sulphuric acid. The weaker the acid the lower will the resistance of the cup be. I find about 10 Baum gives excellent results, as the resistance of the cup seems to be no more than if the cup had not been treated at all. I find, also, that the precipitated barium sulphate is an amorphous nonlowing, as they all give excellent results.
I soak the cup in a saturated solution of barium chloride, as in the previous case, and
then place it in a saturated solution of oxalic acid, when'I get in the pores of the cup or partition an amorphous non-gelatinous electrolytic precipitate of barium oxalate, or I can in place of the barium chloride use calcium chloride of such a strength that it Wlll. easily soak into the cup, and then place the soaked cup, 650., in the saturated solution of oxalic acid, as before, and I, in this case, get an amorphous calcium oxalate, or I can use as the first solution either hot or cold, preferably hot, as such a hot saturated solution is much stronger, a saturated solution of the protosulphate of iron, and then as the second 01 precipitating solution, a saturated solution of the red prussiate of potash, when I get a blue, amorphous non gelatinous electrolytic precipitate of Prussian blue, or I can use a sat urated solution of tungstate of soda, an as the second solution any mineral acid, preferably nitric, of ordinary strength. I do not limit myself to these mentioned solutions; but claim any amorphous non-gelatinous precipitate, whether precipitated in the pores or openings in any holder-as, for instance, a porous cup, diaphragm, or the like, or any amorphous non-gelatinous precipitate used as a partition, through which the electric current can pass, while it prevents the transfusion of liquids, and which precipitate can be made use of as a filling supported in any suitable way.
I do not limit myself to forming the pre cipitate in the pores of the supporting or holding substance, for it may be introduced between or into such substances in various ways, which will be evident to any skilled in the art. Neither do I limit myself to any particular form or construction of holder or sup port, or to any particular substance which can be precipitated, or to any particular method of precipitating the substance.
The amorphous non-gelatinous precipitate may be supported between sheets, or it may be precipitatedin any porous substance, as felt, asbestus, or the like, or it can be precipitated in any absorbent substance or'materialas, for instance, parchment, vegetable parchment, fibrite, kartavert, hard fiber, or the like.
If it is not desired to use the cup at once, I dip the cup to keep it moist till wanted in a saturated solution, either of the calcium chloride or magnesium chloride, or the cup can IIO be wrapped up in a piece of paper or other absorbing material which has been soaked in the deliquescent solution. In this way the cup can be kept on hand or shipped to any part of the country, if so desired.
What I claim as my invention, and desire to secure by Letters Patent, is-
1. Aseparating diaphragm or partition for an electric battery or electrolytic cell, partially or wholly of an amorphous non-gelatinous precipitate precipitated before use in an electric battery or electrolytic cell, and which precipitate is not dependent upon the solutions subsequently used in an electric battery or electrolytic cell, substantially as described.
2. A separating diaphragm or partition for an electric battery or electrolytic cell of an amorphous non-gelatinous precipitate, combined with a holder, precipitated or impregnated before use in an electric battery or electrolytic cell, which precipitate is not dependent upon the solutions subsequently used in an electric battery or electrolytic cell, substantially as described.
3. A separating partition or diaphragm for an electric battery or electrolytic apparatus, consisting of a porous or absorbent substance impregnated with an amorphous nongelatinous precipitate impregnated before use in an electric battery or electrolytic cell, and which precipitate-is not dependent upon the solutions subsequently used in an electrlc battery or electrolytic cell for its treatment, substantially as described.
4. A separating partition or diaphragm for an electric battery or electrolytic cell, consisting of a porous or absorbent substance or material having its pores or substance filled with an amorphous non-gelatinous precipitate precipitated before use in an electric battery or electrolytic cell, which precipitate is not dependent upon the solutions subsequeutly used in an electric battery or electrolytic cell for its treatment, substantially as described.
5. A separating diaphragm or partition for an electric battery or electrolytic cell, consisting of a porous substance having its pores filled with an amorphous non-gelatinous precipitate and said precipitate being preserved in a moist state by treatment with a deliquescent salt, substantially as described.
ANTON J. LEI-IMAN.
Witnesses:
J. A. LEHMAN, H. WELLBROCK.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US483692A true US483692A (en) | 1892-10-04 |
Family
ID=2552542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US483692D Expired - Lifetime US483692A (en) | Anton j |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US483692A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3489610A (en) * | 1964-06-30 | 1970-01-13 | Mc Donnell Douglas Corp | Battery having a porous insoluble hydrous inorganic oxide separator |
| US3497394A (en) * | 1963-11-29 | 1970-02-24 | Mc Donnell Douglas Corp | Inorganic permselective membranes and method of making same |
-
0
- US US483692D patent/US483692A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3497394A (en) * | 1963-11-29 | 1970-02-24 | Mc Donnell Douglas Corp | Inorganic permselective membranes and method of making same |
| US3489610A (en) * | 1964-06-30 | 1970-01-13 | Mc Donnell Douglas Corp | Battery having a porous insoluble hydrous inorganic oxide separator |
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