The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 6057052 | Cell for a metal-air battery The invention provides a modular zinc air cell for use in an electrochemical zinc-air multi-cell battery, each cell being of the type provided with a housing having, two outer major surfaces, and two spaced-apart inner walls, the inner walls defining a fi... | 05/02/2000 |
| 5792328 | Apparatus for removing zinc particle deposits from an electrode The invention provides an apparatus for removing zinc particle deposits from substantially the entire face of a major surface of an electrode in an electrochemical bath, the apparatus comprising a plate attached to actuating means for affecting relative m... | 08/11/1998 |
| 5753384 | Air-cooled metal-air battery The invention provides an electrochemical zinc-air multi-cell battery, each cell being of the type provided with a housing having a base, two major surfaces and two minor surfaces, defining an interior space for containing therein a zinc electrode; at lea... | 05/19/1998 |
| 5582929 | Electrolyte cooling device for use with a metal-air battery The invention provides an electrolyte cooling device for use in combination with a multi-cell metal-air battery, the device comprising an electrolyte reservoir divided into a smaller compartment and a larger compartment, the compartments being connected b... | 12/10/1996 |
| 5569555 | Recharging of zinc batteries The invention provides a process for removing discharged active zinc-containing material from a mechanically rechargeable zinc battery anode, containing the same, the anode being of the type comprising a skeletal frame, including conductive metal and havi... | 10/29/1996 |
| 5565083 | Process and scraper for removing deposits from an electrode The invention provides a scraper for removing deposits from a major surface of an electrode in an electrochemical bath. The scraper consists of a plate which moves across the electrode surface. The scraper is provided with a scraper blade-retaining slot a... | 10/15/1996 |
| 5554918 | Mechanically-rehargeable battery A mechanically-rechargeable single-cell consumer electric battery for generating up to two volts, the battery being capable of electrical recharge. The battery including a replaceable zinc anode, a housing containing the anode and provided with an apertur... | 09/10/1996 |
| 5515939 | Metal-air battery-powered electric vehicle The invention provides a metal-air battery-powered electric vehicle of the type having a motor powered by a plurality of metal-air cells wherein air is continuously provided to the cells by a blower system energized from a power source, in combination wit... | 05/14/1996 |
| 5516599 | Means for storage and transportation of electric fuel The invention provides a rigid reusable transport and storage vessel for retaining a plurality of anode cassettes of pressed zinc particles saturated with aqueous alkaline solution, and utilizable as an electric fuel in a zinc-air battery, the vessel havi... | 05/14/1996 |
| 5487955 | Cooled zinc-oxygen battery The invention provides a multi-cell, sealed, cooled, zinc-oxygen battery, comprising a container containing a plurality of bi-cells, each cell having a housing provided with two major surfaces and accommodating a pair of oppositely-disposed, spaced-apart,... | 01/30/1996 |
| 5447805 | Cell for a metal-air battery A modular cell for a multi-cell metal-air battery system, comprises a relatively flat cell housing having two major surfaces and accommodating a pair of oppositely disposed, spaced-apart, air-permeable, liquid-impermeable cathodes in the form of air elect... | 09/05/1995 |
| 5445901 | Zinc-oxygen battery The invention provides a multi-cell, sealed, zinc-oxygen battery, comprising a container containing (a) a plurality of bi-cells, each cell having a housing provided with two major surfaces and accommodating a pair of oppositely-disposed, spaced-apart, air... | 08/29/1995 |
| 5441823 | Process for the preparation of gas diffusion electrodes The invention provides a process for preparing a gas-diffusion electrode for metal-air batteries and fuel cells of the type having a blocking layer formed from a precursor containing carbon black and particulate hydrophobic polymeric binders, comprising h... | 08/15/1995 |
| 5424143 | Air-cooled, metal-air battery The invention provides a mechanically rechargeable, electrochemical metal-air battery of the type having a plurality of metal-air cells, each of the cells comprising a housing having a base, two major surfaces and two minor surfaces, defining an interior ... | 06/13/1995 |
| 5424147 | Water-activated battery The invention provides a water-activated, deferred-action battery having a housing containing at least one cell, comprising at least one anode selected from the group consisting of magnesium, aluminum, zinc and alloys thereof; a cathode comprising a skele... | 06/13/1995 |
| 5419987 | High performance zinc powder and battery anodes containing the same An electrochemically prepared, high-performance, zinc powder has an apparent density of about 0.2-2 g/cc and a surface area of about 0.5-6 m2 /gm and further has at least one corrosion inhibitor metal intrinsically alloyed therein.... | 05/30/1995 |
| 5418080 | Mechanically rechargeable, electrochemical metal-air battery A mechanically rechargeable, electrochemical metal-air battery of the type having a plurality of metal-air cells, each of said cells comprising (a) a housing having a base, two major surfaces and two minor surfaces, defining an interior space for containi... | 05/23/1995 |
| 5411815 | Transport and storage vessel for electric fuel The invention provides a transport and storage vessel containing a slurry of zinc and an aqueous alkaline solution utilizable as an electric fuel for a zinc-air battery, the vessel being provided with at least one hydrogen vent for venting any H2 | 05/02/1995 |
| 5405713 | Refueling system The invention provides a refueling system for automated recharging of zinc-air batteries of the type having a plurality of active zinc anode elements formed of active zinc material attached to a support frame immersed in an aqueous alkaline electrolyte in... | 04/11/1995 |
| 5378329 | Process for the preparation of an alkaline-zinc slurry for use in batteries A process for the preparation of an alkaline-zinc slurry for use in batteries, the slurry comprising an admixture of (a) at least partly oxidized zinc; (b) an aqueous solution of at least one Group Ia metal; and (c) an inorganic or organic inhibitor. The ... | 01/03/1995 |
| 5366822 | Cell for a metal-air battery A modular cell for a multi-cell metal-air battery system, comprises a relatively flat cell housing having two major surfaces and accommodating a pair of oppositely disposed, spaced-apart, air-permeable, liquid-impermeable cathodes in the form of air elect... | 11/22/1994 |
| 5312701 | Process for preparing a single pass gas diffusion electrode The invention provides a single pass wet fabrication process for preparing a gas diffusion electrode for metal-air batteries and fuel cells comprising: a) preparing an active-layer forming dispersion containing catalyzed carbon black, hydrophilic fluorina... | 05/17/1994 |
| 5232798 | Method for inhibiting corrosion in particulate zinc A method for the inhibition of corrosion in particulate zinc, comprises the step of subjecting the zinc in the form of an alkaline slurry to the action of a corrosion inhibiting effective amount of a corrosion inhibitor which is at least one oxide selecte... | 08/03/1993 |