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4633results about "Cell seperators/membranes/diaphragms/spacers" patented technology

Advanced Metal-Air Battery Having a Ceramic Membrane Electrolyte Background of the Invention

A metal-air battery is disclosed in one embodiment of the invention as including a cathode to reduce oxygen molecules and an alkali-metal-containing anode to oxidize the alkali metal (e.g., Li, Na, and K) contained therein to produce alkali-metal ions. An aqueous catholyte is placed in ionic communication with the cathode to store reaction products generated by reacting the alkali-metal ions with the oxygen containing anions. These reaction products are stored as solutes dissolved in the aqueous catholyte. An ion-selective membrane is interposed between the alkali-metal containing anode and the aqueous catholyte. The ion-selective membrane is designed to be conductive to the alkali-metal ions while being impermeable to the aqueous catholyte.
Owner:FIELD UPGRADING USA INC

Separator for nonaqueous electrolyte batteries, nonaqueous electrolyte battery using it, and method for manufacturing separator for nonaqueous electrolyte batteries

The present invention provides a separator for non-aqueous electrolyte batteries which neither breaks nor slips off at the time of fabrication of battery, gives excellent battery fabricability, causes no internal short-circuit caused by contact between electrodes even if the electrodes are externally short-circuited, can inhibit ignition of battery and produces high energy density and excellent cycle life, and further provides a non-aqueous electrolyte battery using the separator and a method for manufacturing the separator. That is, the present invention relates to a separator for non-aqueous electrolyte batteries which comprises a porous base containing at least one member selected from a porous film, a woven fabric or nonwoven fabric containing an organic fiber and a paper and an organometallic compound applied to the porous base; a method for the manufacture of the separator for non-aqueous electrolyte batteries which comprises allowing said porous base to contact with a solution of organometallic compound by impregnation, coating or spraying, followed by drying or curing with heating to apply the organometallic compound to the porous base; and a non-aqueous electrolyte battery using the separator.
Owner:MITSUBISHI PAPER MILLS LTD

Electrically non-conductive materials for electrochemical cells

Articles, systems, and methods related to the configuration of electrically non-conductive materials and related components in electrochemical cells are generally described. Some inventive electrochemical cell configurations include an electrically non-conductive material (e.g., as part of the electrolyte) that is configured to wrap around the edge of an electrode to prevent short circuiting of the electrochemical cell. In some embodiments, the electrically non-conductive material layer can be arranged such that it includes first and second portions (one on either side of an electrode) as well as a third portion adjacent the edge of the electrode that directly connects (and, in some cases, is substantially continuous with) the first and second portions. The electrically non-conductive material layer can be relatively thin while maintaining relatively high electrical insulation between the anode and the cathode, allowing one to produce an electrochemical cell with a relatively low mass and/or volume. The arrangements described above can be formed, for example, by forming a multi-layer structure comprising an electrode and an electrically non-conductive material layer (e.g., as a coating), and folding the multi-layer structure such that the electrically non-conductive material covers the convex surface portion of the resulting crease.
Owner:SION POWER CORP

Non-aqueous electrolyte battery

A non-aqueous electrolyte battery that contains a molten salt electrolyte and has the enhanced output performances and cycle performances can be provided. The electrolyte has a molar ratio of lithium salt to molten salt of from 0.3 to 0.5, and the non-aqueous electrolyte battery has a positive electrode having a discharge capacity of 1.05 or more times that of a negative electrode thereof.
Owner:KK TOSHIBA

Separator and Non-Aqueous Electrolyte Secondary Battery Using Same

A separator including at least a layer containing a fine particulate filler and a shutdown layer. The fine particulate filler includes a joined-particle filler that is in the form of a plurality of primary particles joined and bonded to one another. A non-aqueous electrolyte secondary battery including this separator exhibits improved safety, high performance and large current discharge capability particularly at low temperatures.
Owner:PANASONIC CORP
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