Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 6617074 | Lithium ion polymer secondary battery and gelatinous polymer electrolyte for sheet battery A lithium ion polymer secondary battery is a laminate of a positive-electrode sheet of a positive-electrode collector foil provided with an active material thereon, a negative-electrode sheet of a negative-electrode collector foil provided with another ac... | 09/09/2003 |
| 6509123 | Gel electrolyte and gel electrolyte cell The present invention provides a gel electrolyte cell including a non-aqueous electrolytic solution containing lithium-containing electrolyte salt solved in a non-aqueous solvent and made into a gel state by a matrix polymer, and the gel electrolyte conta... | 01/21/2003 |
| 6280881 | Lithium secondary battery A lithium secondary battery with an electrolyte containing one or more alkai metal salts, one or more non-aqueous solvents and immobilized by a polymer selected from cellulose acetates, cellulose acetate butyrates, cellulose acetate propionates, polyvinyl... | 08/28/2001 |
| 4957827 | Rechargeable alkaline manganese cells with zinc anodes A rechargeable alkaline electrochemical cell has a manganese dioxide cathode and a zinc anode. The cathode is mixed with graphite or other conductive carbon and a binder, and is contained by a metallic screen which also serves as an oxygen evolution catal... | 09/18/1990 |
| 4857424 | Zinc alkaline electrochemical cells with reduced mercury anodes Alkaline zinc-manganese dioxide electrochemical cell containing a small amount of an organosiliconate additive as a means for reducing the amount of mercury used in the zinc amalgam. The organosiliconates added to the anode are film forming organic wettin... | 08/15/1989 |
| 4834772 | Battery electrolyte A polymeric gelled electrolyte and the method for preparing the novel polymeric elelctrolyte in a crosslinked and noncrosslinked state is disclosed. The polymeric electrolyte is prepared from chitosan which may be crosslinked with aldehydes or remain uncr... | 05/30/1989 |
| 4797190 | Ionic semiconductor materials and applications thereof An ion transport membrane includes 10 to approximately 50 percent by weight of a hydrogel which is dispersed within an inert nonporous matrix material to form a composite wherein the quantity of water that can be absorbed by the composite does not substan... | 01/10/1989 |
| 4608325 | Anode binders for electrochemical cells A blend of powders to be used in gelled anodes of electrochemical cells contains oil binders comprised of liquid petrolatum or halocarbon, particularly fluorocarbon, oils. Such binders maintain homogeneity of the powdered anode blends even under adverse s... | 08/26/1986 |
| 4464446 | Anodes of composite materials and accumulators using solid anodes The present invention relates to anodes of composite materials, which are formed on a support constituted by fibrils, which are coated with a conducting layer of copper of thickness comprised between 3 and 10 microns. The copper layer is covered with a la... | 08/07/1984 |
| 4455358 | Electrochemical cells having a gelled anode-electrolyte mixture An electrochemical cell having an anode, a cathode and an aqueous alkaline electrolyte solution. The anode is an intimate gelled mixture of a powdered metal, an aqueous electrolyte solution and an agent capable of gelling the mixture. The agent is a mater... | 06/19/1984 |
| 4258110 | Electrolytic device A dry-cell battery construction includes, together with a conventional filler material containing a depolarizing agent in contact with its cathode, an electrolyte comprised of a raw paste material from vegetal origin contacting the zinc anode thereof. The... | 03/24/1981 |
| 4238556 | Lead-acid cell A lead-acid storage battery having a lead negative electrode, a lead dioxide positive electrode and a sulfuric acid electrolyte having an organic catalyst dissolved therein which prevents dissolution of the electrodes into lead sulfate whereby in the cour... | 12/09/1980 |
| 4038466 | Method of producing thickened electrolyte for primary cell A method of producing a thickened electrolyte for a primary cell, which involves mixing, at about room temperature, aqueous solutions of calcium chloride, zinc chloride, and ammonium chloride with a tanning agent, such as chromium sulphate, and starch as ... | 07/26/1977 |
| 3969147 | Gelled alkaline electrolyte Gelled electrolyte for electrochemical generators, of the type comprising an alkaline solution to which is added a gelling agent. The said agent comprises modified or reticulated starches. The gelled state of these electrolytes is maintained, whatever the... | 07/13/1976 |
| 3936318 | Electrical energy storage battery means An improved electrical energy storage battery is provided having a case, at least two porous electrolyte containers positioned within the case, a solid hydrogel positioned within the case and between the electrolyte containers, the hydrogel containing an ... | 02/03/1976 |
